1998 BMW 740 ELECTRICAL ISSUES ON BMW

  • Tiny
  • bdader
  • 1998 BMW 740

Electrical problem
1998 BMW 740 V8 Two Wheel Drive Automatic 82000 miles

I have a 1998 BMW 740il with approximately 82,000 miles. In the last month the car has developed an issue with the interior electrical functions. This problem comes at goes with no apparent reason and the actual issues change.

At the first occurrence the turn signal indicator did not work although the outside turn signals did work. The radio stopped working as did the electric seats. The issues went away the following day.

A few days ago the turn signals did the same thing but the radio worked although it would not change stations.

I spoke with the BMW service tech at the dealer would told me there is some 60 miles of wiring in the car and there was most likely a short somewhere. He did not even want to work on the car.

I do have a good mechanic who has worked on my cars for years and I have ordered a wiring manual for him. Any ideas of where he can start?

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Friday, April 11th, 2008 AT 6:47 AM

1 Reply

  • Tiny
  • Dr. Hagerty
  • Expert
  • 9,717 posts

The issue you are up against is possibly due to a faulty Ignition switch, I have replaced several of these (to say the least) and they will cause the issues you are experiencing. The part# is 61-32-6-901-962. Repost if more assistance is required.

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Friday, April 11th, 2008 AT 4:45 PM

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