How to troubleshoot is prolem / What hand held device to use ?
Check for bad grounds,Fuse box, body straps,etc.When lots of electrical things are intermittent on one system that's usually what it is.If it's the hot side that's bad (worn,loose,etc.)usually the fuse will pop,bad ground usually doesn't pop the fuse.
Unfortunately you need an expensive scan tool that can read all the other individual modules of a car. The Mercedes Benz cars have many of these and without information, it is very hard to work on.
It sounds like a body module is acting up.
SOURCE: 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.
SOURCE: spare key for c230 mercedes benz
does it have a chip in the key ? if not any locksmith can make you one
SOURCE: need a diagram for serpentine belt replacement for mercedes benz
Below is a link for your diagram. Best of luck!
Greg
http://www.mvreader.com/multiview/dayco/zoom.php?zoom_item=C0002R&l=n&catalog=auto&category=2
SOURCE: 99 MERCEDES BENZ C230 AUXILIARY COOLING FAN RELAY
I thought they where either on the side of the core support(follow the wire harness and it should go to the relay). If not remove the fuse box lid and then take out the screws retaining the lid housing and you will find a series of relays. There will be one for high speed (engine uses this when temp. is to high) the other is a low speed relay(this is the climate control aux. fan relay) They may have fuses on top of them I know the older models did. I hope I have been helpful.
SOURCE: cigarette lighter in mercedes Benz C230 does not
hello. Begin by checking the fuse for this lighter. Chances are that is where the problem lies. Other wise it may be the unit itself which is easy to repair. If you need to replace the unit just go to the auto parts store and get the correct one for your car. It will include step by step directions. Joe
ps kindly rate my answer as helpful. ty
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