The crankshaft position sensor may fail. Symptoms of this are: The engine will crank—but not start—especially when the engine is warm. The car may start again if it is left to cool off, but it may run roughly or have poor performance. Communicating these specific symptoms to your technician can save diagnostic time.
Resources for the Repair and Maintenance of your Mercedes-Benz C55 AMG
Mercedes-Benz C55 AMG Models:
Mercedes-Benz C55 AMG Problems
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Catalytic converter failure is common and may cause a Check Engine Light to illuminate.
An engine oil leak may develop from the oil level sensor. Replacement of the leaking sensor will commonly correct this concern.
The rubber bond in the harmonic balancer can decay, which causes the balancer to move and work its way toward the timing cover. If the balancer comes into contact with the timing cover while the engine is running, it will fracture and damage the cover and potentially other surrounding parts. The harmonic balancer should be inspected at every service.
Due to the size and material used on the brakes of these vehicles, the brakes may start to squeak around the 50 percent wear point. The brake rotor surfaces become uneven, causing a lip to form at the outer edge of the rotor. Because of this, the rotors are usually replaced when the pads are worn (pad life varies depending on driving style and terrain).
Mercedes-Benz C55 AMG Recalls (Recent)
RepairPal Expert Overview:
Certain passenger vehicles equipped with sport model steering wheels fail to comply with the requirements of the Federal Motor Vehicle Safety Standard # 208 "Occupant Crash Protection"In certain tests conducted by NHTSA, using an unbelted female crash test dummy, conditions were found that occupants may not be properly protected during a crash, resulting in injuries. Dealers will install a new airbag module free of charge. The Mercedes recall # is 2006020005
RepairPal Expert Overview:
There is a faulty software calibration that affects several areas including shutting off the fuel supply in a collision. This could cause a fire hazard during an accident. Dealers will reprogram this software. The Mercedes-Benz recall number is 2008 070001. This recall began during August, 2008.
Mercedes-Benz C55 AMG Reviews
Replaced a C43 and is both a much harder (sportier) drive and feels much less "special". I had thought sportier the better but for me this is as hardcore as I wish to go and I admit to driving in gearbox C mode 90% of the time S and M reserved for learning my limitations.
Good features are the engine, top brakes, the engine, reasonable ride handling compromise and did I mention the engine.
Actual car is just loaded W203 meaning just sort of upmarket Hyundai but at least the rusting is now at Ford levels unlike the W202.
20mpg is about it (unlike the C43 at 24mpg) so I have never made 300 miles on a tank.
Don't think DTM/Numburgring, think Hotrod and 1/4 mile and you will love it.