| 1 | 0 | 3 | 4 | 3 | 4 |
Mercedes-Benz C-Class repairs by problem area
Engine (30%)
Transmission and Drivetrain (7%)
Brakes and Traction Control (4%)
Suspension and Steering (10%)
Electrical and Air Conditioning (31%)
Paint, Rust, Leaks, Rattles, and Trim (12%)
Other (6%)
Chart based on 1707 repairs.
Mercedes-Benz C-Class engine repair cost distribution
$2500+ (3%)
$1000 - $2499 (15%)
$500 - $999 (13%)
$100 - $499 (30%)
< $100 (39%)
Chart based on 410 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
2017 Mercedes-Benz C-Class 4dr Sedan
turbocharged 503hp 4.0L V8 7-speed shiftable automatic RWD
| 21000 mi | Ignition coil failure. Diagnosed after prior dealer diagnostic errors. Coil replaced under warranty. |
2017 Mercedes-Benz C-Class 4dr Sedan
turbocharged 241hp 2.0L I4 7-speed shiftable automatic AWD
| 22000 mi | Accelerator pedal intermittently unresponsive. Had to shut the car down and re-start to get it to respond. |
2016 Mercedes-Benz C-Class 4dr Sedan
turbocharged 503hp 4.0L V8 7-speed shiftable automatic RWD
| 22000 mi | Recall for faulty ignition coils |
2016 Mercedes-Benz C-Class 4dr Sedan
turbocharged 362hp 3.0L V6 7-speed shiftable automatic AWD
| 23000 mi | Exhaust sensor replaced |
2016 Mercedes-Benz C-Class 4dr Sedan
turbocharged 241hp 2.0L I4 7-speed shiftable automatic RWD
| 2000 mi | Check engine light on. Code set for Evap Purge Solenoid. Code could not be duplicated. Erased code. |
| 18000 mi | Fuel line leading to high pressure fuel pump split, causing fuel to slowly seep into the engine bay and resulting in a strong smell of gasoline. |
2016 Mercedes-Benz C-Class 4dr Sedan
turbocharged 241hp 2.0L I4 7-speed shiftable automatic AWD
| 10000 mi | Another increasingly common system that's difficult to classify. The Eco Start/Stop system quit working as designed. It has essentially working backwards, functioning when unexpected, not functioning when anticipated. Dealer couldn't find issue, so said it was fine. Hasn't worked once in two months - even though all known parameters have been met - engine at operating temp, passenger compartment st set temps, fully charged (hopefully after 100+ miles) but no longer working. Dealer seems beyond their depth with these systems so to save frustration I've decided to just pretend I don't have the features |
| 39680 mi | Along with routine oil and filter, I reported that the auto engine stop/start (at stops) was not functioning. The engine ALWAYS remains on (it used to turn off at red lights). The mechanic looked but couldn't find anything wrong, although he said that for this function to work, everything has to be just right. I decided to let it go... the car just stays running at red lights. |
2015 Mercedes-Benz C-Class 4dr Sedan
turbocharged 329hp 3.0L V6 7-speed shiftable automatic AWD
| 5000 mi | The car randomly goes into limp mode. The cause of the problem is unknown. |
2015 Mercedes-Benz C-Class 4dr Sedan
turbocharged 241hp 2.0L I4 7-speed shiftable automatic AWD
| 23000 mi | Engine wrist pin issue. Part replaced. |
| 13000 mi | Check engine light on |
| 13000 mi | The push button start failed |
| on cold morning start up time, fan belt gip, gip sound for 5 minutes. Replace fan belt as describe on technical bulletin and Update to latest software for engine management. | |
| 5000 mi | 1. replace engine piston wrist pin: result - engine chipping noise disappear when first startup and when going downhillrn2. replace front window glass with acoustic glass:result - no more excessive window noise. |
| 3000 mi | The engine has a loud ticking sound after start-up. |
| 15000 mi | The engine makes a terrible rattling sound for about 10 minutes after ignition. |
| 10700 mi | auto start engine problems. car would stall randomly at lights. |
| 21000 mi | the random jerkiness of the transmission was due to a not working crankshaft sensor. |
| 11000 mi | replaced faulty crankshaft position sensor which caused missed shifts and limp home mode. |
| 11690 mi | Engine low on coolant. Coolant added. No reason discovered, recall work performed. |
| 2000 mi | Faulty piston and piston rings |
| 38000 mi | A valve wouldn't open because condensation was freezing. Part was replaced under warranty. |
| 33000 mi | Gasoline smell inside vehicle and in engine compartment. Fuel leak discovered by technician. Replaced the fuel line to the high pressure fuel pump. |
2015 Mercedes-Benz C-Class 2dr Coupe
507-horsepower 6.2L V8 7-speed shiftable automatic RWD
