Car Problem Reports

Mercedes-Benz CLK320 Wire Connector on Transmission May Leak Fluid and Damage Control Module

Mercedes-Benz CLK320 Problem
13 Reports
Me Too

Model Years Affected: 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005

Average Mileage: 79,623 mi (38,000 mi - 114,000 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, , 38,000 mi

    module leaked as indicated by transmission fluid on the ground. replaced module with updated rubber o rings.

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  • Visitor, , 88,000 mi

    Same happened to me... sounds like this should be a recall item with SO many reporting it! Got a great used Transmission computer from a Benz mechanic in Memphis... only $78 and clean! Don't pay $900-$1000!

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  • Visitor, , 66,000 mi

    Trasmission fluid pouring out tof the bottom

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  • Visitor, , 114,000 mi

    The transmission shifts sluggishly from second to third gear when in Drive. Down shifting is also very sluggish. Tech at my repair shop discovered that the wire harness had the fluid in it, cleaned it all up and did a transmission service to replace the fluid, now we are waiting on the cost for the control unit. Hope that fixes the issue.

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  • Visitor, , 92,115 mi

    Noticed small leaks under transmission pan. Connector was leaking. Mechanic informed me that there was a TSB put out by MB.

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