Mercedes-Benz C240 Questions

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Where is the fuel pump relay located?


trying to locate the transmission stick to check the fluid levels car gear sometimes makes clicking noises when i put it in gear and sometimes pulls back on me when im driving

check ingine light is also on with the code p0412 secondary air injection switching valve A circuit malffuntion my email address is

climate control shuts off by itself, and you don't realize it until you start getting cold. Car has multiple electrical problems. The cruise shuts off by itself, sometimes displays a L rear tail light out (but it's not), ESP and BAS malfunction lights come on whenever, but reset when car powers down, rear sunshade only goes up when it wants to, L front signal not working even though the bulb is known good and the socket contacts are clean and intact. Electrical nightmare to say the least. This car's days are numbered even if it only has an original 39,500 on it!

The fan for the interior of the car only works part time. It does not matter what position any of the control knobs are in or if the automatic temp control is on or off.

Hello Dear,
am encountering the 2 faults below, please can you solve it?

1) ac / heat / cold is not working, when i turn it on its not working at all and i dont hear the sound of the fan.

2) fluid and cooler faults always appear even there is lot of water in both of them.

I have no brake lights. Bulbs and fuses good. There is no Brake Light Switch at Pedel. No extra wires, no evidence that there was one. Have picture to prove it. I aint crazy.

no brake lights, bulbs and fuses good.?

ok replaced fan,coolant temp sensor, still running constantly,and loudly too???? Any suggestions???

The "BREAK PAD WORN" BRING TO WORKSHOP light came on today. Is a special tool needed if I replace them myself?

Does anyone know what the diagnostic code P1999 for mercedez c240 means????

how do you know if the problem is with aux relay,would it make the fan run all the time or would it not run at all??

my auxillary fan keeps running need to know where coolant sensor is located on c240 mercedez 2004

There is a gasoline smell in the car and it is making me sick.

Took my wife's 2004 C240 in for an A Service and one of the items found was a seal leak in the parking pawls. The cost of fixing this was $100 for the part, seals I assume, and $600 dollars for labor!! I didn't have that done yet as that seemed a bit expensive so wanted to find out more about this. What would a seal leak on the parking pawls cause and why is the labor for that so expensive?
Do they need to drop the trans to replace a seal? But even doing that, the labor cost seems very high. It's a Benz so expect cost to be above average, but that's a bit much I think.

two days prior wiper,indicator light and high beam stated coming on for a few seconds intermittently,this was followed by having to make atleast two attempts to start car.finally after trying to start on day two, the key could not turn in the ignition. doors were able to open and the spare key did not work either

I replaced a new battery in my c240 mercedes and signal lights, fuel
tank will not open , backtrunk release etc all not working.

Can someone give me the answer to this problem.

BAS light is coming up on my screen

I'd like to know how to replace the air filters? Anyone done this?
925 705-5580

how much for a brake job

how much to repair front lower control arms bushing

the other day my alternator battery light came on. then shut off so i was going to go home but i was pretty far. a few hours later the light came back on and stayed on for about 1.5 hours. and then the car died. i tried to start the car. it started but it would only run in idle. as soon as i hit the gas the car would die. it did this about 6 or seven times. so i took the alternator and had it and the battery tested. battery was dead, and the alternator tested bad. so i charged the battery and replaced the alternator. now the car will not start at all it just turns over. kind of at a loss no check engine light. or any other lights coming on. it might sound dumb but i was told that there might be some sort of reset procedure that is required after trying to start the car so many time unsuccessfully. or coincidentally something else might have gone wrong at the same time as the alternator.... what can i test or try....

When the car is warm I can start it everytime. When the car is cold I havae to turn it over many times before it starts. After that it runs great. No missing

My steering wheel whines and sometimes there is a clicking noise when I turn. Help.

Anybody have this happen? AC light goes on but fan dosent work. Was hoping someone had an idea how to fix this one.

when getting in car this problem is getting worse over time i maybe noticed wow car not cranking right away may 2 or 3 months ago but turn key sounds like not getting gas then vrooom... replaced battery this summer i am getting worried it will strand me what can it be?

My ASB and ESP light just came on , what's up ?? Are the brakes shot ? and ESP ?

The check engine light came on. Not really sure when, could have been after driving it up to 120 m/hr for a few minutes. It has been having problems starting in the mornings since it has been cold over night. It sputters on start up and sometimes needs two tries to start. When we stop at a traffic light the rpm go down so low that the car seems to want to shut off. This morning the car did not start at all. When I turn the key it sounds like it wants to start but can't get enough gas (this is just my female non mechanic input!!)after 15 seconds or so of trying to start running it shuts off. After it finally started, after about 30 minutes of trying and letting it sit for 10 minutes, a tremendous amount of white smoke was blowing out of the tailpipe. I did not want to get stuck on the road so left it at home. Any idea what this could be?

How often does the oil filter and oil need to be replaced.

Dashboard lights are completly out and when you turn the ignition nothing happens. All other components like radio, fan and lights work fine. Just changed crankshaft position sensor and when restarted all dashboard and warning lights lights came on and wouldn't go off and the gauges would not work.