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Brake Light Switch Failure May Cause ESP/BAS Warning Lights on Mercedes-Benz E430 4MATIC

Problem Description and Possible Solution

The ESP and BAS warning lights may illuminate due to a failed brake light switch. Replacement of the failed switch should correct this concern.

Problem Data
RepairPal Verified
Average mileage: 110,333 (86,000–135,000)
3 model years affected: 2000, 2001, 2002
7 people reported this problem
Viewing 1 - 3 of 3 comments
BAS/ESP warning illuminates when brake is depressed. Can cause brake lights to be inop or work incorrectly
My brake lamp switch has failed 3 times in the last 5 years. The upper brake light comes on but will not turn off.
About once a year I have to replace this part. Very frustrating... Cruise control stops working and brake lights are always on.