| 8680 mi C $550 |
Engine light came on just one month after my last maintenance. Took a trip to dealership. Covered by warranty. Also replace a broken day-time running light. |
2014 Mercedes-Benz C-Class 4dr Sedan
248-horsepower 3.5L V6 7-speed shiftable automatic AWD
| 69000 mi | Injector failed causing engine to misfire. Diagnosis took several days, then had to wait for replacement injector. |
| 31000 mi US $255 |
General maintenance no parts replaced |
2013 Mercedes-Benz C-Class 4dr Sedan
turbocharged 201hp 1.8L I4 7-speed shiftable automatic RWD
| 33000 mi | idle pulley worn out radiator expansion reservoir was leaking |
2013 Mercedes-Benz C-Class 4dr Sedan
turbocharged 181hp 1.8L I4 6-speed manual RWD
| 21080 mi $350 |
Replaced both idle fan pulleys because it was making a whining noise |
2013 Mercedes-Benz C-Class 4dr Sedan
302-horsepower 3.5L V6 7-speed shiftable automatic RWD
| 2700 mi | Timing chain tensioner had defective check valve causing rattle sound at start. |
2013 Mercedes-Benz C-Class 4dr Sedan
248-horsepower 3.5L V6 7-speed shiftable automatic AWD
| 70000 mi US $250 |
Ignition coil needed to be replaced |
| 48000 mi US $200 |
water pump leak, replaced leak near muffler |
| 19220 mi | Coolant leak.. |
| 39000 mi | Fuel pump control module drawing down battery when car shut off |
2013 Mercedes-Benz C-Class 2dr Coupe
turbocharged 201hp 1.8L I4 7-speed shiftable automatic RWD
| 35340 mi C $275 |
On changing oil at an independent shop, the mechanics said there was a gasoline smell in the oil. The car was brought to the dealership and the next day we were told it was not unusual. Nothing was wrong with the car they say. ? |
2012 Mercedes-Benz C-Class
Engine not specified
| 93000 mi US $120 |
Shaking of vehicle felt under passenger seat. Replaced transmission mount |
| 94000 mi US $20 |
Replaced Bolt on Engine to eliminate spoke |
| 27940 mi $1200 |
Engine Mounts and Transmission Mount replaced. Wipers also replaced. I CANNOT BELIEVE I HAD TO CHANGE ENGINE MOUNTS AT 50K KMS! |
2012 Mercedes-Benz C-Class 4dr Sedan
turbocharged 201hp 1.8L I4 7-speed shiftable automatic RWD
| 60000 mi US $800 |
Cam shaft adjusters needed to be replaced. Car was out of warranty, but dealer and/or MBUSA didn't charge for parts, only labor. |
| 60500 mi US $2000 |
Engine malfunction |
| 63000 mi | Traded car because of engine problem that would have cost $3k to fix. |
| 25000 mi | Fuel pump failing resulting in occasional poor fuel delivery, rough acceleration and check engine light |
| 7000 mi | Check engine warning light came on and vehicle could only ran 40mph max. System reset itself after 1 day not driving. Diagnosed with low fuel pressure, possibly sensor switch malfunction. Dealer only uploaded vehicle with new updated software. |
| 21700 mi | I identified noise from the turbocharger. Dealer mechanic says it's normal. I'm not sure!!! |
| 40000 mi | ECU software update |
| 51000 mi | repaired tension guide |
| 59700 mi | High pressure fuel pump failed and was replaced. |
2012 Mercedes-Benz C-Class 4dr Sedan
302-horsepower 3.5L V6 7-speed shiftable automatic RWD
| 10000 mi | Engine noise on cold start; sounds like rattling, as if valve clatter. Stops after engine runs for about 30-60 seconds. Diagnosed by Dealer/Regional staff; TSB, metal fatigue, wrist pins; required removing engine and replacing all 6 pistons/rods |
2012 Mercedes-Benz C-Class 4dr Sedan
302-horsepower 3.5L V6 7-speed shiftable automatic AWD
| 29760 mi | M276 engine TSB for timing chain secondary pulley causing rattle on startup. TSB calls for anti-drain valve to be installed in each oil supply orifice serving the pulley. |
2012 Mercedes-Benz C-Class 4dr Sedan
228-horsepower 3.0L V6 7-speed shiftable automatic AWD
| 8700 mi | Oil leak |
| 45500 mi | CEL came on. Left bank misfire |
| 38000 mi | Squeezing fan belt, caused by previous repair when coolant leak caused. |
| 28000 mi | air intake sensor |
| 32240 mi C $450 |
Pulley and belt replaced for a squeek. |
| 138000 mi US $2000 |
Check engine light from vacuum lines |
2012 Mercedes-Benz C-Class 4dr Sedan
| 85560 mi C $1200 |
oil leak |
2012 Mercedes-Benz C-Class 2dr Coupe
302-horsepower 3.5L V6 7-speed shiftable automatic AWD
| 20800 mi | Rattling noise after engine start for several seconds timing chain tensioner needed check valves put in. |
2011 Mercedes-Benz C-Class 4dr Sedan
228-horsepower 3.0L V6 7-speed shiftable automatic RWD
