RoadVitals

2008 Mercedes-Benz C 300 Powertrain (other) Problems

Owner-reported complaints naming the powertrain system, filed with NHTSA

Data refreshed

Powertrain (other) reportsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
16
Latest Apr 10, 2025
Share of all reportsThis category as a share of every owner report on file for this model year. One report can name more than one component, so the categories overlap.
2%
of 672 total
Crash or fire reportedReports in this category whose submitter recorded that a crash or a fire occurred. The reporter's own answer on the NHTSA form, not a verified finding.
0
Injuries or deaths reportedTotals the submitters entered on their own reports in this category. Not verified by NHTSA and not a casualty statistic.
0

What this page shows

Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials. Every record below is an owner-reported complaint about the 2008 Mercedes-Benz C 300 submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 16 reports on file name it.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Owner reports naming powertrain

Shown in the owner’s own words, exactly as filed

ElectricalExterior lightingPowertrain (other)
Filed Apr 10, 2025

The vehicle has been loosing power during driving. Acceleration will die, then power will return. In addition exterior lighting will also malfunction or not work. As well ans other items associate with power or the unit that controls the power of those items After taking the vehicle in multiple times we had been told and looked up about the recall. Multiple are in place but the recall regarding the electrical/ power train / lighting r/t units in place and this recall sounds spot on with issues the vehicle is having .

NHTSA ID
11653985
Incident
Jan 1, 2008
Powertrain (other)
Filed Apr 25, 2019

TRANSMISSION LEAKS SO CAR STARTS SHIFTING HARD JERKING LEARCHING. MECHANIC SAYS IT IS A TORQUE CONVERTER SEAL THAT LEAKS SO NEEDS TO BE REPLACED. BUT HAVE TO PULL THE ENGINE & TRANSMISSION OUT TO SPLIT SO THE LABOR IS 22-23 HOURS LABOR WHEN THE PART IS ONLY LIKE $23 SO THE REPAIR BECAUSE OF THE LABOR WOULD BE ABOUT $2200 WHICH WE CAN'T AFFORD. THE MECHANIC FOUND SO MANY SAME VEHICLES WITH THIS PROBLEM THAT THERE SHOULD BE A RECALL. BUT OF COURSE THE DEALER WON'T REPORT BECAUSE THEY DON'T WANT TO HAVE TO MAKE THIS EXPENSIVE REPAIR TO SO MANY VEHICLES. WHILE DRIVING FAST OR SLOW ACCELERATING BREAKING TO SLOW DOWN, TAKING OFF AT A STOP SIGN STOP LIGHT GOING IN REVERSE ETC IT HESITATES TO GO INTO GEAR. KEEPS HAPPENING MULTIPLE TIMES A YEAR WE HAVE TO KEEP CHECKING CHANGING THE TRANSMISSION FLUID & GETTING IT TOPPED OFF.

NHTSA ID
11203645
Incident
Jan 8, 2017
Mileage
77,749 mi
ElectricalPowertrain (other)Seat belts
Filed Sep 18, 2018

TRANSFER CASE RESEAL. I HAVE A 2008 C300 I BOUGHT WITH 56K MILES ON IT, I HAD TO HAVE THE WHEEL BEARINGS REPLACED IMMEDIATELY. WHEN THIS SERVICE TOOK PLACE, I WAS INFORMED THAT I NEED TO HAVE MY TRANSFER CASE RESEALED AND THE CAM SHAFT MAGNETS REPLACED. THIS CAR HAS SUCH LOW MILES ON IT. I DO NOT UNDERSTAND HOW THIS IS NEEDED AT THIS TIME. I HAVE SEEN ON MANY BOARDS, THIS IS A COMMON PROBLEM. WHY HASN'T MB RECALLED THIS YET? IT APPEARS THE 2008 MODEL IS PLAGUED WITH PROBLEMS AS I HAVE HAD TO REPLACE THE STEERING LOCK AS WELL AS IT FAILED. AGAIN, COMMON PROBLEM AND NOT RECALL. I NOW HAVE A SEATBELT SENSOR THAT FAULTY. ALL OF THIS BEFORE I HAVE EVEN HIT 100K. MY 2001 ML IS WELL OVER 200K AND I HAVE NEVER HAD THESE ISSUES WITH THE ML.

