Ballpark price on 2007 Mercedes Benz C230 Maintenance B

The dealer near me charges $365 for a 4-cyl, $395 for a 6/8 cyl, or $425 for a 12-cyl. The only actual repair/maintenance you get for that price is an oil change (with Mobil1 and the MB filter, which are CRITICAL, ~$120 on its own) and tire rotation. This makes a lot of people think it's a scam, but really, it's a little steep, but definitely worth doing. The rest of the service consists of a massive inspection of your vehicle covering the following items.

-- Fluid levels
-- Tire tread/pressure/wheel condition
-- Air filter (inc. clean out housing)
-- Cabin air filter (inc. clean out housing)
-- Lubricate sunroof rails, locks, hinges, and seals on body.
-- Drive belt and tensioner
-- HVAC system operation
-- Instruments, cruise control
-- Wipers/washers/lights/horn
-- Windows/sunroof operation
-- Hoses
-- Transmission fluid
-- Brakes
-- Chassis/suspension
-- Driveshaft, inc. flex discs
-- Road test
-- Reset maintenance light

This is actually pretty essential to do, despite seeming like a lot of money for not much work. I have very rarely done one without catching a few things that the customer needs, and often it was a problem that would have gotten far worse had it been left to its own.