Mercedes Benz C300 owners have reported 3 problems related to engine failure (under the engine and engine cooling category). The most recently reported issues are listed below.
I was in middle line on I-5 sb san diego doing 40-60mph when my car suddenly started to shudder, shake and smoke came from the exhaust. The car lost power and the check-engine light came on right away. I was told that cylinder 3 lost pressure, that the engine wall was damaged and that possibly the piston and wrist pin are cracked. My car has only 66k miles and the Mercedes Benz dealership is telling me that I need a new engine that will cost $19,000. After doing some research I have found out that I wasn't the only one with this issue. I have listed an example here: "here is a major issue with the 2015 m274 mercedes engine regarding the wrist pins. Mercedes has issued numerous internal service bulletins about the issue. The engines were manufactured with wrist pins with too much tolerance that slap against the piston when operating that could lead to premature engine failures. There are hundreds of complaints on online forums of premature engine failures (pre 100k miles). " mbusa requested from me proof that the car was serviced on time and with the correct parts. Once I was able to prove everything they told me that they were sorry but I still need to pay for everything. They did offer a "10% good-will discount". I wish they told me when I was buying a car that after every 6th oil change I will need a new engine. Please make mercedes make this right and fix the affected cars the right way.
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all problems of the 2015 Mercedes Benz C300
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There is a major issue with the 2015 m274 mercedes engine regarding the wrist pins. Mercedes has issued numerous internal service bulletins about the issue. The engines were manufactured with wrist pins with too much tolerance that slap against the piston when operating that could lead to premature engine failures. There are hundreds of complaints on online forums of premature engine failures (pre 100k miles). I contacted mercedes and they refuse to do anything to fix this problem the repair is well over $8,000 and the average person just can not afford it. You diagnose the problem based on chatter during deceleration. Please make mercedes make this right and fix the affected cars the right way. I just bought this car and I am now in the hole over $20,000.
Loud engine knocking when engine is cold. Diagnosed as incorrect/unfavorable tolerances of piston wrist pins that will ultimately lead to engine failure. Diagnosis happened with odometer at 2,438 miles.
Problem Category | Number of Problems |
---|---|
Engine And Engine Cooling problems | |
Engine Cooling System problems | |
Check Engine Light On problems | |
Timing Tensioner problems | |
Car Stall problems | |
Loud Engine Noise problems | |
Engine Failure problems | |
Engine Shut Off Without Warning problems | |
Vehicle Overheat problems | |
Engine Knocking Noise problems |