| 70000 mi US $350 |
Emissions-secondary air pump |
| 35000 mi US $85 |
Oil change |
| 51000 mi | Replaced thermostat |
2011 Mercedes-Benz C-Class 4dr Sedan
228-horsepower 3.0L V6 7-speed shiftable automatic AWD
| 48000 mi | Engine operating temp sensor failed and was replaced under warranty. |
| 71000 mi | engine runs rough on start, exhaust has unburned fuel smell. |
| 80900 mi US $1200 |
electronic steering column ignition lock |
| 33000 mi US $300 |
Replaced Oxygen sensor bank 1, snesor 1 |
| 88873 mi US $200 |
Thermostat needed to be replaced, a code was showing. |
| 105870 mi US $260 |
Belt, Tensioner and pulleys replaced. The repair was entirely preventive, due to the mileage on the car. Also on the MB World Org site a lot of owner where stating they were having problems with their belts breaking or the tensioner locking up,or the pulley making noise. So for the few bucks and my time as the car is my daily driver I figured better be safe than sorry. |
2011 Mercedes-Benz C-Class 4dr Sedan
228-horsepower 3.0L V6 6-speed manual RWD
| 64000 mi US $780 |
Traction control lights on. Engine lost power. Dealer replaced accelerator pedal but repair was unsuccessful. |
2010 Mercedes-Benz C-Class 4dr Sedan
451-horsepower 6.2L V8 7-speed shiftable automatic RWD
| 16000 mi | Minor engine miss; also $500 to replace broken fog light |
2010 Mercedes-Benz C-Class 4dr Sedan
268-horsepower 3.5L V6 7-speed shiftable automatic AWD
| 42760 mi C $160 |
Thermostat seems to be affecting lots of customers…. |
2010 Mercedes-Benz C-Class 4dr Sedan
228-horsepower 3.0L V6 7-speed shiftable automatic RWD
| 65100 mi US $400 |
Replaced bad thermostat and housing. |
| 137000 mi US $3000 |
Engine Mounts needed to be replaced because you could feel vibration while driving. Once repaired car was noticeably smoother. |
| 39000 mi | Check engine light lit and they performed software update on engine control unit. |
| 43200 mi | PURGE VALVE STIKY OPEN CAUSING LEAK IN EVAP SYSTEM, REPLACED THE PURGE VALVE |
| 58000 mi US $80 |
Check engine light- misfire cylinder 3. Spark plugs changed. Check engine light cleared. |
| 58000 mi US $90 |
Sluggish acceleration |
| 71000 mi US $300 |
The 2nd exhaust resonater caused excessive restriction to the flow of the exhaust. Black and plugged up. Upon switching out to an aftermarket high flow dual resonator the vehicle definitely ran better. This was described earlier with the last maintenance. |
| 95000 mi US $550 |
Ignition switch malfunction. |
| 103000 mi US $730 |
Replaced the thermostat |
| 7000 mi | On cold start up the engine sounds as though there is a bearing clearance problem between the crank and front main bearing. Shop could not replicate nor hear the issue. I advised we would know when the bearing spins. |
2010 Mercedes-Benz C-Class 4dr Sedan
228-horsepower 3.0L V6 7-speed shiftable automatic AWD
| 44020 mi C $200 |
High pitch noise coming from accessory drive upper pulley. Replaced Pulleys, belt, and belt tensioner as a precaution. |
| 95600 mi US $747 |
purge valve |
| 52000 mi US $1780 |
Replaced left upstream O2 sensor. |
| 58000 mi US $1 |
Replaced air pump, which was making a noise. |
| 40000 mi | low coolant level due to extreme cold weather |
2010 Mercedes-Benz C-Class 4-door
turbocharged 4-cylinder automatic 2WD
| 83700 mi €170 |
Temperature sensor failed causing an over temperature warning to occur. Sensor replaced |
| 84940 mi | Loss of coolant, small leak from RHS engine component (sorry don't know name). Two gaskets replaced 12€ labour 130€ antifreeze 10€ |
| 86180 mi €415 |
Leak from water pump, therefore water pump was replaced |
2010 Mercedes-Benz C-Class 4-door
6-cylinder automatic AWD
| 65720 mi C $1000 |
Intake manifold needed replacing. Variable length runner malfunction for left cylinder bank. Loud engine noise past 3900rpm, loss of power. NO check engine light or codes present. Car driveable keeping under 3900rpm. |
2009 Mercedes-Benz C-Class 4dr Sedan
turbocharged 221hp 3.0L V6 Diesel 7-speed shiftable automatic AWD
| 16120 mi | Faulty glow plug. |
| 60140 mi £200 |
Replaced 3 faulty glow plugs |
2009 Mercedes-Benz C-Class 4dr Sedan
turbocharged 201hp 2.1L I4 Diesel 6-speed manual RWD
| 5952 mi | Injectors (Delphi) failed. Mercedes will make a recall of this kind of injector installed in all the C220 and C250 Blue Efficiency models as soon as Delphi can produce them Injectors failed, under warranty, but Mercedes doesn't have enough injectors to fulfill all those c220 and c250 that are breaking down. I expect to have my car in 2 or 3 weeks. This is really sad...so much tests, and about40%of the Delphi injectors |
