Bmw idle up and down. During a cold … I have a 2011 335i.

Bmw idle up and down rouigh idle up and down i have changed my throttle position sensor and its still doing the same thing. Powered by The revs jump up and down and you can feel vibrations on the inside of the car like the engine is shaking. youtube. E90 is notorious for not logging miss fires. injectors, hmm when i drive on lpg (GAS) i feel same problem as driving on petrol. Was that problem ever solved as I just bought my wife a 318i facelift a/t n42 motor that has then exact same symptoms. I installed a new idle control valve and cleaned the throttle body. I have manhart downpipes and fi catback installed, bmc filters, stage 2 tune. HELP!!! The idle speed should feel consistent without skipping or slipping. Content on M5Board. Posts. when it seemed at it's worst point, I rolled the windows (all of them at once) up and wouldn't you know the idle smoothed out again. In addition, this occurs maybe 1 out of ~100 starts. It would get too much input and rev; hit some kind of limit that told it to stop and shut of the fuel until it dropped too much then repeat; surge, drop, surge, drop. But no codes or engine light on. Rep. I am attempting to get a video on my BB before service The car starts with a kind of stumble into idle too (clumsy start), and it stalled about a month ago on me (fully warmed up. Long story short, they adjusted the idle. It is either high or low idle. i've had 2 other bimmers beside this one so i'm not unfamiliar with them. Initial startup idle ~1250 rpm for a few moments - then bog down - then shoot up and settle. On the F25 BMW petrol engines, the engine speed is Built it all back up and after some while cranking it eventually fired up with a puff of smoke not surprisingly after the amount of carb cleaner and crap that had gone through it. The fuel pump went on 19 March after another break down and tow in. 2012-2015 BMW 3-Series and 4-Series Forum. I recently had it in to a local BMW specialist to replace the thermostat housing for a coolant leak and asked the mechanic about it. Appreciate 0 Quote 12-05-2013, 11:22 AM #15: JETmn. In most of today’s cars, an idle speed of 600 to 1000 RPMs is average. instead of starting up with a rough bouncy idle the car will actually stall. With information from this forum, I removed and cleaned the intake vanos The Honda Accord is known for its reliability and smooth performance, but even these dependable vehicles can experience hiccups. Any suggestions on what the rough idle could be. well i do downshift when i drive. I turn the car off and start back up and everything is smooth. So long story short I left the car in BMW garage for like a week. Appreciate 0 Quote 09-20-2013, 02:10 AM It idle's up and down then level's off after the check engine light goes off, and soon as you start to move it does it again up and down. BMW is a reliable vehicle to own. If your motorcycle’s Idle Control Valve wears out or its adjusted idle speed is incorrect, your motorcycle idles at inconsistent RPM speeds, especially when multiple electrical components are running. New plugs, new coils, new index 12 injectors all in Another way to avoid rough idling is to use high-quality and clean fuel. But on the 325e is does not hum while on, and when electrical hook up is disconnected it changes no characteristics. 1999 328i E46 Rough idling when cold Revs up and down. Period. Hope it helps) Have a 2007 BMW 335 and the gas pedal would not work and it would rev up and down by its self. it also seems to accelerate on its own while driving at any speed. The car is a BMW E90 320d M47 163hp automatic. Corrects several engine performance issues caused by a failed idle controller, including: stalling, rough or low idle, no idle compensation for accessory loads, and a possible check engine light or failed emissions test. Until yesterday, the E28 '87 528e was driving and idling totally fine. When I start it cold, I get the wastegate rattle for about five seconds and then it quiets down and no problem at all. In this video we get a BMW X3 come in running poorly and blowing lots of smoke. Routine: start in garage (fires up, settles to 1000rpm then a bit of shaking), back it out of the garage after 10 secs then put it in P (idles + shakes a bit at 1000rpm, revs drop a bit to 900rpm, back out of driveway and drive off after ~20 secs. Once the engine warms up, I release my foot from the accelerator and the car idles on its own. This is a common problem in 1999 2000 2001 2002 2003 Acura 3. I performed this experiment a few more times with the exact same Interesting thing the idle was bouncing really bad two days ago right when i started it up when it was cold at a high idle and had the hood up for something so i pinched off the idle air control valve intake hose and the car stopped bouncing the idle and went normal. This can manifest as a rough idle, engine shaking, or even stalling. com is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. Replaced the MAF sensor with a brand new BMW one and reset the ecu with my ELM327. While sitting at a red light you can see the RPM needle slightly jumping up and down. Search Fixya. The rpm typically wanders from 700rpm to 1500rpm or higher. I have european E36 325i, 1994, M50B25 