MartinSurreyUK
Member
My recently purchased CLK came with malfunction warnings for rear lights.
The left light unit was full of water and mould.
The bulb holder was corroded and multiplug broken with a seperate earth screwed to circuit board.
I removed the light unit and gasket looked ok with no cracks, but also noted debris in boot gutters which I cleaned out.
I found a used light unit, holder and plug on Ebay for £25 inc delivery.
I tried to clean out mould with dish soap and agitating. Got most out but there is one section which if difficult to reach and left a dark patch.
On close examination the foam gasket was misaligned.
I removed and used super glue to hold in a few spots and clear silicon in areas where foam heavily in dented.
I mananged to removed connectors from plug with a terminal removal tool as need two thin strips pushed down either side to withdraw.
I refitted old lamp unit and removed inner trip panel to dry out as still wet in lower well.
There was a problem with number plate bulbs as well and used contact cleaner and dialectric grease and replace all the rear bulbs with Lucas ones.
I still have the used light unit as backup as straight forward to remove and refit but needs a bit of care to locate and get past bumper.
Seems OK now
The left light unit was full of water and mould.
The bulb holder was corroded and multiplug broken with a seperate earth screwed to circuit board.
I removed the light unit and gasket looked ok with no cracks, but also noted debris in boot gutters which I cleaned out.
I found a used light unit, holder and plug on Ebay for £25 inc delivery.
I tried to clean out mould with dish soap and agitating. Got most out but there is one section which if difficult to reach and left a dark patch.
On close examination the foam gasket was misaligned.
I removed and used super glue to hold in a few spots and clear silicon in areas where foam heavily in dented.
I mananged to removed connectors from plug with a terminal removal tool as need two thin strips pushed down either side to withdraw.
I refitted old lamp unit and removed inner trip panel to dry out as still wet in lower well.
There was a problem with number plate bulbs as well and used contact cleaner and dialectric grease and replace all the rear bulbs with Lucas ones.
I still have the used light unit as backup as straight forward to remove and refit but needs a bit of care to locate and get past bumper.
Seems OK now