| 63540 mi €120 |
A transmission rubber support which was changed last year had to be changed again Rubber support of the engine was damaged and was replaced |
| 65100 mi €95 |
Burn oil smell came from the engine. It was a faulty o-ring in one injector. |
| 79980 mi €500 |
Water pump leaking |
| 80080 mi €450 |
Lambda sensor failed |
2009 Mercedes-Benz C-Class 4dr Sedan
supercharged 181hp 1.8L I4 5-speed shiftable automatic RWD
| 44640 mi $450 |
Motor and transmission mounts required replacement. |
| 45360 mi $1200 |
Check engine light illuminated, engine occasionally stalled after starting. When running, no obvious driveability issues except possible decreased power output. |
2009 Mercedes-Benz C-Class 4dr Sedan
268-horsepower 3.5L V6 7-speed shiftable automatic RWD
| 67780 mi $1600 |
Engine intake manifold. One of the rods broken but the only to repair is to replace the whole manifold. Bad design from Mercedes Benz. |
| 83680 mi $200 |
Cold air intake tubes cracked due to wear and tear. |
| 120000 mi US $1600 |
2x Motor Mounts & 1x Transmission Mount |
| 86300 mi US $175 |
Oil leaking from engine oil vents |
| 16000 mi US $1900 |
Lights continuously have fault warning |
2009 Mercedes-Benz C-Class 4dr Sedan
268-horsepower 3.5L V6 7-speed shiftable automatic AWD
| 9920 mi | Lag in shifting between Drive and Reverse in transmission. Dealer noted "no problem detected", and advised that latest software was already installed. Dealer performed a reset/relearn on the transmission. |
2009 Mercedes-Benz C-Class 4dr Sedan
228-horsepower 3.0L V6 7-speed shiftable automatic RWD
| 9000 mi | When the car is cold (first driven during the day and when it's cold outside), a minute after it's started and for about 2 minutes a squeak(1 sec separating) comes from what sounds like a belt pulley. It did this last winter too. |
| 27000 mi | Cold-start metallic squeaking sound, present since new, was traced to a defective belt pulley. Pulley and also belt replaced under warranty; haven't noted problem since. |
| 68000 mi US $2200 |
Collapsed transmission mount and all engine mounts (leaking) replaced. Replaced serpentine belt and pulley. |
| 189000 mi US $2300 |
Oil leaks |
| 220000 mi US $94 |
ECM determined to be bad. Got it repaired at a computer shop. Still does not work. Engine light on. Have not driven since |
2009 Mercedes-Benz C-Class 4dr Sedan
228-horsepower 3.0L V6 7-speed shiftable automatic AWD
| 26000 mi | Cam plugs leaking and were replaced. |
| 49000 mi US $800 |
Engine mounts collapsed. Transmission mounts replaced at same time to save future labor cost. 204-240-15-17 204-240-06-18 Rear cylinder head oil centrifuge leaking. 272-010-06-31 Replaced. |
| 8000 mi | the fuel cap indicator was on, and wouldn't go off after a couple of re-fueling efforts (and of course, after tightening the cap). apparently there was no problem after they ran it through their system and did the same thing. |
| 12000 mi US $300 |
When I bought this car, the infamous salesman at the Oakland dealership assured me it was a flex-fuel car. Now, in Minnesota where getting E85 is so easy, we tried to find engine light on. I am now told not all C300 are E85 ready. |
| 60000 mi US $2000 |
Oil leaks in two places: oil leaks have been found, one from the engine and one from the transfer case. I was told that it's typically found on all wheel drive vehicles (for Mercedes I assumed). |
| 139000 mi US $450 |
thermosat stuck open |
| 242000 mi US $1500 |
Motor mounts (2), and Transmission mount (1) |
2009 Mercedes-Benz C-Class 4dr Sedan
228-horsepower 3.0L V6 6-speed manual RWD
| 179000 mi US $4000 |
Flap regulating flow of air to intake manifold broke |
2008.5 Mercedes-Benz C-Class 4dr Sedan
turbocharged 168hp 2.1L I4 Diesel 5-speed shiftable automatic RWD
| 52000 mi | Transmission lag on "take off". Software update seems to have fixed the issue. |
2008.5 Mercedes-Benz C-Class 4dr Sedan
supercharged 181hp 1.8L I4 6-speed manual RWD
| 79980 mi | Car started misfiring then refused to start. The cam gears were damaged and caused the cam to skip a few teeth and gave a cam sensor fault. Engineer replacing valves and valves guides. Cost of repairs was R33500. Luckily had an extended warranty. |
2008 Mercedes-Benz C-Class 4dr Sedan
