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C250

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Question
Not Driving this particular car regularly would this cause any problems
You could conceivably run into battery issues, but not likely in a car this new. Like a computer, this car has a lot going on in it even when everything is turned off. So the battery has what is known...
Question
Mercedes Benz Service B
The service reminder system is not simply a mileage counter anymore. It is a computer integrated into the car's other systems that takes into account such factors as temperature, speed, how long your trips are, and whether you do more...
Question
Squeak / Grinding Sound only when moving 2013 Mercedes C250
Hi there - thanks for providing a sound sample! Noises are probably the hardest thing to diagnose, even when you can capture a recording like this. I suspect either the brake pad wear warning tab, or the driveshaft center bearing...
Question
Replace key battery message on Mercedes won't go off
It is possible that the key fob battery warning light has to be reset manually and does not go off automatically when the batteries are replaced. I would recommend looking through your owners manual to see if there is a...
Question
My Check Engine Light is on - 2012 Mercedes-Benz C250
There are a variety of reasons the check engine light may come on. Unfortunately, this generally requires hooking the car up to a scanning tool to download any potential faulty codes in the computer that may indicate more specifically what...
Question
C250 50k, just changed timing chain tensioner, still chatters for on second on cold start
Hello. For most vehicles it could actually be considered normal to hear a little bit of chattering when the vehicle is first started. This is due to the engine needing a brief period of time for the oiling system to...
Question
Where is the crankshaft sensor on merceds c250
Look for a three terminal (three wire) wiring harness plug either adjacent to the harmonic balancer in the front of the engine or, in some models, towards the rear of engine on the driver’s side, near the firewall. If you...
Question
Camshaft Sensor Replacement
Hello, thank you for writing in. When looking at the engine you will see the two different banks of the engine. These are the heads, and inside the heads you find the camshafts. To track the camshaft's location for timing...
Question
Engine Light comes on and car wont accelerate
What you are describing sounds like a dirty or faulty mass air flow sensor. The mass air flow sensor monitors air intake as it is mixed with fuel prior to being injected into the motor. This sensor relays vital information...
Question
Cannot start car
Hi there. In most cases, when you turn the key and nothing happens; but you have electrical systems powered, the issue is caused by a faulty ignition relay or the ignition cylinder itself is faulty. It's best to have a...
Question
I also have the 2012 Mercedes-Benz C250 Turbo charged m271 engine it rattles when I first started looking to replace the cam phase
You should first have the computer system tested so the noise can be completely diagnosed to find the cause of cold start rattling noise. You may just need to replace cam phaser or timing chain and guides with the phasers....
Question
Car just came from Mercedes-Benz they gave me a fault code P0340 62 they want to remove the valve cover and check for the camshaft
If your car was used under normal service, it does not have enough miles for the timing chain or gears to have worn out and caused the problem you are describing. Furthermore, the fault code that you are referring to...
Question
I have a restraint system malfunction visit workshop message popping up on my mercedes c class 2011, I jump started a car with my
The dead battery may have caused the fault or faults, to be set. Has the battery been replaced ? If so and the system is ok, then the fault may clear itself after a couple of ignition cycles - starting,...
Question
My car kicks up good but won't start
Hi There, This may be related to many different possibilities, some of which may be related to a lack of spark or possibly timing issues and some of which may be related to a fuel delivery problem or a combination...
Question
My car inadvertently got coolant into the engine through a broken seal and . 1.5 gallons. What is the worst i can expect to happen
Hello, and thank you for writing in. With such dramatic failures and so many opinions, it is easy to become confused and worried. Checking the oil at this point will not tell you much. Any metal shavings that have come...
Question
My 2013 Mercedes benz c250 ac won't work, it blows hot air and the ac button light flashes red three times and then turns of
Hello. On this vehicle for it to be acting up like this it typically means that there is a programming issue with the HVAC unit. It is also possible that the system has a small leak if it has been...
Question
Car will not turnover. Just one click when the key is turned. All electronics (radio, lights, etc.) are working.
Hi There, Generally, when turning the key produces one single click sound, this often times indicates you may have a faulty starter solenoid. A faulty starter solenoid will generally produce a clicking sound when turning the key. The starter solenoid...
Question
Water is getting in through the side of my window. And it filled the floors of my drivers seat and the seat behind with water.
It sounds like you may have some weather stripping that may be failing to seal the door properly resulting in the water seeping in through the door. The weather stripping is a small rubber seal type strip that runs around...
Question
ABS light on, ESP light on,Traction OFF light on, engine light on, rides perfectly OBDI reads only Front Right Wheel Speed Sensor
If a faulty component is still in place, the fault codes will return almost immediately after clearing them. ABS, ESP, and traction control systems all rely on input from wheel speed sensors to determine as the name implies, the speed...

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