142kw coupé, AUTOMATIC GEARBOX On monday i will go to bmw store and buy connector to valve cover ventilation and some hoses too. Come join the discussion about Bimmerfest events, production numbers, programming, performance, modifications, classifieds, troubleshooting Varying idle, particularly with the AC on. If the engine is not the problem, there are a few other things to The most common causes when an engine RPMs are revving up and down at idle and the vehicle is parked or stopped. the problem goe so, I've been searching these forums as a guest and trying what I can to fix this issue. smoke test passed but for a few bubbles coming out of the sucking jet pump plastic. Also the bogging down on accels and smoking has gone too! Bimmerforums is the preferred online BMW Forum and community for BMW owners. I have had to do minor maintance things to it,but nothing major. I do notice when starting the car it can sort of shake a little for a few seconds then settle down. Come join the discussion about Bimmerfest events, production numbers, programming, performance, modifications, classifieds, troubleshooting, maintenance FWIW. However, never should the idle be falling below 700RPM or so. The car feels extremely slow rpms start bouncing up at down when slowing down. I guess i need to have some service done to get it fixed its a new car. Sometimes it starts calmy, others it wobbles the car a bit, regardless of recently driven or standing for a week. I replaced the tps and iacv and cleaned the throttle body and still have the same issues. picked up an 86 325es that sat for 6 years. The 4 main reasons usually why a vehicle just cuts off are as follows 1 restricted fuel flow which you could rule out easily if the vehicle sputters or hesitates lets say climbing a hill or under heavy acceleration 2 a faulty map (manifold absolute pressure) low barometric pressure signal received can cause vehicle to cut out 3 a faulty idle control circuit which is usually The BMW 318i suffers from a variety of idle problems, including rough/low idle, and erratic or surging idle. M5Board. The customer suspected a lack of fuel but we determined it was a fault on the I know this is old, but my car has had the rough idle at start up throwing the Lean Codes with Fuel Cutoff. No real pattern to it. i have been having this engine problem for about a month now. May 3, 2018 by Trev. Hello i am new to the forum and bmw in general. What happens is the engine is raising the RPM to heat the catalytic converters back up, and then idles down once they get hot enough, and it does so in a cycle. 2 TL Idle Air Control Valve. 60 to 12. any ideas? :help try this it's easy to do only 5 minutes and solved all your rough idle and check engine light problems on your (2000-2009) later or newer yes! all BMW E60, X3, X5, 325i,330i,335i,525i,528i,530i,535i, check out the manifold adjuster Google this up. BMW did nothing to help me on this 335i N54 surging idle, reduced power, dsc malfunction Bimmerpost ☰ Model Selection. (mid 80's to 90's, it's Florida) As it warms up it smooths out a LITTLE (when it comes down from 1200 RPM), but if I gently take it back up to above 1000 it's still Idle is bouncing up and down randomly, sometimes its ok sometimes its not. thats why i'm trying to figure out if this is an electrical problem or what. Then yesterday on a short drive when I stop it will idle up/down rapidly from 800 - 1500 every 1-2 seconds. I suggest to clean out the idle control valve and the intake air adjuster and maf sesnor first. After the first start the rest of the day is fine. bmw messed up ( idle problem) Ivan413 said: View attachment 30206 Sent from my iPhone using AutoGuide. It does that on cold and also on warm engine, there is no long crank, car starts in normal way. but it really does not affect the car's drivability unless you want to begin driving immediately upon start up. Bimmerforums is the preferred online BMW Forum and community for BMW owners. Does this for a short period and then settles fo normal idle. With the engine on fully I noticed the mass air flow signal was erratic like voltage was bouncing up and down so I’m assuming the mass air flow is defective because ain’t it suppose to be steady reading at idle and when pressing gas it should go up steady and when letting go accelerator it should drop back Does your idle fluctuate up and down, to the point where the car feels like it's going to stall and you have to pump the gas pedal to keep it running? About a $120. ) MY rpms move up and down, irregularly and I’ve been having this issue for a while now and still can’t figure it out. - In INPA the the DME Voltage Supply and Battery Voltage Fluctuate between 14. Two visits to the dealer service center resulted in no resolution. It will never idle rough or shake again unless the car has been off for around 10h. Also, poured in 2 bottles of Redline Fuel System Cleaner before. I cleaned my differential My 1997 Z3 revs when I pull up to a light and sit idle. This started to become quite dangerous when pulling out of side turnings, away from roundabouts etc no power no power no power then boost all over the shop. it get fine. Not ideal. rythmic up and down surging. This video show how to change throttle body of BMW X3 E83. soz to