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  1. F80/F82/F83 M3 and M4 (2015 - Current)
    Hello guys, I have been experiencing a rough idle. The issue started 2 days after I tuned my car to bootmod OTS stage 2 map. I have then flashed back to stock and the issue is still there. I have checked if there is any error codes or faults. Nothing is there (apart from the O2 sensor error...
  2. E90/E91/E92/E93 (2006 - 2013)
    Hi everyone, my e90 (2008 328i) was giving me the exhaust solenoid stuck code, so I decided to service both the exhaust and intake and just replace them. I swapped them out with new ones and gave it an oil change, started the car and the car would have a lot of rpm jolts and serges. I then...
  3. 3 Series & 4 Series
    08 BMW 328i - Crabks and idles high, then evens out after few seconds. Here's codes I'm getting
  4. E60 / E61 (2004 - 2010)
    Hi everyone, 2006 BMW 525i E60/N52 A few minutes after warm up, and then anytime I am at a stop while driving, my idle drops from ~900rpm to ~600rpm and the car shakes as if it will lead to a stall. But it never stalls, it just hangs there and vibrates loudly the whole car. I purchased this...
  5. E90/E91/E92/E93 (2006 - 2013)
    Hello, my e90 has some serious problems I've been trying to fix for months now. IF YOU WANT TO SKIP DIRECTLY TO MY QUESTION YOU CAN GO DIRECTLY TO THE NEXT PARAGRAPH The car throws no codes other than a VERY rare "DME MIXTURE CONTROL" code. The car stumbles, cuts off, has really choppy...
  6. E60 / E61 (2004 - 2010)
    What happens when you plug in the wrong VANOS Solenoid? e.g. plug in the intake vanos solenoid wire into the exhaust vanos solenoid and vice-versa.
  7. E60 / E61 (2004 - 2010)
    Good day to you all, I am the proud (but a bit sad) owner of a 2007 BMW 525i with a N52 engine. I bought it used (my first car) with a couple of minor issues but so far it has carried me 40,000+ miles. Back in February, I repaired a small leak coming from the coolant thermostat. A month later...
  8. F30 / F31 / F32 / F33 / F34 / F36 (2012 - current)
    So I have read about the 'adaptive transmission reset' on the E90 models... wondering if the F30s have a similar reset function. I have noticed that my 328 shifts rough from 1st to 2nd when the car is cold and I am pulling away at low speeds. It is super annoying and it is almost like the...
  9. E36 (1991 - 1999)
    Bought a VERY rought e36 a while ago and had it running decent for a bit until an injector lost its cap/oring and i decided to get all new injectors, as id had injector issues earlier on. Got the car back together and it starts and runs, but idles rough and spits a little gas out of the...
  10. 7 Series - F01 / F02 / F03 / F04 (2008 - 2015)
    This is my first ever deisel car, its a F02 730LD. It seems a bit rough in the really cold mornings in terms of shifting gears and also the engine stalled once it was very cold (subzero). Drives fine with no issues otherwise. Also the drive smoothens out after a few minutes of the car running...
  11. E36 (1991 - 1999)
    I've got an issue with my bimmer where it likes to run rough around 2500+ RPMs. It will run rough and performance sucks when it does, making it difficult to get up to speed in any gear without shifting very early. I've asked mechanics and they've told me to check the O2 Sensor, check for vacuum...
  12. 7 Series - E65 / E66 (2002 - 2008)
    //////Solved!////// Read post #15 2007 750i 84k ***I posted this in bimmer forums, but I can never get a response. I believe you guys can help me out.****** I've search hundreds of threads and can't seem to find a clear answer. Car just randomly started to idle rough as I pulled into my...
  13. E60 / E61 (2004 - 2010)
    My wife's 535xi was running terrible, and prior to that she mentioned some message about low battery. However the car ran perfect, started without hesitation, so was not concerned about it. But two weeks later, car ran terrible, chugging like a diesel if you really pushed it. I had someone put...
  14. E39 (1997 - 2003)
    Hi guys, A friend of mine recently bought a 528i touring for an absolute steal. It has a few issues but aside is in decent condition. He plans on using the vehicle as a winter beater of sorts / hauler for parts and tools etc. What issue is the car having? - Sometimes it drives and idles...
  15. E90/E91/E92/E93 (2006 - 2013)
    Hello BMW world, I have a 2008 335xi 93K miles and I have recently moved from Texas to Philadelphia and needless to say my car is definitely reacting to the climate change. The low temperature morning starts have really accentuated some issues with my engine. When i start the car in the morning...
  16. E39 (1997 - 2003)
    So I have the 1998 540i with the pre-vanos m62 engine. It runs fine and idles smoothly until I do a hard acceleration. After that, it idles very rough and it drives very rough. What could it be? Ccv? Maf? Icv? Also about a week ago the check engine light came on during a hard acceleration...
  17. E46 (1999 - 2006)
    So, here is my scenario: I recently had my PVC valve / hoses replaced, also the coolant reservoir, and upper hose replaced (due to coolant leak). The next day after replacing those parts, the coolant leak was still leaking! So, I took my vehicle back to the mechanic, and he stated the leak was...
  18. E60 / E61 (2004 - 2010)
    Hi guy, this is my first time on the forum and needed some help. My car recently started letting off a very light white cloud of smoke on startup. About a month later I changed my spark plugs and noticed oil on most of the ones I pulled out, than decided to take a closer look at the engine and...
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