1991 BMW 850 NOT IDELING RIGHT

  • Tiny
  • eagleonee
  • 1991 BMW 850

Engine Performance problem
1991 BMW 850 V12 Two Wheel Drive Automatic

The acs light comes on and the check eng light comes on the car also the car sometimes reves up and jumps fowered and the rpms reve below 1 way below when the car is not running right. I changed the 02 and mass airflow scencers that is what is coming up on computer

Friday, May 8th, 2009 AT 4:49 PM

1 Answer

  • Tiny
  • Dr. Hagerty
  • Expert
  • 9,706 posts

Do you have a BMW mechanic for your 850? The reason I ask is that the M70 motor is not easy to repair and without the correct tools, you are not likely to have a successful repair, and throwing $$$ at cars is not always good.

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Saturday, May 9th, 2009 AT 4:48 PM

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