Brake Lights

1988 MERCEDES BENZ 300SE
140,400 MILES • 6 CYL • 2WD • AUTOMATIC
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MATEO3527
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I have a 1988 Mercedes SE. Last week, my left brake light was out. I took out the bulb and it was bad. I had to go buy one so I put the tail light assembly back on. Then both brake lights and the rear window brake light wouldn't work. I replaced the bulb and the fuse but all brake lights still don't work...Any ideas?? Maybe the brake pedal switch? How do you check/replace it? Thanks for any help.
Feb 27, 2011 at 10:04 PM
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STRAILER
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Hello,

You have a light out warning module that I think is going out here is a guide to help you test to find where you are losing power along with the brake wiring diagrams. (Below)

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Check out the diagrams (Below)

Please let us know what happens.

Cheers, Ken
Feb 20, 2018 at 4:12 PM