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Mercedes Benz C-class W205 Problems Malfunction What Is Your Experience ?
I have an annoyingsound underneath my steering wheel. A little ‘ticking, knocking’ sound for 2 or3 seconds after starting and driving 200/300 meters. I noticed it at 12/13 K kmIt’s now 17K. Car has been back to the dealer, they’ve controlled it, but foundnothing. Although they have re-fitted some parts, I still have this sound.
Went to the dealer, and set up an appointment next week. The mechanic said that he had read something in "DIPS??" (not sure if i am spelling this right) about this....
Also the car says that i have to change the batteries for the key. I have key less og start. Told the dealer, and he thought it was odd, as i had only had the car for 6 months.
This is my first Mercedes after several Japanese including the final 3 that were Acura TL. I have now had the car for 1 month and 4 days and have so far driven 985 miles as of today. My car has not experienced any hesitation or mechanical issues so far (fingers crossed). I purchased this car based on the glowing reviews, the value for money (Lease was actually cheaper on a loaded MB than Acura TL), my test drive car impressed me, drive-ability, MB name and associated prestige.
The only problem which is resolved is the car would not unlock. But since I have stopped having the Iphone in the same hand as my MB key, I have not had this problem. The mileage has been 25.8 over the 985 miles which is about 45% highway and remaining local roads. The highway drive is at 20 mph in bumper to bumper traffic. So I consider this good mileage.
The car is extremely quiet, drives wonderful, very stable, grips road and has enough power and oomph even with 4 cylinder.
Those of you who are concerned, please test drive the car and let the ride of car decide if you like the car or not. Don't let isolated experiences here drive your decision. Remember most people who have positive experiences do not go out of way to write about their car.
What's the chance that these early build bugs get worked out before my build date?
Consumer Reports gave this vehicle a great review (and that's why I am buying this car) and I know I'll have more service department time and I'm O.K. with that....in fact my salesman, who lives in the neighborhood, said he would take my car to the dealer (on his way to work) for any repairs.
So, I think I'm good...just wanted to express my nervousness!
It was most likely caused after we drove over some low undergrowth at a wedding, where we had to park in a field. (leaves and branches was found stuck at the point of the cable connections) It was reconnected at no charge, problem solved.
Not saying this is what causes your problem, especially since you wrote the dealers could not immediately find the cause of the problem.
But based on the reactions a story like yours can prompt, it is worth mentioning, that a problem seemingly identical to yours, can sometimes be caused by others factors then general production or quality issues.
Also, it appears that this situation is similar to mine, as it also happened on the same stretch of highway. http://www.benzworld.org/forums/w245...ator-loss.html
Here's what the dealer performed:
Last edited by pcdsl; Dec 22, 2014 at 04:48 PM.
Very strange.
The Best of Mercedes & AMG
- driver's side door handle light works from time to time.
- touchpad is temperamental
- SD card playback works from time to time, but copying files to HDD solves the issue
- MB internet apps usually do not work to a point where I gave up trying and cancelled the service
- steering wheel controls are confusing
- voice recognition does not recognize thick Polish accent
All of this are very minor problems and I am actually very happy with the quality of my C400.
What's the chance that these early build bugs get worked out before my build date?
Consumer Reports gave this vehicle a great review (and that's why I am buying this car) and I know I'll have more service department time and I'm O.K. with that....in fact my salesman, who lives in the neighborhood, said he would take my car to the dealer (on his way to work) for any repairs.
So, I think I'm good...just wanted to express my nervousness!
Owning or leasing a German car comes with growing pains.
I leased the C400 for its power, MPG, comfort, attractive interior and exterior. It's not perfect and it will have bugs. Get to know your service advisor in your area and be ready to drive a loaner car.

Also, it appears that this situation is similar to mine, as it also happened on the same stretch of highway. http://www.benzworld.org/forums/w245...ator-loss.html
Here's what the dealer performed:


Door closed!
1. Turn the ignition key to the on (not start) position.
2. Press the gas pedal to the floor and hold for five seconds.
3. Turn the key to the "off" position (don't remove the key), then release the gas pedal.
4. Wait at least two minutes for ECU to reset.
All this does is the align the throttle body throttle plate with the pedal. So full pedal movement = WOT. Sometimes loses calibration.
I'm not very hopeful in your case.
Door closed!
1. Turn the ignition key to the on (not start) position.
2. Press the gas pedal to the floor and hold for five seconds.
3. Turn the key to the "off" position (don't remove the key), then release the gas pedal.
4. Wait at least two minutes for ECU to reset.
All this does is the align the throttle body throttle plate with the pedal. So full pedal movement = WOT. Sometimes loses calibration.
I'm not very hopeful in your case.

The start stop technology hasn't worked since day 2 of ownership. 1,700 miles (and two weeks) into the W205 and despite the range of driving the bloody thing won't turn off at traffic lights. I just have the amber A on the dash all the time regardless of how much charge is apparently going back into the engine during my runs.
It's just annoying that it's so different to the W204 which used to cut out at every opportunity.
At least my getaways are faster I suppose










