2013 GL450 dealer service recommendations are expensive - which are necessary?
Took my 2013 GL450 in for its B Service and got back some service recommendations from the dealer. I've brought the car in for regular A and B service as recommended over its entire life and the car runs great (knock on wood). If I add up all the service recommendations, the cost would be high - almost $6,000. I have a sense of what's necessary but leaning on everyone's experience and expertise on the various service recommendations to make sure I'm not missing anything that I should be thinking about. All costs are rounded. Some of these seem high - granted I'm in a major city so labor costs are probably a big part. But $540 for a cracked lens replacement?
Front left and right camshaft covers are leaking oil - $1,500
Poly V belt is worn, replace - $370
Replace spark plugs every 60k miles - $900
Fuel injection service with additional intake cleaner - $360
Fuel filter is due at 150k miles with tank removed - $1,800
Replace air filter - $220
4 wheel alignment with camber bolts - $240
Day time running light lens replacement - $540
Thoughts?