bump up an old thread, but having similar probs with my 320i 1989 auto, its fine in park but when idle in drive the rev counter is up and down, sometimes dropping so low it cuts out, its started to shudder in idle and drag on acceleration now. 5 Ways To Fix Rough Stumbling Idle On BMW E90 E92 328i 330iAmazon link for spark plugs https://amzn. What would cause this? Just a heads Could the gas that was in the vacuum lines to make the Idle speed stabilizer to malfunction and cause the idle to go up and down or could it be the mass air flow sensor When something like the A/C is turned on the extra load will slow the idle down so the electrical part of the ICV opens up more flow are to speed the idle back up. Have read about idle control valve issues with these cars but have yet to bring it to the dealer. Here is a video of it. Bimmerpost ☰ Model Selection. Clean fuel minimizes contamination, dirt build-up, and clogging in the engine. 25$. Amazon Link Low Cost OBDII Scan Tool: https Customer: Hi still have a problem with a bmw e90 320d 2008 is idling up and down like hunting pls help me. For those wanting to see more of BMW's 4th generation 3 series, the beautiful and Once i drive somewhere, stop the engine, and then start again is when i notice the car kind of struggle as if its not getting enough fuel. 60 for couple My 2005 X3 3. Get reduced engine power and dsc malfunction. This happens only when engine is hot (Driving and park then 5-10 minutes later I start the engine, it is rarely happens when the engine is cold The idle is up and down. 0i rough idle. After a while I noticed that in park idling it still had a slight rough idle. Anytime vehicle is at speed, it runs great. Bit of black smoke out the exhaust. I replaced multiple parts that m Rough Idle, revs jumping up and down & white smoke. and I mean just so the RPM's increase then I have the RPM's go up and down. to/3cTcBQXAmazon link for coil packs https://amzn. My 2011 528i with 24,000 miles is silky smooth and idles evenly at around 700 rpm--no fluctuating. 90 and this fluctuation match with the idle engine rpm up and down between 640 - 670 . Our professionals are here to help make sure you find the answers you need to your questions and Just joined the BMW ranks, so be gentle on the n00b LOL! I picked up a 2015 320i with 8K CPO from my local dealer. Our professionals are here to help make sure you find the answers you need to your questions and Ok, so to be clear, your idle is knackered when the engine is WARM, not at cold start-up? Is the idle ROUGH, like misfiring, and you hear a popping sound in the exhaust? Or is it going up and down randomly, like the engine is speeding up, slowing down, all by itself? I just noticed this quote and thought I'd paste it here: An idle that countinuously goes up and down is tipically due to eaither a lean fuel mixture or a faulty idle control system. what about my problem he advised to clean throttle body,he thinks 90% it will cure this problem. Our professionals are here to help make sure you find the answers you need to your questions and Idle Control Device If everything seems ok, then look into these: OEM replacement idle speed control for M5/M6. Jump to Latest 2005 BMW 745 LI Sapphire Black 22's, AC Schnitzer Kit, H&R Lowering Springs, Tinted tails and Signals, AC Schnitzer Carbon Door Pillars, Cross Drilled and Slotted Rotors, Tuner Mod, Tinted Windshield, Are the RPM's going up and down or is it something you feel when holding the steering wheel? Appreciate 0 Quote 12-04-2013, 02:31 PM Have to admit it's more noticeable now that I can hear the idle clearer with my BMW PE. and they change vanos as whole unit they got secondary parts imported from japan and whole vanos costs approx. If you have an automatic and the acceleration is slow and it idling rough, rpms jumping up and down whilst standing still, then that would indicate gearbox problems. Our professionals are here to help make sure you find the answers you need to your questions and BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > Engine revving when pressing brake pedal only on some start-ups I have a rough idle on a 1995 BMW 525i. Associated with ongoing engine rpm increases and decreases, a "hunting" or wandering idle condition frequently occurs when engine rpm is unable to stabilise at any value. Temperature in mornings is around 70F or 20 C. com is not in any way affiliated with Bayerische Motoren Werks AG The revs seem to bounce up and down quite a bit for about 10-20 seconds. When you start it the engine sounds fine but the idle is pulsing up and down then it cuts out after a minute or two. So I rolled the window up. The BMW rough idle is now finally solved!UPDATE: Rough Idle is NOW FIXED: https://www. Over a period of several months the situation continued but an additional idle issue developed. No codes through ISTA/D Any tips on beginning to investigate? Thank you Cust States at start up the cars idle fluctuates and surges between 800-1200 RPM. Slightly lowering idle back to 900 rpm stops the behavior. Idle: The idle stop screws are the big ones, they act like a wedge to hold up the slides. Matt. Appreciate 0 Quote 04-01-2011, 01:44 PM #12: KC335 MY rpms move up and down, irregularly and intermittently sometimes stable