Quote:
Originally Posted by Joseph Martin
My 1988 360 GLE failed its first MoT in two years - two very minor issues.
With the headlights on, pressing the brake turns off the bulb completely on the right hand side. I'm thinking this is down to a bad earth. Where are the rear lights unearthed to, or am I looking in the wrong place?
Any advice appreciated.
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On the back of the plastic housing where the bulb holders are is a thin metal bar which runs long and presses on each bulbs case , the bar has a earth wire on it , as you only get a problem with one bulb I would take the bulb out and clean its casing and look carefully at the strip which it presses up against.. sometimes the plastic support holding the strip can break .. can be fixed with a strong epoxy glue to strengthen the strips support..
Or it may just be a dirty bulb and case contact .