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BMW 740IL Wiper Issue

Wiper issue, 1999 BMW 740IL:

Wiper intermittently quit working and then went out completely; This is what I have done so far and non of these have fixed the problem:
1. replaced the wiper switch in the steering column;
2. checked all the fuses, they were all good;
3. replaced 2 relay units; (this is all under the advice of BMW mechanic)
4. replaced the motor, checked voltage to the motor—have no 12V going to the motor, but have 5V power leg to maintain zero position on the motor drive;
5. replaced the main module that controls: the wipers, power seats, power windows, steering column, heated seats, ect.
6. pulled passenger side seat, checked 2 main fuses and they were OK.

Could you shed some light on this???

Posted by on

  • 3 more comments 
  • laleyracing Jul 02, 2008

    im trying to locate the wiper motor on my 1996 bmw 740il.

  • Anonymous Feb 24, 2009


  • Anonymous Mar 24, 2014

    how to replace the lkm

  • Anonymous Mar 27, 2014

    Changed motor out now wipers won't work

  • Anonymous Mar 31, 2014

    please help with any ideas



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Try checking for a short to power on ur 12 volt comming into motor also check for a good ground at the plug for ur wiper motor

Posted on Jun 17, 2008


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