turbocharged 134hp 2.1L I4 Diesel 5-speed shiftable automatic RWD
| 74160 mi A $2000 |
EIS module. Car was terminally dead had to be loaded onto a truck and taken to the dealer. |
| 85560 mi A $300 |
egr valve failed black smoke from exhaust found ruptured pipe between intercooler and turbo |
| 89900 mi | Poly Belt tensioner failed |
| 9300 mi | Small increase in fuel consumption Checked.No problem found. |
2008 Mercedes-Benz C-Class 4dr Sedan
supercharged 181hp 1.8L I4 5-speed shiftable automatic RWD
| 82460 mi €2000 |
Chain problems and propshaft bearing |
2008 Mercedes-Benz C-Class 4dr Sedan
supercharged 154hp 1.8L I4 5-speed shiftable automatic RWD
| 63240 mi $1000 |
Replacement of secondary air flap actuator |
| 79980 mi $2800 |
Replaced the steering lock ECU which had malfunctioned and immobilized the car. Replaced camshaft magnet clutch together with plug and seal ring, as these were leaking oil. |
2008 Mercedes-Benz C-Class 4dr Sedan
268-horsepower 3.5L V6 7-speed shiftable automatic RWD
| 54000 mi US $280 |
Leaking water from cylinder block. Replaced expansion plugs. |
| 13000 mi | We began to notice a shifting problem as the car which has gotten worse as the mileage increased. It would "stick" or not downshift quickly. The software upgrades were installed via the MB network to the car and this improved the problem. MPG increased! |
| 131100 mi US $350 |
Oil Cover leak |
| 39000 mi | Engine sensor. |
| 34880 mi $200 |
Check Engine light warning on dashboard. Dealer cleaned ignition system and some engine parts. |
| 12000 mi | Check engine light came on. Dealer reported it was an issue wit a sensor, reflashing the computer fixed the error. |
| 16000 mi | Coolant leak on freeway - loose hose; covered under warranty. Coolant leak on freeway - loose hose; covered under warranty. Fogging in headlights (Xenon) - MB states this is 'normal'; Software upgrade to Media player (media player would lock-up malice Seat rails replaced (previous complaint now resolved |
| 18000 mi | Retrofit Adapter Wiring Harness on Camshaft Adjustment Solenoids |
| 36000 mi US $175 |
Crank position sensor malfunctioning -- replaced. |
| 34000 mi US $800 |
Transmission mounts on the way to collapsing. |
2008 Mercedes-Benz C-Class 4dr Sedan
268-horsepower 3.5L V6 7-speed shiftable automatic AWD
| 44640 mi | EIS (electronic ignition switch) module replaced. |
2008 Mercedes-Benz C-Class 4dr Sedan
228-horsepower 3.0L V6 7-speed shiftable automatic RWD
| 31000 mi | Transmission bit slow to downshift. Updated software. |
| 21000 mi | Exhaust Cam Sensor had failed |
| 988 mi | replace right side cylinder head and valve cover due to crack causing loss of oil |
| 97000 mi US $100 |
replaced two cam sensor magnets on intake due to CEL. Easy DIY with BOSCH parts. Oil leaks through seal into electrical connector causing CEL and issue with cam timing. Previous replaced cam sensors on same bank - but I think magnets was actually what issue is. Common problem. |
| 104000 mi US $1250 |
Temp warning light came on after short trip. Mechanic read codes - thermostat issue and cooling fan issue. Replacing both. |
| 84000 mi US $1300 |
Car would not start had to tow to Mb specialty shop. Electronic Steering column lock and Eis system replaced. |
2008 Mercedes-Benz C-Class 4dr Sedan
228-horsepower 3.0L V6 7-speed shiftable automatic AWD
| 116000 mi US $45 |
Replaced serpentine belt and idler pulley. The serpentine belt was damaged and caused the pulley to fail. |
| 100000 mi US $66 |
failed idler wheel bearing. Diagnosed and repaired in 1 hour |
| 124000 mi US $750 |
Ignition switch failed, stranding car. Flatbedded to dealer via Merceds Benz Roadside assistance |
| 7000 mi | Short in fuel sending unit. Fuel pump and sending unit replaced and computer system reflashed. |
| 7000 mi | Fuel level sending unit was bad. Fuel sending unit replaced. |
| 6000 mi US $500 |
Valve stem caps fused with sensor. |
| 24000 mi US $13 |
transmission lagged from reverse to drive |
| 24500 mi | Idler pulley replaced |
| 13000 mi US $380 |
Auto transmission shifting too erratically and frequently for no reason. Software update appears to have corrected the problem. Vehicle was "lurching" forward when coming to a complete stop as transmission shifted back into first gear. Told there was a software update for this. Apparently corrected problem. Pronounced accelerator lag from stop. Software update makes significant improvement, but issue still present to a minor degree. My next MB will be a manual shift though. |
