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.
Transmission May Leak Fluid and Damage Control Module on Mercedes-Benz SLK230
Average mileage: 111,072 (58,200–165,000)
13 people reported this problem
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Transmission fluid leak through the electronic switch connection into the transmission case.
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.
Car will not shift out of park or change grears
Began to not go into higj gears upon take off. Stopped turned car off no problem. Then began to not go through past second maybe 3rd gear. Had car towed 2 times because would not start. Last timewould not come out of park so i ised ink pen and slid down beside gear stick, that moved freely then.dtove car and it will mot change gears at all .comes out of park initially, bit wont go back past neutral when you park it...without use of ink pen again to move to park.didn't drive all winter, moved out of garage to check and try to get ready for summer and seen fluidon floor. Not sure yet if power steering because I had a small leak prior anyway, and it is red color. Will clearing codes fix problem?
Car was in drive, going down street. Hesitate a little bit, then fine turned off after got home, went to leave and neutral is drive and no reverse.
Leaking from Control Module