ON that car & "most" MB's after 1998, the interior electronics are a network of computers.

Each & every operation are computers signaling each other with commands.
You have a "common" problem! ONE of the computers on the network is sending BAD info to all of the other computers.

There can be several ways to diagnosis that problem. USING a dedicated MB scanner
is one way to find the culprit.

Also checking the interior CAN voltages will shed light on the problem.

MOST of the time the problem is caused by one of the door control modules...most likely is the Right REAR.

ARE you handy with a VOM?

__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
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190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
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