| 17000 mi | Apparently the transmission ECU died. Car would only run in limp home mode. ECU replaced (3x actually) and trans oil replaced. |
| 38000 mi | Check engine light something with Camshaft, manifold? |
| 60000 mi US $600 |
Check Engine light, cam magnets need replacement. |
| 68000 mi US $2500 |
Idler pulley, serpentine belt replaced |
| 39000 mi | Engine would turn over, but not start or even fire. Had to be flat-bedded to dealership. Dealer could not find any problem. Car started right up for them. They did go ahead and update engine software while it was there. Car now running fine. |
| 53000 mi | Transmission was trying to start in two different gears. Would jerk free. No CEL. Dealer determined it needed software update. Car traded the following week. |
| 17360 mi | cure oil leak |
| 47120 mi C $1400 |
Replaced engine and transmission mounts |
| 50000 mi US $349 |
The belt tensioner was broken and had cut part off the belt |
| 12400 mi | Car still takes forever to reach operating temperature. Nine km commute to work isn't enough at close to 0 degree Celsius temperatures, whether city or highway. This hurts fuel economy. Does thermostat stay open? |
| 30380 mi | Low Oil light kept coming on. Dealer changed sensor, and it was worse. I had to go back, and they changed the sensor's connector. No more problem. |
| 52000 mi | 2. Fluid leaking from cam plugs. Replaced cam plugs. 3. Vibration felt when stopped (with foot on brake). Replaced motor mounts to correct the problem. Performed service action SC-2012070002. Camshaft adjustment solenoid may leak oil due to settling properties of seal and the engine wiring harness will be retrofitted with four adapter harnesses as a precautionary measure. |
| 13344 mi | Vehicle was towed to the dealer due to having a very noticable bogging of the engine/ feeling of a slipping transmission. After 5 days, dealer neglected to find any problem. |
| 17000 mi | Vehicle was brought to the dealer with the same bogging down problem. Master Technician test drove the car with me but the problem would not re-occur. Problem does exist. |
| 19000 mi | Check engine light comes on while driving. Brought to dealer, code shows that emissions system is inop. Left and right air pump switches get replaced. Issue is solved. |
2008 Mercedes-Benz C-Class 4dr Sedan
228-horsepower 3.0L V6 6-speed manual RWD
| 33480 mi | Accessory pulley - bearing noisey |
| 38000 mi US $130 |
2nd time serpentine belt replaced and this time the upper guide pulley and the tensioner were replaced. Manufacturers defect in my opinion. |
| 42000 mi US $91 |
Serpentine belt was coming apart and the tensioner was squeaking. Also replaced a bad pulley. |
| 71000 mi US $685 |
Thermostat failed. Thermostat replaced. |
| 60000 mi US $15 |
Leaking oil from camshaft access port plug |
| 43200 mi | Serpentine belt pulley bearing pending impingement. (Squealing- bearing going bad). Belt beginning to show damage. Steering key lock system failure-Key would not start vehicle. Required replacement key lock mechanism. |
| 63000 mi US $280 |
Schedule B5 maintenance with oil change. Camshaft sensor indicated in codes. Nothing done about it yet. |
| 42000 mi US $130 |
Cam positioning sensors were replaced with no labor charge. Engine light prevented smog check. |
| 76000 mi | Cam Sensors triggering engine warnign light, 2nd time of this same issue, same repair as previous- replace cam adjuster solenoids. |
2008 Mercedes-Benz C-Class 4dr Sedan
201-horsepower 2.5L V6 7-speed shiftable automatic AWD
| 57400 mi C $400 |
Cylinder misfire. Fuel injector defective |
| 68200 mi C $600 |
exhaust crank sensor defective |
2007.5 Mercedes-Benz C-Class 4dr Sedan
supercharged 181hp 1.8L I4 5-speed shiftable automatic RWD
| 89900 mi R 395 |
Over time, I sensed a squeaky-sound on early-morning startups and decided, pre-emptively, to have the serpentine belt changed. This one belt drives the alternator, HVAC and other ancillaries. its total failure means the "death"of the vehicle. |
2007 Mercedes-Benz C-Class 4dr Sedan
268-horsepower 3.5L V6 7-speed shiftable automatic RWD
| 66000 mi | Engine was leaking oil from rear of left cylinder head. Plugs on head replaced per TSB. |
| 68000 mi | Pulley making noise, noticed after reading TSB. |
2007 Mercedes-Benz C-Class 4dr Sedan
228-horsepower 3.0L V6 7-speed shiftable automatic RWD
| 39000 mi US $90 |