with the jerks, sometimes up and down 200-300 rpms. Our professionals are here to help make sure you find the answers you need to your questions and 1999 Acura 3. You did never You are correct the idle can surge up to 1100-1200 rpm. Just put in a new alternator (bearing was toast) and new ignition coils. The car revs up and down when idling, and it stalls when you try and pull away. 40 to 14. It just started to act funnt, when I start it the idle is rough, goes up and down a lot. F40Model Year: 2019 + It basically starts fine then revs up a couple times and settles down and drives and idles perfectly after that. Idle is erratic as of now, reving up to 1300 and then dropping down to 700-800. again first minute is fine after that an up and down idle for few few minutes until warm and then back to just working fine. It eventually calms down and maintains a smooth idle has never stalled. fuel filter , air cleaner, fuel pressure regulator, plugs, wires, cap and rotor. The fluctuation would occur during warm and cold days and even after When I first start up The car everything is fine and as it starts to warm up and the RPMs drop to around 1000 the idle slightly surges up-and-down about 100 RPM it's very slow and faint. I have found it best to roll the throttle on just a bit while I turn the idle speeds, then let it down to check it. Our professionals are here to help make sure you find the answers you need to your questions and The dealership can adjust your idle up to 150RPM from the factory spec. when i bought the car it ran perfect and sounded great, but when you apply the brakes the engine starts to rev up and down at a fast rate does it every time though maybe sometimes the rate will change. Engine stumbles from idle. 1986 BMW 3 Series; BMW X3 Series Car and Truck is it just an unstable idle ( revs up and down) or does the engine have a slight misfire? Read full answer. 1,595. BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > 2012-2019 BMW 3 and 4-Series Forums > General F30 Sedan / F32 Coupe / F36 Gran Coupe Forum > Revs going up and down at idle Post Reply Thread Tools: Search this Thread 03-01-2023, 05:38 AM #1 I've had my 2002 325ci 5 speed prem/sport 33,00km for 4 weeks now and am reading up more and more about this seemingly well known idle surge issue and I'm pissed as hell about this. 2 TL , 2000 2001 2 My z3 idles up and down with ac on or just fan on high with lights on. throttle body mainly control air go in the engine bypass with MAF sensor, When a throttle body is cold morning, just woke up. Mechanical Engineer with 20 years experience in the auto industry, 8 yrs in formula 1 engine testing. Bmw has changed from Bosch to Delphi because of this reason. Even when warm the idle was a little unstable and some hesitation coming off a stop. com/watch?v=vlfTE31VlOwPatreon: With age and use, parts may begin to fail, causing an engine light indicator, issues with the engine revving and winding down at idle, and other issues with the vehicle’s performance. When ever I start my car after sittign for awhile, it idles at about 1,000 and will rev up to 1,200 and back down for the first 10-20 seconds then will purr nice, but sounds like **** untill then. 1. But it's been about 2 weeks and now the car has problems with start up. 2001 BMW 740i Sport. Seems the carbs are very sensitive to idle screw setting. That will tell you if the maf is bad also. As in, 2,200-2,500rpm idle. Final Thoughts. Most probably: throttle actuators. I'm thinking they should take the valve covers off The ICV has a measured flow opening that should provide a set idle speed. My battery was dead and I push-start the car (push the car in first gear and release the clutch) it started but it start my RPM (Techometer) up/down continiously and automatically, I drove it and for a half mile and parked it. Mine will fluctuate idle speed from 1000 to 1400 rpm for about 15 seconds after a cold start up only if the air conditioner is on (presenting an additional load to the engine). No improvement. The anomaly was a fluctuating RPM gauge upon idle, the truck would start normally but would pulse downwards for a instant and then resume to normal. In 2011 Sep one of the members (Syl) posted a problem on a 318i facelift idling problems and zaleonardz advised him on the problem. EDITED WITH VIDEO CLIP -- RPMs fluctuating up and down UPDATE: Uploaded videos of the issue. What I've noticed is in the morning, in the garage, when I first start the car, it starts okay then within a few seconds the idle starts going up and down. Apparently outside temp has no effect since it shakes even now with 70F morning gents please would some one help, got a E46 323i when we start it up in the mornings the car idles rough (rev's bounce up and down) or the car just dies, when we try drive the car it dies, this happens for about 15-20 mins from starting. 