The metal base that the rear lamps snap into are known to go bad due to excess heat, causing a bulb warning light.

This is very common in the W210 chassis, and the only fix is to replace the rear taillamp assemblies.

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Paul S.

2001 E430, Bourdeaux Red, Oyster interior.
79,200 miles.

1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".