Check Engine light kept going on and off. From online research I determined that this is a problem with the CAM sensor magnets. There is a known issue with the part, which has been redesigned. Replaced with updated part. |
| 82000 mi US $100 |
Thermostat stuck open causing engine to run cool. Replaced as DIY with parts from Amazon. |
2007 Mercedes-Benz C-Class 4dr Sedan
228-horsepower 3.0L V6 5-speed shiftable automatic AWD
| 126000 mi US $650 |
Bad plug cables; oil leak on top end |
| 137000 mi US $1200 |
Electronic Ignition Died. Had to replace key and entire EIS system because of security constraints. |
| 55800 mi C $2000 |
solenoid went... |
| 34200 mi US $850 |
mass air flow sensor, cam shaft sensor |
| 29000 mi | Car gave a warning that oil level was low. Dealer informed me it may have been due to not enough oil put in during last oil change. Or maybe the engine is burning oil. The situation is being monitored. |
| 32200 mi | Camshaft position sensor and magnet were replaced. |
| 108000 mi US $23 |
Replaced Cam sensor magnets. 1 Was bad 3 replaced as preventative maintenance. $23 a piece. |
| 72000 mi US $2300 |
I had a red check engine light on one morning took it in and this was the problem. Exhaust manifold so I had the work done by the dealership than sold the car |
2007 Mercedes-Benz C-Class 4dr Sedan
201-horsepower 2.5L V6 7-speed shiftable automatic RWD
| 42000 mi | Cam shaft sensor went bad. |
| 71500 mi | Check engine light came on. Car idled rough. They Removed and Replaced the Intake manifold. Check Engine light came on. It was diagnosed as a bad Catalyst. Covered by emissions warranty. Feel that intake was cause, but MB won't admit to this, as intake would then also fall under emissions warranty. Upon test drive for the other problem, it was found to be "missing." A computer malfunction caused the misfiring, which caused the cat to pack up. |
| 68900 mi US $363 |
Coolant Thermostat Sensor replaced. |
| 15000 mi | The automobile believed its crankshaft to be off of alignment. It turned out to be only a malfunctioning sensor. |
| 36600 mi | I floored it while really low on gas, which causes a pressure discrepancy within the fuel pump, which turned on my check engine light. Turns out no problem. |
| 44300 mi US $937 |
Fuel pump seal cracked |
| 83000 mi US $231 |
Fuel pump failed completely. Replaced fuel pump assembly. |
| 92000 mi US $380 |
Engine cooling fan failed. Replaced engine cooling fan assembly. |
| 30700 mi | Check engine light came on. I scanned it, came out with code P0015. Took to dealership. They got MB codes 0060, 0276. They replaced right side exhaust camshaft solenoid and left intake camshaft solenoid. |
| 51000 mi US $45 |
Replaced two more, one intake one exhaust, Camshaft magnets. The first two sensors went bad while under warranty, the other two failed after warranty so I replaced them in less than one hour. |
| 31300 mi US $91 |
Check engine code came on, scanned p0128, coolant temp below thermostat regulating temp. Ended up replacing thermostat with Wahler (oem supplier) thermostat. Had to use specialty G05 coolant. Easy fix. |
| 108000 mi US $100 |
Engine code: Thermostat below regulating temp blah blah blah. I changed the thermostat, solved problem. |
| 27400 mi | Right cam shaft magnet failure (check engine light came on). |
| 91000 mi US $1400 |
Cam magnets replaced |
| 86000 mi US $796 |
Cam magnets replaced due to all four spitting out codes |
| 118000 mi | Wish someone had told me that the balance shaft gear was a problem. $7,000 tab that I cannot afford. Parted out the car. |
| 110000 mi US $1000 |
waterpump |
2006 Mercedes-Benz C-Class 4dr Sedan
supercharged 154hp 1.8L I4 6-speed manual RWD
| 102300 mi R 2000 |
teeth stripped of the cam chain. replaced chains, and cams |
| 110980 mi R 150 |
tensioner and idler pulley |
2006 Mercedes-Benz C-Class 4dr Sedan
362-horsepower 5.4L V8 5-speed shiftable automatic RWD
| 121000 mi US $100 |
Leak in expansion tank and auxiliary coolant pump. |
2006 Mercedes-Benz C-Class 4dr Sedan
228-horsepower 3.0L V6 7-speed shiftable automatic RWD
| 54000 mi | the accelerator on the vehicle suck at 50+ miles per hour... vehicle crashed and was not repaired |
2006 Mercedes-Benz C-Class 4dr Sedan
228-horsepower 3.0L V6 5-speed shiftable automatic AWD
| 45300 mi US $300 |
Broken transmission mount repaired |
| 51000 mi US $99 |
Fuel injection needed tune up and recalibration. Problem discovered when Check Engine Light came on |
