Help — third rear brake light
07-04-2018, 02:09 AM
#1
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Join Date: Jul 2007
Location: Albuquerque, NM
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2018 C300 4 Matic
Help — third rear brake light
Brake light works fine. But, the sensor that lights up the dash to indicate a bulb failure comes on intermittently. About to sell the car.
I'm going to try to clean the connector contacts tomorrow. Does anyone else have any help/advice for me?
Thanks..
I'm going to try to clean the connector contacts tomorrow. Does anyone else have any help/advice for me?
Thanks..
07-04-2018, 11:18 AM
#2
MBworld Guru
Mine was doing this, so I removed the light from the trunk and took (i.e. cut) the lens off. I was expecting to find bad solders, broken wiring, or corrosion, but it was all just fine. I use silicon sealant to reattach the lens, then reinstalled the light, being careful not to over-tighten the nuts - they only need to tighten enough to stay in place. After that, no more errors. All I can figure is that the light was bolted too tightly in place and caused an intermittent short.
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abqhudson (07-05-2018)
