BenzWorld Junior Member
Date registered: Aug 2010
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R170 front turn signal bulb remove/replace
I know this will seem ridiculously elementary for most but "even I" could have used a step by step how-to since the owner's manual and WIS instructions are a tad vague, and I live in fear of cracking plastic trim.
The bulb unit slides out pretty easliy; when installed the access plug to the bulb is buried down under other stuff and is almost impossible to reach unless you have a shrink ray machine for your hands.
There is a release at the back of the bulb unit that is accessed through a hole in the sheet metal (picture).
Look down the hole that the screwdriver is pointing to. See the little grey cup down in there? Push down gently with a screwdriver or other suitable poker about 1/4-1/2"; when you feel a little springy "give" the assembly can the be slid out (forward) with simultaneous forward motion from the screwdriver as it sits in the cup.