My wife's sister recently had a headlight replaced (reflector and all) in her 300E. The dealer, in the California Bay Area, replaced the light and also charged for properly aiming the headlights. When she first went to drive the car at night, there was no light coming from the new headlight. The dealer tech had not put a bulb in! She took the car back to the dealer and they gave her a bad time about making it right. Talk about cheap!

I recently bought the car. With the rather grumpy help of a motorcycle policeman who I blinded with my lights one night, I found the dealer tech had gotten even by aiming both headlights way high so the low beams blinded oncoming cars. The high beams were up in the trees.

It's a shame that these kind of techs tend to make us suspicious of all techs. There are many honest and competent techs out there. I just wish I could tell which were good before I take the car in. That's why I try to DIY as much as possible.