Transmission May Leak Fluid and Damage Control Module on Mercedes-Benz ML430

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.

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Average mileage: 143,000 (136,000–150,000)
3 model years affected: 1999, 2000, 2001
6 people reported this problem
3 people shared problem details
My car won't go into gear
I have a transmission fluid leak as well, I was told it was around the pan.
Oil leaked from a faulty seal & wicked into the control module. Could not get a rebuilt part from MB, so installed a new one. Price tag: $1900.00. Also have very dangerous issue with BAS/ESB system. Looks like the Navi unit has a short, causing the benz to think it is encountering a hazardous road condition. It brakes and swerves itself, which is really bad when you are in traffic. Frightening.
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