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poor performance

  1. Another electrical or low idle issue?

    General E46 Forum
    Hi guys i know there has been alot of threads about alot of these topics but this issue is just making me want to pull my hair out. Car - 2002 320i M-Sport Mileage - 68k or 110,000 kilometers Automatic 3rd Aftermarket Stereo and it had been in the car for a long time before these issues...
  2. 328ci poor performance and rough idle/acceleration

    Driveline, Engine & DME Tuning
    Hi all I am new to E46Fanatics and to start this threat on a positive note - I am loving my 1999 328ci BMW e46! However, I am experiencing a heart breaking problem... Recently the car started to have a shake/shudder feeling during idle and the shake/shudder continued into acceleration. Also...