Car Problem Reports

Mercedes-Benz S500 Wire Connector on Transmission May Leak Fluid and Damage Control Module

Mercedes-Benz S500 Problem
9 Reports
Me Too

Model Years Affected: 2000, 2001, 2002, 2003, 2004, 2005

Average Mileage: 82,333 mi (54,000 mi - 118,000 mi)


The electrical connector at the automatic transmission may leak fluid. Over time leaking fluid could migrate through the wiring harness and damage the transmission control module. If that happens a new harness and control module may be necessary to correct the problem.

  •  Rookie

    The shop replace the electrical connector and the car is leaking again. They are still trying to figure this out.

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  •  Technician

    This was a $15 rubber grommet. My indy shop did not even charge labor, they said it was so easy. It caused me no performance problems or other damage, but I did get it fixed within days of noticing a drip in the driveway. I've gone almost 40,000 miles since with no problems.

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