Have 3 suspect cars with the same potential problem. I think it would be very nice if Mercedes took care of these issues. I know all three have the original wiring and no problems so far, and I check them on a regular basis.

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95 SL500 Smoke Silver, Parchment 64K
07 E350 4matic Station Wagon White 34K
02 E320 4Matic Silver/grey 80K
05 F150 Silver 44K