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C240

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Question
Car start problems, diesel leak
If liquid fuel can leak from the line, air can definitely be introduced into the line during operation. This air in the line can throw off calculations for the air/fuel mixture and cause the engine to stall or run very...
Question
Car stopped working and starting up - 2001 Mercedes Benz C240
The C240, like all Mercedes built in this century, is a very complicated car and is subject to a number of electronic failures. The ESP on the warning light stands for Electronic Stability Control which exerts a certain amount...
Question
If I have low coolant and my car won't blow cold air could that be the problem?
Hey there, thanks for writing in about your 2003 C240 Mercedes-Benz. The low coolant light only means your engine coolant level is low in the engine cooling system. You may have a coolant leak. This has nothing to do with...
Question
Is there anyway to fix cigarette lighter and also to connect iPhone to car to listen to music?
Hello. There should be an AUX mode in the car's stereo system that will allow you to use your iPhone to supply music. If this does not work, you may have a faulty stereo that may need to be replaced....
Question
Keys won't turn in ignition
Hi there. From the description you have given, your ignition may have developed some wear over time. Trying another key may correct the problem you are having. If an alternate key does not resolve the problem, then it could be...
Question
Car won't start - 2004 Mercedes Benz C240
This maybe caused by a variety of potential issues. For starters, I would suggest testing the key a few times while moving the steering wheel to see if this will get it to start again. Try another key, too, if...
Question
What are the chances it could be the fuel relay that is stalling my car?
Hi, thanks for writing in. It's hard to tell what the problem without doing some further testing. If you do not hear the fuel pump prime when you turn the key to accessory, this is a huge sign. Technically, it...
Question
Door lock quivers
Hi. From your description, I assume that you are talking about the door locks not functioning correctly. This is due to the door lock actuator malfunctioning. The actuator will need to be replaced. If you would like to have this...
Question
Cost for transmission replacement
Re-manufactured transmissions for this vehicle cost in the neighborhood of $3,000, not including installation. Prior to deciding to re-build the car's existing transmission (a good, lower cost option) or replacing it with a re-manufactured unit (a higher cost option), the...
Question
P0030 p0015 chk eng lgt on whining noise stuck 2 gear 1 yr had car let son drive 2 NV havent chk fluid N trans hope it wasnt low
The code P0015 is a bank 1 timing over retarded warning. The P0030 code stands for the heated oxygen sensor malfunction, which also pertains to bank 1. The oxygen sensor malfunction could be due to a failed sensor, heater, or...
Question
My C240 Mercedes feels like it's skipping and the Check Engine Light is on
Hey there. The Check Engine Light comes on when there is a fault stored in the engine control module. A fault can be set by any number of sensors, ignition, or fuel system components that may have gone bad. A...
Question
SUSPENSION
Without any specifics to go by, it would be difficult to help you out here. Click on the QUOTE link on any page of our website. You can provide specifics there and someone will get back to you with a...
Question
is the anti theft control module the reason why my car turns off immideatly when i turn it on ?
Your car has what Mercedes calls the Driver Authorization System. "DAS" if the DAS does not recognize your key via an electronic code, it will not start at all. If your car starts and shuts off immediately, there is some...
Question
Engine quit after ticking, then louder ticking.
Hello there, you have several different faults going on with your 2005 Mercedes C240. The P0341 Code meaning is Camshaft Position Sensor Circuit Range/Performance and can be caused by a wiring harness fault, failed sensor, or engine timing improper. The...
Question
Nothing happens when I push the gas pedal
The P0104 is probably the key. This is a code for the Mass Air Flow circuit. What it means is that the reading from the MAF is not along the lines of what the ECU expects. The 171 and 174...
Question
SRS Light
The SRS light is an indication that there is a fault in the Supplemental Restraint System. This has to do with the airbag system. There can be a fault in any of the impact sensors that the system relies on...
Question
Brake system, coolant leak, brake fluid leak ,wheel hub
All of these repairs are feasible. Brake systems can leak at a variety of points but the repairs are pretty straightforward. What I would suggest is you visit the YourMechanic Internet portal and request brake leak diagnostic and repair service....
Question
starter switch replaced and do you have the computer to reset it. Also need help to put my new gas tank in. I have taken all bolts
Hello. After replacing the ignition switch on your vehicle you should be able to reprogram it manually. Putting the key into the ignition and leaving it there for a few seconds until an indicator comes up on the dashboard saying...
Question
2003 Mercedes C240 will not start
At 210 thousand miles, it really could be just about anything. If the alternator wasn't charging and you drove the car until the battery voltage went so low that it cut off, there are probably a zillion codes stored in...
Question
hi. 2002 mb c240. light came on for visit shop battery/alternator. Battery is new. how to know if alternator is bad?
Hello, thank you for writing in. The alternator can be tested by checking the voltage coming from it while it is running with a voltmeter. You should also check the voltage when revving the engine to 2000 RPMs. The alternator...

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