Mercedes-Benz S430 Problem Report
Mercedes-Benz S430 Transmission May Leak Fluid and Damage Control Module
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.
I had the same problem with the TCM. I had the conductor plate replaced and the TCM was cleaned of all oil. After that, the transmission worked fine but the ESP, ABS, SRS, and BAS lights continue to stay on. The vehicle is in the shop now (again) to correct this problem with the malfunctions. - Visitor
Brought car in for service for another issue and mechanic told me transmission was leaking and traveled through wiring harness to control module. Leaking part was replaced, control module was cleaned. - Visitor
Just had the transmission control module replaced by the dealer. Wasn't cheap, $955.00 including parts and labor. - Visitor
leaking transmission by the plug,so now i am going to change fluid along with the plug when i purchase it - Visitor
TRANSMISSION IS LEAKING FLUID GOT VEHICLE DIAGNOSE TO BE TOLD THAT CONNECTOR IS LEAKING HAVING IT FIX - KNOWING ITS GONNA BE EXPENSIVE - home1964
I have the same problem and car has been in the shop for over 6 weeks. Really - Visitor
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