NHTSA ID
11130220
Incident
Sep 18, 2018
Mileage
56,800 mi
EnginePowertrain (other)
Filed Nov 1, 2016

ISSUE WITH CAM GEARS. MERCEDES HAS KNOW ABOUT THIS ISSUE FOR MANY MANY YEARS. THERE SHOULD BE A RECALL ON THIS ISSUE. CAR IS UNSAFE WITH THIS PROBLEM AND COSTS ABOUT $8000 TO FIX. FROM THE ONLINE CLASS ACTION LAWSUIT FROM 2013 "THE ENGINES ARE EQUIPPED WITH DEFECTIVE GEARS IN THEIR BALANCE SHAFTS OR WITH DEFECTIVE IDLE GEARS. THESE DEFECTIVE GEARS WEAR OUT PREMATURELY, EXCESSIVELY, AND WITHOUT WARNING, CAUSING THE VEHICLE TO MALFUNCTION, THE 'CHECK ENGINE LIGHT' TO REMAIN ILLUMINATED, AND THE VEHICLE TO MISFIRE AND/OR STOP DRIVING." *TR

NHTSA ID
10920560
Incident
Oct 16, 2016
ElectricalPowertrain (other)Steering
Filed Jul 2, 2016

PARKED VECHILE TO MAKE A QUICK STOP WHEN I RETURNED VECHILE WILL NOT START. GOT A JUMP AND IT WAS CONFIRMED IT WAS NOT THE BATTERY CAR WAS ONLY AT 75000 MILES

NHTSA ID
10882308
Incident
Jun 29, 2016
Mileage
75,000 mi
BrakesPowertrain (other)Steering
Filed Jan 27, 2016

TL* THE CONTACT OWNS A 2008 MERCEDES-BENZ C300. THE CONTACT STATED THAT THE REMOTE KEY FAILED TO START THE VEHICLE. THE BRAKE PEDAL LOCKED UP, THE STEERING WHEEL SEIZED, AND THE GEAR SHIFTER FAILED TO COME OUT OF PARK. THE INSTRUMENT PANEL INDICATED TO REMOVE THE KEY FROM THE IGNITION SWITCH. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 90,000.

NHTSA ID
10822668
Incident
Jan 26, 2016
Mileage
90,000 mi
Powertrain (other)
Filed Nov 11, 2015

TRANSMISSION AT 60000 STARTED MAKING NOISE. MY MECHANIC DIAGNOSED AS TRANSMISSION REAR DRIVE SHAFT BEARING. LOOKING ON INTERNET, MANY PEOPLE HAD SAME ISSUE AT EVEN LOWER MILEAGE. AND MERCEDES DOES NOT MAKE JUST BEARING, THE ENTIRE TRANSMISSION NEEDS REPLACED.USED TRANSMISSIONS ARE DOING SAME THING. I THINK IT IS TIME TO ISSUE A RECALL

NHTSA ID
10789855
Incident
Jun 17, 2015
Mileage
1 mi
ElectricalEnginePowertrain (other)
Filed Nov 4, 2015

PARKED CAR LEFT FOR AN HOUR CAME BACK AND TRIED TO START VEHICLE AND IT WOULD NOT START DEALERSHIP SAID IT WAS THE EIS (ELECTRONIC IGNITION SWITCH) AND CHARGED ME $1900 TO FIX IT, ALSO BEFORE I TOOK IT IN FOR THAT REPAIR THE SUNROOF WOULD NOT WORK PROPERLY AND REAR RIGHT BRAKE LIGHT WENT OUT THEY FIXED THAT UNDER RECALL FREE AFTER THAT MY SUNROOF WORKED FINE. NOW MY SERPENTINE BELT BROKE AND SHREDDED WHILE I WAS DRIVING LOOKED IN MY ENGINE AND THE BELT WAS ALL OVER ENGINE IN PIECES.

NHTSA ID
10788460
Incident
Jul 6, 2015
Mileage
76,900 mi
Powertrain (other)
Filed Jul 9, 2015

STARTED REVERSING CAR WHEN I STOPPED THE CAR CONTINUED MOVING. CAR WAS IN PARK. CAN START CAR BUT IT APPEARS TO BE STUCK IN NEUTRAL, WILL ROLL BACK OR FORWARD - NO GEARS ENGAGE.

NHTSA ID
10732941
Incident
Jul 8, 2015
Mileage
49,004 mi
Powertrain (other)Steering
Filed Jun 26, 2015

WAS MAKING A TURN AND THE STEERING WHEEL LOCKED UP AND GAS WOULD NOT WORK. CAR SLOWED TO THE STOP AND I HAD TO TURN OFF AND TURN BACK ON. 5 MINUTES LATER WAS DRIVING AND STEERING WHEEL LOCKED AGAIN AND CAR SLOWED TO A STOP. HAD TO GET CAR TOWED WHEN IT WOULD NOT TURN BACK ON.

NHTSA ID
10730591
Incident
Jun 26, 2015
Mileage
84,000 mi
Powertrain (other)Steering
Filed Apr 15, 2015

