1984 BMW 528 Wipers Run Constantly

BMW 528
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DORATHEEXPLORER
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  • 46 POSTS
I have an 84 528e with wipers that are posessed. They go constant, even with the wiper switch off, unless I pull out the relay. Then dead stop. Any suggestions? Also, the gas gauge doesn't work & the miles per gallon gauge goes crazy, (constantly moving back & forth).
May 11, 2006 at 8:48 AM
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2CARPRO JACK
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  • 11,533 POSTS
sounds like you need a good electrical guy
Sep 12, 2006 at 5:46 AM
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DORATHEEXPLORER
  • ✓Experienced Mechanic
  • 46 POSTS
DUH! If you don't have an answer than no answer is better. Thanks for wasting my time.
Sep 12, 2006 at 5:53 AM
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THIS IS MIKE
  • ✓Experienced Mechanic
  • 686 POSTS
Your wiper control module could be bad, but with the other problems you describe the wiring loom should be checked closely for broken or worn wires. It may be a poor grounding problem, so check that too.
Dec 7, 2006 at 3:25 PM

Suggested Repair

Check the wiper control module, inspect the wiring loom for broken or worn wires, and verify the grounds.

Conversation Summary

The owner of a 1984 BMW 528e reported wipers that run constantly even with the switch off and stop only when the relay is removed. The fuel gauge does not work, and the miles-per-gallon gauge moves erratically. One reply offered no diagnosis. Another suggested the wiper control module may be faulty and recommended closely checking the wiring loom for broken or worn wires and checking for a poor ground.

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