Where is the coolant temp sensor on 2007 mercedes benz c230

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: How do you reset c230 2007 mercedes benz resetting

Try this, it is the procedure for resetting the ASSIST computer on many Mercs
1...Turn Key to position No:2 in the ignition / steering lock and immediately press AND Hold the button "000.0" (the trip reset button) TWICE within the space of 1 (one) second.
2…Turn the key to position No: 0 in the ignition / steering lock. Then release the button.
3...Press AND Hold the button "000.0" (the trip reset button) and turn Key to position No:2 in the ignition / steering lock. Keep button pressed
After about 10 seconds the service indicator will reset and an acoustic signal may briefly sound
That should do it....Good Luck…...Let me know if it works?

SOURCE: ENGINE LIGHT COMES ON WHILE DRIVING MERCEDES BENZ

The check engine light comes on and stays on when a problem is detected by the self diagnosis system of your vehicle. Generally, the problem is in the emissions or something that is affecting the effectiveness of the emissions, but other causes can trigger the light to come on, too. To determine the cause, the vehicle will need to be taken to AutoZone or a shop that has an OBD2 scanner, or for 1995 and earlier models, an OBD1 scanner, While a scanner will not give you the magic answer, it will give you a code that narrows down the problem area.

A flashing check engine light is an indication of a severe misfire or problem that is likely to harm your engine. Immediate diagnosis and service is needed.

Some specific causes for the light to be on are:

Gas cap left off, not tightened, not installed correctly, or needs to be replaced

02 sensor

Engine misfire - error might clear itself after 3 complete warm-up cycles; not restarts, but warm-ups

At start up for a bulb check - Should not stay on

Problem in the emission system, including clogged exhaust or the catalytic converter not functioning properly

Dirty/clogged air filter

Dirty MAF sensor