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  1. Tachometer is off by 700 rpm, but still functioning

    General E46 Forum
    Hello. The RPM needle is off by about 700 rpm in my car. However it is still functioning. By functioning i mean the needle moves up and down with the revs of the engine. I have ran the test 2 on the instrument cluster. The needle moved all the way from 700 to almost touching the MPG needs on...
  2. Rev Problems - HELP!

    General E46 Forum
    I have a 2002 320i with a mechanical/technical problem that has yet to be properly diagnosed (despite significant effort). Symptoms are as follows: - While driving with RPM between approximately 1500 and 2500 the tachometer will bounce up and down between approximately 1200 and 2000 RPM. This...