Car Problem Reports

Mercedes-Benz E320 Brake Light Switch Failure May Cause ESP/BAS Warning Lights

Mercedes-Benz E320 Problem
36 Reports
Me Too

Model Years Affected: 1996, 1997, 1998, 1999, 2000, 2001, 2002

Average Mileage: 124,838 mi (15,000 mi - 340,000 mi)


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

  • Visitor, , 81,000 mi

    Mercedes-Benz E320 : Brake Light Switch Failure May Cause ESP/BAS Warning Lights

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  • Visitor, , 144,252 mi

    ESP / BAS / ABS warning lights come on. Brake lights work intermittently.

    Shop replace brake light switch and relay. Checked all bulbs / connections. Fixed the problem for 10 miles, then the same issue came back.

    Returned to shop. They had the car for 2 days. No warning lights came on and the brake lights worked fine. 10 miles from the shop, the warning lights came on again and brake lights didn't work.

    I replaced the brake light switch as second time, but that did not make any difference. Problem still comes and goes.

    Going back to shop again.

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  • Visitor, , 95,000 mi

    Every year or so ,without fail I need to replace to brake light switch. The Bas/Esp light goes on and will want to lock out the transmission shifter. I have owned my car for 7 years and have replaced the switch 6 times. It is not a difficult DIY repair and takes about 20 minutes to complete. The switch is $25 and the dealer will charge you about $150 for labor to install it.

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  • Visitor, , 110,115 mi

    Turn on ignition, step on break and get lamp defective, BAS, ESP, ABS malfunction messages.

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  •  Rookie

    warning scared the crap out of me. 14 dollar part.

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  • Visitor, , 117,000 mi

    Brake light indicator. replaced switch worked ok for a few days.. i have noticed that after warming up the car, then letting it cool and problem disappears for the rest of that day them, next am, whammo! same problem this feels like groundhog day! ESP and BAS light warnings accompany this odd phenom! Makes me want to brn the car!!

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  • Visitor, , 23,000 mi

    failed 6 times also new style faided 2 x

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  • Visitor, , 110,000 mi

    I am in the process of having my second one replaced. Shift would not move out of Park to Reverse. Called AAA for a tow and knowledgeable tow truck driver showed how to take a credit card, pop up the wood-look panel on the shifter and there is an over-ride that you can access with a straw or other slender device, and you can override the 'park' and at least get to the shop without a tow. Be careful driving, however, as your brake lights are probably not working until you get the new switch.

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  • Visitor, , 157,000 mi

    Warning: Check Lamps. Fix: Replace bulb.

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  • Visitor, , 103,000 mi

    not fixed working on it

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