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Old 05-29-2002, 06:29 PM
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dtanesq dtanesq is offline
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Join Date: Oct 2000
Location: Northern California/Western Washington
Posts: 386
Don't know if this will help, but I had the same problem with a 1986 300E. Same chassis, I figure the same relay box. Replacing the diode was the fix. On the 300E, the diode is a little guy at the very back of a box of relays aft of the fuse box on the driver's side of the engine compartment. It's right up against the firewall next to the hood hinge, as I recall. The part is inexpensive and easy to replace (if you have small fingers). I dropped my failed one between the relay box and the firewall and never saw it again.

2003 Dodge Durango SLT
2002 BMW E39 530i Sport
1988 Mercedes 300TE
2003 Chevrolet Suburban
1999 E430
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