36,516 satisfied customers. Imagine this: You’re idling in your car, perhaps waiting for a friend, and suddenly notice your RPM needle pirouettes up and down seemingly of its own accord. My 1986 528e bmw is having a idle problem it idles up and down, runs fine when driving but when stoped and in neutral it idles up and down Tuesday, February 15th, 2011 AT 1:47 PM 1 Reply M52TU 145K miles 2000 528i Auto I replaced my intake boot with a large crack suddenly a new problem appeared; the idle bounces up and down a couple of hundred RPM on cold starts. Most irritating part is that no fault codes were flagged up. Symptoms: The car idles VERY high and is pretty persistent about it. When I start the car, the idle is so rough that the engine cuts off. (DCT). It did not do this until I had recently synchronized the carbs and set idle to 1000-1100. While it’s normal for a parked car’s RPM to fluctuate between 50 and 100, a higher RPM than 300 indicates a problem — like a faulty spark plug, clogged fuel filter, or faulty throttle position sensor. BMW Garage: BMW Meets: Register: Today's Posts: After the car is warmed up from driving around I let it sit for about an hour or so and I come back to turn my car on and the engine is shaking and choking while the rpms rev up automatically to 2-3k rpm for a few seconds then comes down to a normal I have a 1986 6cyl BMW 325e and am having trouble with the idle. Tach drops down from idle to nearly 0 for less than a second and the engine stumbles like it will stall but ow to fix car idle issues (rpm up and down and idles rough and shakes). After that the car kept creeping up in idle speed until the surging started in again (1000-2000 rpm). Idle rough, EML comes on and goes in limp mode (doesn't accelerate but idles). I have a question regarding my X5 is acting weird recently: When i first start my engine, the rpm goes up and down and engine is shaking a little bit and then it comes back normal. Tach surges up about 500 rpm and back to idle about every 3 seconds. Some nodded members here have tried them and another brand that BMW is trying on some models is Edor brand. The range is between the idle line (sometimes below) to 1500 rpm. The bike’s idle speed will A few times I would get engine codes P1554 and P0012. That's the best advice I can give to u rn. Jump to Latest my revs go up and down, when i start the car in the morning A forum community dedicated to BMW owners and enthusiasts. (F10) N55 ~70k miles. 2005 bmw x3 3. It could be a gasket in need of replacement, it could be a crack in something like a (plastic) valve cover or hose. Hi Guys, I have BMW 325i Manual. The check engine light was never illuminated. A forum community dedicated to BMW owners and Had an idle problem on a e30 325e that was similar but only at idle; not while moving. I have no codes or anything and it doesn't stall. RPM goes up and then down. The RPMs will sit around 670 - 690 (ISTA shows the target idle speed is 680) and will bounce up and down 20 RPMs and have a slight shake that you can feel in the seat. One common issue that can arise is an erratic idle, where the engine RPMs fluctuate up and down. I'm still experiencing a stumbling idle. Search Fixya SOURCE: BMW 328 i 1997: Start up problems / Stuttering / Engine Light. RPM's bounce up and down resulting in a stall occasionally though on a couple of occasions the idle has dropped enough that my DCT put itself in neutral but the engine did not stall. Everything is perfect. No more rpm loss during idle. This only happens in the morning during the first warm up of the What To Do When RPM Goes Up and Down During Idle? There are a few things that you can do when your RPM goes up and down during idle. only happens when its first started in the morning. Come join the discussion about Bimmerfest events, production numbers, programming, performance, modifications, classifieds, troubleshooting A MK4 Golf with idling issues you don't say? check all the crankcase breather hoses for cracks, splits & collapsing or all three these are generally ported to inlet manifold vacuum so problems Every morning when I go to start my car it idle pretty rough for a few seconds then its fine. After a few miles it's driving lovely again, rock solid idle, the hesitation at 1500 rpm has gone. Thanks Ohiobikes, this process worked on mine. Might try putting some Techron in your tank next time you fill up and run through that thank, see if it cleans things up a bit. 247. 00 job at an BMW indy. 0l with 90k is starting to idle a little rough after starting in the mornings and idling at red lights. Doesn't seem to matter if engine is hot or cold. and I had to replace the ICV on the 525I once. I can bog it down by putting in first at stoplight and letting clutch out slightly. Mostly on cold starts but has done it when warm too. Idle jumps up to 1500 and down to 1000. but if i push the clutch in or take it out of gear while crusing with my lights on, then my idle jumps up Hey whats up everyone I have had my 03 2. Is your BMW revving up and down and cant hold a proper idle at 1000RPMs hello to everyone from a year ago I was the owner of the BMW E46 320D 150PS engine code M47N and since then I have a problem with it rough idle while idling as can be seen in the video To note when the car warms up and reaches operating temperature idle is not rough and everything works ok. The RPMs will jump up and down, for example, or they’ll fall below 600 RPM (or whatever is typical for your vehicle). It does as you say, slow to return to idle. I have also found that I need my idle mixture screws out at about 1. i was able to get it to run but just barely and surged badly at idle. It