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  1. E36 (1991 - 1999)
    Rough/low idle on warm engine - PLEASE help 1996 318i M44 - No codes I replaced lots of vacuum hoses (after smoke test), valve cover gasket, spark plugs, cleaned then replaced icv, cleaned battery terminals, replaced ccv, motor mounts, precat o2 sensor, and got a “new” used maf. The car...
  2. E36 (1991 - 1999)
    I bought my manual 1996 318i (M44 engine) less than a month ago and immediately started to have problems with it having a rough idle. The idle was super violent, shaking the whole car, and sometimes stalling after revving it and/or coasting to a stop in neutral. I replaced a bunch of vacuum...
  3. E46 (1999 - 2006)
    Hey everyone! For the last year I've had a problem where when fully warmed up - my car revs itself from normal idle to exactly 1700rpm, and then comes back to normal 750-ish. And that happens every 2 or so minutes. I had Valvetronic turned off, because the eccentric shaft sensor was broken. And...
  4. E36 (1991 - 1999)
    So I made a post here a few days ago but this one is an update. I purchased a manual 96' 318i convertible (m44 engine), and it's had a super rough idle since I've had it. It sounds like it's cammed and it's a rhythmic feeling like a misfire. I don't have any codes popping up other than P0130...
  5. E46 (1999 - 2006)
    Hey everyone! I've compiled all of my currently present problems on my 2001 318ti engine in this one post, hoping maybe one problem will help with diagnosing the other. So here are all of them: 1) Engine occasionally revs up to 1700RPM and then instantly drops down to normal (700-750). It...
  6. E46 M3 (2001-2006)
    Okay, i know there’s tons of threads on this already but i’ve read all of them and still have no gotten a definite answer or reason why it’s happening. Here’s a little over view. Basically the idle is really choppy when i first cold start it. It’s jump to 1200 at first start and then after a few...
  7. 3 Series & 4 Series
    I own an auto 2002 325ci with 120k. Bought the car 3 months ago and ever since ive notice bad rpm surges when barely pressing the gas, windows, AC. Ontop of a noticeable rough idle. Today I had put it in reverse and the car literally stalled itself. Car starts up just fine and drives well...
  8. E63 / E64 6 Series (2004 - 2010)
    So just by the title another N52 idle problem Car just started acting wierd as in idle HICCUPS 30 RPM ⬇ every 3 seconds. Feels just like misfire but with no codes stored. Actions taken: Replaced 6 Spark Plugs , 6 Ignitions Coils ...
  9. E90/E91/E92/E93 (2006 - 2013)
    Hey everyone. My car got rear ended a couple weeks ago and I took my car to a BMW body shop and I just picked it up. It was a 2008 335i with zero problems, zero engine codes, absolutely nothing wrong with the car, I take very good care of it. When I picked it up, all of a sudden popped up...
  10. General BMW Questions
    Hey everyone. My car got rear ended a couple weeks ago and I took my car to a BMW body shop and I just picked it up. It was a 2008 335i with zero problems, zero engine codes, absolutely nothing wrong with the car, I take very good care of it. When I picked it up, all of a sudden popped up...
  11. F10 / F11 (2011 - 2016)
    Hi, i've been experiencing vibrations throughout the whole car when I turn off the A/C. The engine is the 4 cylinder turbo n20. The rpms drop to about 700 and the car starts vibrating. I have replaced the motor mounts, spark plugs, belts, also was thinking my alternator going bad, but it has...
  12. E36 (1991 - 1999)
    I replaced the fuel pump recently after the previous one failed on me while driving on the highway. For the ~1hr that I was able to drive around with that pump, the car ran perfectly. Lambda looked great and it felt excellent. I replaced the pump and attempted to go for a drive, but the fuel...
  13. E46 (1999 - 2006)
    My BMW has a lot of problems but this is a new one. I have a 2004 bmw 325i and it has a intermittent rough idle, but that’s a known problem. My new issue is It was doing the rough idle, I bump started it in 4th to fix it then I went from 4th to 3rd and it completely freaked out. EML light came...
  14. E90/E91/E92/E93 (2006 - 2013)
    So earlier today I went into a car wash that was touchless. The rear garage door to the wash bay closes and it gets really steamy in there. I noticed, about 3 minutes into the wash, that my engine rpm was jumping up and down between 600 and about 1500 rpm sporadically. It was not chaotic but it...
  15. X5 E70 (2007 - 2013)
    First to tell thanks to everyone who want help and all members on forum, am newbie and have big bored problem :) Well i have bmw x5 e70 xdrive30i with n52k engine, and generally i replaced all parts which need on some km, when i replaced pcv hose, new valve cover, new vanos soleonids(piersburg...
  16. E36 M3 (1995-1999)
    Hello! First post. My name is Lucy and recently I have come into possession of a 95 E36 M3 with about 145k miles. The car was well taken care of and had all general maintenance done. The car has always pulsated RPMs at idle but has gotten very bad recently where sometimes it dies when the...
  17. E46 (1999 - 2006)
    Hello Mates, need your experience and support! Let me get straight to the point: I own a 330ci, 2001 pre-LCI. 230K km on the odometer. 5 speed auto. trans. After cold start, when at a dead stop and when the gear is at "Drive", my idle hesitates between 400-800 rpms. When I put the gear to...
  18. F10 / F11 (2011 - 2016)
    Hey guys, I have 2015 BMW 528i with 66k miles. About 2 months ago I went to turn the car on and when I put it in drive the car started vibrating very noticeably it freaked me out. No check engine light. It doesn’t vibrate a lot when driving but if the car is cold it will vibrate at idle. When...
  19. E39 (1997 - 2003)
    Hello everybody, I recently bought a 1998 BMW E39 520i The car has a problem where is idles unstable, when I start it up it idles fine at 700-750 rpm, an keeps on doing so as long as it's cold, however when I shift to nutral when the car is hot it fluctuates between 1200-1500rpm until I quickly...
  20. E90/E91/E92/E93 (2006 - 2013)
    Video of noise here: It was low on coolant so I filled up the reservoir a bit under the max. I drove it around after fixing an electrical problem and everything seemed fine. It wasn't making this noise when it started up, but it has been sitting for a few months. After about 10 minutes of...
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