wiper motor 300E

1992 MERCEDES BENZ 300E
128,000 MILES • 6 CYL • 2WD • AUTOMATIC
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TUNEDUDE
  • MEMBER
  • 2 POSTS
wiper motor stopped and started smoking. Replaced with another motor, but wiper starts and stops after 2 inches... double clicking noise near fuse box
Jan 23, 2011 at 8:47 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
Check near the fuse box for a bad relay. Chances are when the original motor burned up, it damaged the relay.
Jan 24, 2011 at 5:19 PM
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TUNEDUDE
  • MEMBER
  • 2 POSTS
could not locate a relay near fusebox... are you sure one exists for this car? I do know that an overload relay is located in between the computer and wiper motor, but why would I hear a clicking near the fuse box? Also, the wiper motor DOES work without being connected to wiper arm. To be sure I had everything lined up, I ran the motor for one cycle and made sure I installed the arm while the wiper was in the "off" position.
Jan 25, 2011 at 10:26 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,240 POSTS
I believe the rellay you are hearing is the delay. Locate where the noise is coming from near the fuse box. If the motor is working, that is a good thing.
Jan 25, 2011 at 11:24 AM
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