usually happens with the first start of the day. 2. Not sure what would happen if you dropped it into gear at that point. Lieutenant Colonel . When he reaches a stop sign or at an intersection, the tachometer bounces up and down between 500-1500 rpm's for 5-10 seconds then stalls out. When I did this the idle flattened out. Any possible solutions . A significant lack of power under 2000rpm then boost cutting in sharply and unevenly. No luck so far and I've finally decided to post up and ask. After it was at normal idle, tapped the throttle again and it went up to 2K rpm idle. Jul 04, 2008 • 2003 Acura RSX. I'm in love. The idle will fall and then jump up a bit then fall and back up again and so on. cant find any vacuum leaks Anybody had issues with idle revving or low speed surging? After car is drivento work or a ort distance and it sits for a few hours the idle after cranking moves between 800 to 12-1300 RPM. With these practices, you can keep your BMW running smoothly and avoid rough idle. Now I replaced the original battery with a regular battery, car starts fine and at cold it is ok but when I drive a Did you know that BMW dumped Bosch coils and went with Delphi brand. It had the mass air flow sensor, and cat sensors replaced about 1yr ago. Engine RPM can fluctuate at times This is one video out of a couple that I show how to solve your BMW E36 Idle Problem. but it only happens when my headlights are on. Me again. I've put some fuel injector cleaner in the fuel tank. For example, This up and down jumping of the idle happened once before (though that time it happened when the car was cold and stopped when it warmed up) and was fixed after simply replacing the idle air control valve with a used one from pick-n-pull. Attached is a sound clip. The tube just cracks because its plastic and that it was after 8-years since you have had your car. With the 330i file flashed however it liked to start up and rev all the way to 2k at first then settle down. When the car is cold, it can even get to the point where the revs get low enough to where it seems like the car is going to stall, and then it'll shoot up to 2500RPM to keep it running. S85 V10 requires two. N52 idle rev up on cold start. com is generated by its users. You also need to keep your intake system clean. If I get it on the road or hold it at 1500 rpm it sounds great, with no sputters or anything. When something like the A/C is turned on the extra load will slow the idle down so the electrical part of the ICV opens up more flow are to speed the idle back up. Lately however, it has gotten worse. Figured I would reach out to the bfc community before taking Intermittent surge when driving but at a red light. So I rolled all the windows down and waited for the idle to start moving again. Cold starts usually result in higher idle speed for 30 seconds or so, then down to 650, no shaking, etc. Its a 2006 750Li with 52,000 miles. but i just got this car and i'm just checkin it out. Inspected, cleaned with brake cleaner. While the idle stagger was way worse with the boost leak, I always had a minor idle fluctuation when coming to a stop It would typically just climb up and settle back down once, the boost leak made this happen over and over and the car would borderline stall before it revved up. Mostly this will happen when the weather is cold. Read about this on the F10 forum and BMW had a fix for it. If it isn't transimission try unplugging maf and drive it. If you’re experiencing this problem, you’re not alone. It's more noticeable during cold starts and as the car warms up, it calms down a bit but it's still there. fast forward i have changed all the fluids, all of vacuum lines, all rubber fuel lines. At idle there is sudden dip in the DME voltage supply value from 14. If you find any problem with the engine, try to fix it as soon as possible. changed the throttle Easy to start, but idle rough and exhaust smelled a bit rich. BMW Forums - Top. Has any one else had a problem like this. I recently changed the air filter, spark plugs, cleaned the MAF sensor and added fuel injection cleaner but no real changes. When I plugged it back in, and then gave it a tap on the throttle it went back to a normal idle. Please check the video attached. I have a 1999 328i and over the past few weeks I have noticed surging idle (500rpm to 1000rpm) that is intermittent (engine quickly rev's between the range indicated all A 'surging' idle with roughness is often indicative of a vacuum break somewhere. BMW PE | AR Catless DP | Alpina TCU Flash | Eibach Pro Kit | Custom TCKline Koni's | 19" M359 Wheels | DWS Tires. i let go of the hose and went inside then a few minutes later the idle went BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > car revving up and down on its own? (F1 engines really do idle at 9K. -Very rough idle, RPMs pulsing up and down like crazy-Stalls most of the time when shifted in gear-Red Oil Light when the car is switched ON, engine off E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. 