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carbon build up
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  1. General BMW Questions
    Hi everyone, I picked up a used 335xi with 89k miles on it less than a year ago. After about 6 months after I purchased it and drove about 15k miles on it, it started to start up and run rough in the mornings and then smooth out after it warmed up. I brought it to my mechanic who changed the...
  2. BMW Diesel Owners & Enthusiasts
    I've only owned my 2011 335d for 6 months. It started throwing cut engine power(limp mode) on dash. I brought it to a recommended BMW mechanic. They had it for 4 days trying to diagnose the problem. Today they said the mass airflow was sending signal to DDE, but DDE was not reading mass air...
  3. E90/E91/E92/E93 (2006 - 2013)
    Hi I am new to this forum so forgive me if this has been answered before... but I couldn't find a suitable answer anywhere. I have a e90 2010 bmw 320i I get very low consumption even when taking care to drive in the city. I live in the UK and currently I am getting around 22.7/23 mpg in...
  4. BMW Diesel Owners & Enthusiasts
    I had 1000 mile road trip planned for weekend so decided to get oil change and brakes done. SES light shows up on Yesterday afternoon. I thought must be usual thing it will reset on its on. I have been getting SES lights lately but it would reset itself in a day. No performance degrade. Anyways...
  5. BMW Diesel Owners & Enthusiasts
    New to the forum for posting, although have been a stalker for a some 5 years :). Have a year old F32 435D Xdrive with 18K miles on the clock so thought I would share my experience. Great car, love it, amazing balance of power, economy and every day car. Appreciate the 435D is not available in...
  6. F30 / F31 / F32 / F33 / F34 / F36 (2012 - current)
    New to the forum for posting, although have been a stalker for a some 5 years :). Have a year old F32 435D Xdrive with 18K miles on the clock so thought I would share my experience. Great car, love it, amazing balance of power, economy and every day car. Recently had the warning light come on...
  7. E90/E91/E92/E93 (2006 - 2013)
    Hey everyone, I have a set of four Bridgestone Blizzak LM-60s for sale. The dealer put them on my 335d while it was in for the dreaded CARBON BUILD UP issue. I asked that they NOT put the tires on until after the car was fixed, but they didn't listen. Now BMW is buying back my car and I am...
  8. BMW Diesel Owners & Enthusiasts
    Last month i purchased a 2009 335d with 45k miles. within the 30 day warranty period the car had a CEL come on and was sent by the repair center at the national chain where i bought the car to the BMW dealer for diagnosis. Long story short the carbon buildup has been descaled and the car will be...
  9. 7 Series - E65 / E66 (2002 - 2008)
    https://www.youtube.com/watch?v=zMJeXDrrIK8 AGA is at it again, developing another custom tool saving you thousands. You probably recognizance AGA's name from other innovative BMW solutions such as the AGA N62 Valve Stem Seal Tool Kit and AGA N62 Cooling Pipe. All German Autos is back with a...
  10. E63 / E64 6 Series (2004 - 2010)
    https://www.youtube.com/watch?v=zMJeXDrrIK8 AGA is at it again, developing another custom tool saving you thousands. You probably recognizance AGA's name from other innovative BMW solutions such as the AGA N62 Valve Stem Seal Tool Kit and AGA N62 Cooling Pipe. All German Autos is back with a...
  11. E90/E91/E92/E93 (2006 - 2013)
    Hey All!! I hope everyone is having a better weekend than I. I have an 07' BMW 335xi that my wife drives which led me to buy the 2009 335d. I bought it from KG Motors in Mason Ohio I drove it to a friend who works near by at a garage, and is a VW guy but has scan tool and can scan BMW's. The...
  12. E60 / E61 (2004 - 2010)
    Am having issues regarding fuel injectors. BMW has agreed to replace hpfp, cats, but not fuel injectors. I have replaced 3 injectors in the last 14 months. Any comments? This seems to be a common issue, caused by faulty parts. I don't understand why BMW is replacing fuel injectors due to...
  13. E60 / E61 (2004 - 2010)
    I have a 2010 535i xDrive which is my only car and I drive a lot (35mi round trip each day to work) also drive across the east coast a lot. This is my baby, 88k mi, no major issues yet (knock on wood). I recently took it to BMW for a service and oil change. As soon as I left, I got a check...
  14. E34 (1989 - 1995)
    I have a problem. I just bought a 1995 525i about 5 months ago. The car drives great,and I couldn't be happier. But now I have to get it smogged. It has failed twice,and the mech. Said it was due to having excessive carbon build up! So, I have purchased a can of Seafoam to do the job. Has anyone...
  15. E60 / E61 (2004 - 2010)
    I thought I was initial stages of HPFP failure...See my other thread: http://www.bimmerfest.com/forums/showthread.php?t=495552. There was some good tech talk in that thread. Car has 60,000 miles logged. I had the local BMW perform their 'fuel injection service" where they chemically decarbon...
  16. E39 (1997 - 2003)
    I was talking to a classmate at school a few days ago, and they were talking about their tuner cars and their upgrades (Evo VIII, Turbo eclipse, etc...), and they said that putting an oil catch can would solve the carbon build up problem in my e39 m5. Is there any truth to that? It seems if the...
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