There are 3 owner-reported suspension complaints for the 2006 Mercedes-Benz C-Classin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
I WAS APPROACHING AN EXIT AND THE VEHICLE ENGINE WAS REVVING WITH RPM'S HIGH HOWEVER THERE WAS LITTLE POWER TO MOVE FORWARD. I PULLED THE CAR(COASTING) TO THE SIDE OF THE ROAD TURNED IT OFF AND RESTARTED IT UNABLE TO THINK WHAT ELSE TO DO. ON ANOTHER OCCASION THE SAME THING HAPPENED WITH THE SAME RESULT THIS PROBLEM HAS OCCURRED AT LEAST 4 TIMES.. THIS IS A SAFETY ISSUE BECAUSE IF I HAD BEEN ON A CONGESTED HIGHWAY WITH NO ACCELERATION AND NOWHERE TO PULL OFF THE RESULT WOULD HAVE BEEN AN ACCIDENT. THE ENGINE SHAKES UPON STARTING IT AND THE CHECK ENGINE LIGHT COMES ON AND OFF INTERMITTENTLY. CAUSING ME TO BE UNAWARE OF A REAL PROBLEM. I CANNOT AFFORD TO KEEP TAKING THIS CAR TO CHECK OUT WHY THE CHECK ENGINE LIGHT KEEPS COMING OFF AND ON TO BE INFORMED ITS ANNOYING BUT TO DEAL WITH IT.
FRONT RIGHT SPRING BROKE. THIS IS THE 2ND SPRING THAT HAS BROKEN IN LESS THAN A YEAR. THIS TIME THE BROKEN SPRING WAS RUBBING AGAINST MOVING PARTS AND SMOKING AT ONLY 5 MPH. IF THIS HAPPENED AT HIGHER SPEEDS, OR ON A CURVE, I SUSPECT IT COULD BE DANGEROUS. THERE ARE NUMEROUS REPORTS OF MERCEDES SPRINGS BREAKING ON VEHICLES WITH LESS THAN 50,000 MILES. THAT WOULD CERTAINLY INDICATE TO ME THAT EITHER THE DESIGN OR SPRINGS ARE DEFECTIVE. *TR
THE FAILURE IN THIS CASE IS THE REPLACEMENT OF THE COUNTER BALANCE SHAFT ON A 2006 C230 MERCEDES BENZ WITH LESS THAN 100,000 MILES. I'VE READ THAT MANY OF THESE FAILURES HAVE OCCURRED AND THE REASON FOR FAILURE WAS DUE TO THE SHAFT NOT HAVING PROPER HARDENING. I'VE ALSO READ THE MERCEDES BENZ IS AWARE OF THIS PROBLEM. THE COST OF THE REPAIR IS ABOUT $4500 ON A VEHICLE THAT THE WARRANTY GOES OUT IN 4 YEARS OR 50,000 MILES. ALL SERVICES TO THIS VEHICLE HAVE BEEN DONE AS REQUIRED, BUT NOT THROUGH THE DEALERSHIP. INFORMATION I'VE READ ABOUT THIS PROBLEM STATES THAT THERE'S NOTHING I COULD HAVE DONE TO KEEP THIS FROM HAPPENING AND THAT IT'S HAPPENING TO MANY, MANY VEHICLES. I BELIEVE IF THIS IS HAPPENING FREQUENTLY THAT THE MANUFACTURE SHOULD BE RESPONSIBLE FOR THE COSTS ASSOCIATED WITH THIS TYPE OF REPAIR. THANK YOU FOR YOUR TIME AND CONSIDERATION. *TR
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 25, 2026