5i z4 for about a year now. Engines with air pumps that inject air into the exhaust stream to warm up the cats will start a little high and settle down but not nearly the same as a car that’s using ignition So basically what happens is that whenever im at a stop and engine running idle, the rpm fluctuates up and down until eventually the engine goes off. Hello please i have e60 2007 and if i press the break pedal the engine RPM goes up and down and in a time he goes to turn off the car. During a cold I have a 2011 335i. The last 2 days at cold startup, the car would idle even rougher and die. For me, only once has it bumped up over 2k (usually up to 1700-1800 rpm briefly). Idle wasn't steady - it would surge up and down a little bit; Slight hesitation on acceleration; Once warm, idle better but would get fairly strong smell of fuel in the car when stopped at traffic lights; Economy down - 10 litres took me about 50km when I start the car, it idles at 3000rpm for a minute then drops to 700rpm, then it will idle up and down in park or at a stop light and sometimes it stalls. Any quick fixed on this or is it a 7 series thing. Idle surge was fixed by replacing the idle control valve(ICV) with a used one about three months back. But I noticed it idles very rough at startup. BMW Performance Hand Brake - BMWCCA Member. I've experienced similar occurences. The RPM dial weirdly "jumps" up and down from 500 to 700 RPM, and kind of starts shaking. what would make engine idle up and down, timing belt? - BMW 1986 3 Series question. Still I noted that the engine idle dipped under certain conditions to the point where the vehicle would shake. trying to see if this sounds familiar to anyone. Checked hose clamps, all secure. " 1. I cleared the errors and the next day the car was still idling bad. Why is my BMW idling so At idle on a warm engine, no fan or A/C, I'm getting a rough idle. My brother has been having this on going issue with BMW 325ci coupe/5 spd. I replaced the ICV with a brand new one which did not fix The high idle is a product of a lack of secondary air injection. Content on E46 Fanatics Forum is generated by its users. Our professionals are here to help make sure you find the answers you need to your questions and I need help bmw 318i e46 M43 engine unstable idling up and down and its going off cutting the engine. When I hold the accelerator at that position it just fluctuates like that, at times Bimmerforums is the preferred online BMW Forum and community for BMW owners. 35K subscribers in the e46 community. I have a 2012 X5 35i with an idle problem. E46 Fanatics Forum is not in It did this several times with the maf disconnected. I bought the Beisan vanos seals and had my mechanic put them in for about 500 dollars. Mostly when i start the car idle is ok but as soon i get into the gear or push the throttle even for a second when rpm go down it is starting to bounce again (sometimes it Car won't idle normally? Engine surges or revs up at idle? Mine used to as well, until I discovered what the problem was. Car is a 1997 328i, 4 door, 5 speed, with ASC+T, 168,000 miles. Everything is working perfectly since the update. Next step is to clear all codes and read again to see what is really going on here. A rough idle is considered an above average BMW E30 3 Series Idle Speed Troubleshooting One of the most common glitches on the BMW E30 3 Series is an erratic engine idle. It could be a gasket in need of replacement, it could be a crack in something like a (plastic) valve If there is a vacume leak, the idle is NOT likely fluctuating up and down. If your car is idling rough, though, it won’t feel smooth. I have also read that rough idle on start up is common on these cars. - ***But the most strange thing which I noticed. Slight stumbles and rough idle issues. With another SC with similar symptoms I opened up the AAV and cleaned it, although it looked already clean, and put it back together. You need to do a throttle adaptation- key in ignition; push start button once (without foot on brake so car doesn't start); push throttle pedal to the floor for about 30 seconds. M50B25 idle up and down, accelerating not smoth Hello, first sorry for my bad english but i try to say it directly and without mistakes. A lean mixture can be caused by a number of things; once is a vacuum leak. Come join the discussion about Bimmerfest events, production numbers, programming, performance, modifications, classifieds, troubleshooting, maintenance, and more! Bringing the BMW community together. I got errors on all 4 glow plugs about 100 miles ago. My cars fuel pump relay was replaced in Dec 2020 after a break down and got towed in. I also - BMW 1996 318 question. ) In all seriousness, SOME idle fluctuation is normal in the engines. Only occurs on morning start up and doesn't come back with subsequent start ups throughout the day. stinking like its flooding. to/2Pig My 745li is idling up and down at 1500 rpm. a bmw mac said its got to do with the coils, im Had the MAF sensor and idle control valve cleaned twice already. The idle goes up and down and keeps doing it. I did realize that my 525I idle control valve hummed while ignition was turned on. When idling, or very slow parking lot / drive-thru speeds, I frequently have a surging idle problem. 3. Everything is up and running, but at idle the car seems to stumble, with rpms dropping suddenly. So they can play around with it and find a happy idle RPM for your car which smooths out your idle. . Browse Categories Answer Questions . No codes? Then the first place to start is to replace the fuel breather it’s about $80. 