Mercedes C220 CDI Sport WDB203 2006 Auto




wiring harness. Some informed reading. It requires replacing the O ring.
http://www.installuniversity.com/mb/...on-o-ring.html
If it has wicked it's way to the end of the cable you may have some fluid in the TCU under the right side floor. Eventually the TCU will blow if it's full of oil.
Many threads on this.
Search on trans fluid in TCU etc.