THE SERPENTINE BELT SHREDDED FOR THE THIRD TIME AFTER HAVING IT REPLACED TWICE WITHIN FOUR WEEKS. AS OF 4/15/2015 THIS CAR WILL HAVE ITS 4TH BELT INSTALLED. CLEARLY THE TENSIONER AND PULLEY(S) ARE MAJORLY DEFECTED. EACH TIME THESE INCIDENTS WERE LIFE THREATENING FOR ME AND MY DAUGHTERS. WE WERE SIMPLY BLESSED NOT HAVE BEEN HIT BY OTHER DRIVERS WHEN THE CAR LOST TOTAL CONTROL WITH NO STEERING POWER. EACH TIME OF THE CAR'S MALFUNCTION, I WAS SURROUNDED BY OTHER DRIVERS, MOVING WITH THE STEADY FLOW OF TRAFFIC.THESE ARE SERIOUS ISSUES. I CAN'T IMAGINE IF I HAD BEEN DRIVING ON THE FREEWAY AT A FASTER PACE. NOW I AM FACING THE EXPENSE OF REPLACING THE BELT FOR THE THIRD TIME(MAKING THIS THE 4TH BELT), REPLACING THE PARTS, THE COST OF LABOR, AND THE COST FOR A RENTAL DURING THE REPAIR TIME. MERCEDES SHOULD BE HONORABLE AND DEMAND A RECALL ON THESE PARTS IMMEDIATELY, BEFORE SERIOUS INJURIES OR DEATH(S) OCCUR. THIS COUNTRY DOES NOT NEED TO BE REMINDED OF THE SENSELESS BEHAVIORS OF THE FORD PINTO OR THE MOST RECENT, TOYOTA TRAGEDIES. MERCEDES CAN CONTROL THE OUTCOME OF THESE SITUATIONS WITH A SIMPLE RECALL. THE COST OF THE PARTS IN BULK OR WHOLESALE WOULD BE A VERY SMALL PRICE COMPARED TO THE HEARTACHE OF LOOSING THE QUALITY OF LIFE OR CAUSING THE ULTIMATE RESULT - DEATH! *TR

NHTSA ID
10705785
Incident
Apr 3, 2015
Mileage
51,000 mi
ElectricalEnginePowertrain (other)
Filed Aug 27, 2014

THE ENGINE DIES. THIS IS KNOWN BY MERCEDES BENZ AND IS BEING REPORTED ALL OVER. THE IGNITION SYSTEM NEEDS TO BE RECALLED AND REPLACED. WHY IS NHTSA DRAGGING ITS FEET ON THIS ISSUE. SOMEONE WILL BE INJURED OR KILLED BY THIS, IF IT HAS NOT ALREADY HAPPENED. *TR

NHTSA ID
10628937
Incident
Jun 11, 2014
Mileage
66,000 mi
ElectricalEnginePowertrain (other)+1 more
Filed Aug 9, 2014

CAR WOULD NOT START OR SHIFT GEARS. BATTERY WAS FOUND TO BE FULLY CHARGED. GEARS AND STEERING COMPLETELY LOCKED OUT. NO DASH BOARD LIGHTING. MERCEDES BENZ DISPATCHED BUT COULD NOT JUMP START. TOWING ONLY AFTER FORCING COVER OFF GEAR SHIFTER AND OVERRIDING GEARS TO PUT VEHICLE IN NEUTRAL. 69K MILES. *TR

NHTSA ID
10621123
Incident
Aug 8, 2014
Mileage
69,069 mi
ElectricalPowertrain (other)
Filed Jul 29, 2014

THE ENTIRE CAR LOSES POWER, NOTHING WORKS. *JS

NHTSA ID
10617143
Incident
Jul 4, 2013
Mileage
66,000 mi
Powertrain (other)
Filed Aug 28, 2013

TL* THE CONTACT OWNS A 2008 MERCEDES BENZ C300. THE CONTACT STATED THAT THE VEHICLE STALLED WHILE DEPRESSING THE ACCELERATOR PEDAL. THE VEHICLE WAS RESTARTED AND FUNCTIONED PROPERLY. THE VEHICLE WAS INSPECTED BY A LOCAL DEALER AND WAS DIAGNOSED WITH HAVING A SHORT IN THE TRANSMISSION COMPUTER. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE APPROXIMATE FAILURE VEHICLE MILEAGE WAS 50,000.

NHTSA ID
10537629
Incident
Jul 10, 2012
Mileage
50,000 mi
Powertrain (other)
Filed Aug 17, 2009

I PURCHASED A NEW 2008 MERCEDES BENZ C300, ON 8/16/2009, UPON STATING THE CAR ENGINE STARTED TO RACE SO FAST REACHED 7000 RPM WITHIN LESS THAN 5 SECONDS. I TURNED THE ENGINE OFF WAITED 2,TO 3 MINUTES I STARTED THE ENGINE AGAIN SAME THING HAPPENED . I WAITED 4 TO 5 MINUTES STARTED THE ENGINE EVERY THING BACK TO NORMAL. DEALER CHECKED THE COMPUTER HARD DISK AND COULD NOT FIND THAT INCIDENT. KNOWING IF POWER SURGE OR COMPUTER GLITCH HAPPENS WILL NOT BE RECORDED BY THE SAME COMPUTER.. SAME THING HAPPENED BEFORE WHEN I HAD 4000 MILES.. IF SIMILAR HAPPENS IN THE FREEWAY WILL BE DEATH FOR MORE THAN THE DRIVER. THIS IS A SAFETY PROBLEM. *TR

NHTSA ID
10280764
Incident
Aug 16, 2009
Mileage
17,000 mi

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

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Data sources

Data on this page last refreshed .