1995 BMW 840 COMPUTER SYSTEM ON CONSOLE

  • Tiny
  • greggabert87
  • 1995 BMW 840

Computer problem
1995 BMW 840 V8 Two Wheel Drive Automatic 106000 miles

I have a 1995 840Ci BMW and on the console it shows 3 red lights on the computer system display. I have tried pulling the battery out and nothing. I have heard that it might just be locked out, but the dealer wants 2,500 pounds to set I up on there computer.

Tuesday, September 29th, 2009 AT 1:30 PM

5 Answers

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

2500? Are you kidding, for what?

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Tuesday, September 29th, 2009 AT 10:13 PM
  • Tiny
  • greggabert87
  • Member

2500 for a simple diagnostic test against the internal computer and system settings. It was working fine one day and the next the 3 red light were on and it would work. Someone I was talking to thinks that it could be the immobiliser system just being locked.

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Wednesday, September 30th, 2009 AT 12:13 PM
  • Tiny
  • Dr. Hagerty
  • Expert
  • 9,706 posts

I hope you can excuse my shock at 2500 for what is basically less than 15 minutes of set up and scanning. I would try to avoid that facility if possible, just an opinion. The E-31 cars are few and far between so let me do some research and get back to you. Also, can you send a photograph of the dash during the fault? It would be helpful.

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Wednesday, September 30th, 2009 AT 9:31 PM
  • Tiny
  • greggabert87
  • Member

Here is the pictures of the console and the actual computer display showing the three red lights. These lights stay on even with the car off and locked.


http://www.2carpros.com/forum/automotive_pictures/415399_CIMG2096_1.jpg



http://www.2carpros.com/forum/automotive_pictures/415399_CIMG2097_1.jpg

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Thursday, October 1st, 2009 AT 7:57 AM
  • Tiny
  • Dr. Hagerty
  • Expert
  • 9,706 posts

This may well be an internal fault in the trip computer, I am still researching the issue and will return soon.

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Friday, October 2nd, 2009 AT 11:32 PM

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