Car Problem Reports

Mercedes-Benz SLK230 Wire Connector on Transmission May Leak Fluid and Damage Control Module

Mercedes-Benz SLK230 Problem
10 Reports
Me Too

Model Years Affected: 1998, 1999, 2000, 2001, 2002, 2003, 2004

Average Mileage: 91,733 mi (58,200 mi - 120,000 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.

  • Visitor, , 97,000 mi

    Screw that holds electrical connector in place on the transmission broke off, had to replace the electrical board inside transmission to stop leak, now after a few months the transmission has blown fuse again and smoke came from TCM, now transmission does not shift and speedometer does not work. Replaced fuses but nothing happens was told I had to replace TCM and Harness.

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  • Visitor, , 58,200 mi

    Transmission fluid leak through the electronic switch connection into the transmission case.

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  • Visitor, , 120,000 mi

    Leaking from Control Module

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