5+ turns. I have a K&N cone air filter with the associated sensor. F40Model BMW 3-Series (E90 E92) Idle hiccups and then begins surging up and down. Technicians response: "Need idle adjustment with test plan connect battery charger, Short tested and found fault in system, Performed test plan for idle adjustment and quick cleared, Tested system again OK. when its idle, only revs goes up and down and stay on 800-900 rpm. At Bimmerforums, you will find technical how-to information maintenance specifics audio advice wheel and tire combinations and model specific details not found anywhere else. - DONE BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > Car starting very rough and RPM goes up and down Google Search Search Forums Hello everyone, i am very new bee in the forum. change the pcv valve its A good start is to snip 10mm off the ends of the rubber vacume hoses and refit them. Car revs up and down in park, idle. The orange light usually cuts on before stalling. Have had 3 3-series now - 01 330i Sport, 03 330iZHP, and current 07 335i coupe - never had rough idle on any of them. idle stuff buy a haynes or bentley repair manual (20-40 bucks) and get out your voltometer and check the ohm's and voltage resistance in these things throttle position switch ,air flow meter,and then check your feul pressure and your fuel pressure regulator . It can be not bad some mornings and then on other it shakes the car. Wont The rough idle only happens on very first start up of the day. A forum community dedicated to BMW owners and enthusiasts. The problem is that in the morning when i start it the idle is rough ( 600-1100 rpm ) up and down up and down But after 10 seconds the car idles perfect. Check your engine's rubber intake boot for cracks or tears, and inspect all of the air and vacuum lines. Answered by Matt in 1 hour 10 years ago. So my symptoms were a slightly rough idle on start up - clearing up after 15 secs or so - worst when cold. This will last around 2 or 4 minutes and then it will be ok after that. I shut it off and turned it back on and the SES light came back on. An idling 6 cylinder engine should be smooth as silk. It takes about 2 or 3 starts to get going with a roughy bouncy idle still occurring. However, if I drive it say to work, and then I drive it around noon, when I start it, the idle will be up and down between 600 and 1300 RPM. Like many, when I come to a stop and push the clutch in my RPM's dip to 500 then come up to normal idle (750-800). A 'surging' idle with roughness is often indicative of a vacuum break somewhere. Removed the ICV. Ran that tank down further,and filled up with Shell I have a 2011 3281 with about 900 miles on it. So, when I start it again, I have to immediately press on the gas for about 10 minutes until the engine warms up. today i talk to bmw engine specialist and he told me vanos has nothing to do with idle(or cold idle)issue. When I start the car with my foot on the brake, the rpms no longer jump up and down. Simply put, the vehicle cannot consistently maintain an idle. They get a bit loose and the vacume is lost. com Free App. 15 votes, 26 comments. During a cold start the engine up should have a faster idle which should be controlled by the signal to the ICV. This happens almost every time I start my car, whether the car is warm or not. Whenever i disconnect my O2 sensors before catalyst the idle is completely normal but car misfires while driving. In this video I will show tell and show you the most common idle issues. That appears to have been the problem the whole time. Yay =] However, the idle is still noticeably rough, so yesterday I attempted to get the idle control valve out to clean it, but found a stripped torx screw on the plate covering the valve. Probably happens once or twice a week. The first thing you should do is check your engine for any problems. The rpms do drop on the cold mornings and spike back up but again it doesn't stall but I'm pretty sure thats the vanos seals. Drives: 2011 335i xDrive My 61 plate F20 116i petrol has been having a lumpy idle on and off. So I tried the same thing again, but two different used IACVs changed nothing. Fitted a new Idle Control Valve (OEM Bosch unit) Fitted new CCV with all the main hoses (Original BMW Parts) Removed MAF Sensor - and it still runs the same There are NO fault codes showing on the diagnostics The issue is still there. The issue does Check the wiring loom under the glove compartment that feeds to the ECU, it could be a worn wire that is failing to carry the electrical current, i had this issue once and inspected the wiring loom and found one worn wire (replaced it, all good since) its a hectic thing to do but electrical wires are rarely inspected and they also need to be checked every once and a while Idles up and down with a soft pooping from the tail pipe Plisk when applying the brake it idles ups to 2 thousand to 1000 until the car stops then goes back to normal. Others have noted this and BMW says it is normal. 2004 BMW M54B30: Jet Black / STEP / Premium / Xenon Adaptive / Cold Weather Package / Dakota Black / Sunshades. lum loy nftvwc rudnt gitlw ubar ntcn yisqe jbs fazvukl