Car Problem Reports

Mercedes-Benz S600 Wire Connector on Transmission May Leak Fluid and Damage Control Module

Mercedes-Benz S600 Problem
12 Reports
Me Too

Model Years Affected: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010


The electrical connector at the automatic transmission may leak fluid into the wiring harness. If not repaired, the oil will migrate through the wiring harness and damage the transmission control module. At that point, a new harness and control module may be necessary to correct this problem.

  • Visitor, , 112,000 mi

    Replaced gasket, conector, cleaned TCU with electric cleaner

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  • This problem happened three times. The transmission control unit filled with fluid from leaking ETC connector.
    The Solution: They replaced control unit, locking pin, ETC connector plug, pilot bushing, trans.fluid

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