W169 Headlight adjustment

David Richardson

Senior Member
Joined
May 7, 2011
Messages
213
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114
Location
Plymouth
Your Mercedes
W176 Blue Eff CY Sport CDI & C Class Coupe 2002 220CDI
Hopefully a simple answer,

I've just replaced the o/s headlight on my W169 & when facing a wall the aim is lower on that side; I've tried to adjust yet it doesn't seem to work, could someone tell me does the engine have to be running so the vac system is operational when adjusting the screws?

ta Dave
 
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