| 124000 mi | Ignition coil in cylinder 1 failed causing a misfire. P0301 and P0351 codes appeared. After restarting the car, codes and misfire went away. Planning to replace the coils and plugs. |
| 63000 mi US $150 |
thermostat stuck open and wife noticed the check engine light. It took a while to find the part from a non dealership. |
| 101000 mi US $300 |
Canister vent valve replaced. |
| 64000 mi US $1284 |
Fuel Pump failure. Replaced, no solution. Fuel Sensor broken and replaced. |
| 71700 mi US $105 |
Transmission malfunctioning, hard shifts, high revving. Fuel System Software update/reflash needed. |
| 75000 mi US $500 |
CEL on, replaced right intake solenoid. |
| 78000 mi US $1000 |
Balance Shaft Sprocket Problem. Est. cost over $10000. Past warranty, MB and dealer offered to pay all above $1000 because known problem. |
| 109300 mi US $130 |
CEL came on. Happens after traveling on highway then coming to stop. Gas tank sensor shows vapors escaping. CEL was cleared, no problem found, but CEL continues to be on. |
| 125700 mi US $850 |
Coolant system leak deep in the engine, replaced pump, thermostat and a few other things. |
| 133500 mi US $200 |
Small idlers were making noise, didn't need to be replaced, but such a small job, replaced them. |
| 139000 mi US $1600 |
Gasket at crank shaft leaking oil. Transmission needed to be taken out to replace the gasket--95% labor costs. |
| 156000 mi US $330 |
camshaft sensor replaced |
2006 Mercedes-Benz C-Class 4dr Sedan
201-horsepower 2.5L V6 7-speed shiftable automatic RWD
| 52000 mi US $125 |
Check engine light on while driving. Took car to a private Benz mechanic. Paid $125 for a diagnostic. Emission System Repair estimated at $1150. |
| 64000 mi US $45 |
Replaced spark plug and 1 coil pack that failed. |
| 98000 mi US $1200 |
Needed balance shaft replaced Dealer replaced 4 camshaft positioners. |
| 108000 mi US $75 |
Thermostat and coolant |
| 27000 mi | Service Campaign 025966 - Replaced whining guide pulley for V-belt |
| 52000 mi US $90 |
plastic breather at the rear of the head right by the cabin filter(o-ring was flat, but only sells with new cap), was leaking oil on to the cat, sometimes smoking at a stop and it smelled in the cabin even on recirculate. |
| 38000 mi | Balance shaft drive gear came apart. Engine and tranny needed to be pulled from car and front of engine dissembled for gear to be replaced. Bottom oil pan needed to be removed and cleaned of broken gear parts. |
| 62000 mi US $100 |
Poor idle 1 week after changing air filters. CEL came on for p170 & p0173 codes. MAF was cleaned to resolve the issue. |
| 91000 mi US $6 |
Check engine light came on. Returned a code for the MAF. Pulled MAF and cleaned it with MAF cleaning fluid. Problem resolved and reset the check engine light and it hasn't returned. |
| 89000 mi US $1400 |
fourth time car misfired in two year blowing coils and destroying intake. |
| 37300 mi US $284 |
Engine check light: Replaced right intake and right exhaust camshaft solenoids. |
| 61000 mi US $100 |
1-CAMSHAFT ERROR - DUE TO FAULTY HARNESS COVERED BY MB 2-THERMOSTAT COVERED BY EXTENDED WARRANTY |
| 76000 mi | Yet another $700 mechanical expense that was "probably" going to fix the problem. If this did not fix it, a total rebuild would be required. Car traded in. |
| 53000 mi US $194 |
CEL coolant temp would not rise to operating temp, remained below 80C. Purchased thermostat and coolant from dealer and installed myself. CEL went out in two days. |
| 84000 mi | Vacuum hose split near the throttle body threw a CEL. Apparently happened at the dealership when they replaced the plastic engine cover. Delivered to me house with CEL! |
2006 Mercedes-Benz C-Class 4-door
turbocharged 4-cylinder diesel manual 2WD
| 151900 mi $400 |
2 engine motor mounts |
2006 Mercedes-Benz C-Class 2-door
6-cylinder automatic 2WD
| 52700 mi C $775 |
Injection air pump in emission system |
| 69440 mi | PISTON/RINGS AND CYLINDER SCRATCHES. NEED ENGINE REPLACED |
2005 Mercedes-Benz C-Class
Engine not specified
| 117000 mi US $175 |
EGR value went bad |
2005 Mercedes-Benz C-Class 4dr Wagon
168-horsepower 2.6L V6 5-speed shiftable automatic AWD
| 50840 mi | water disappeared from radiator...faulty pump, improperly diagnosed on previous visit to dealership |
2005 Mercedes-Benz C-Class 4dr Sedan
supercharged 189hp 1.8L I4 6-speed manual RWD
| 42000 mi US $75 |
Fuel pumps were replaced, out of pocket cost $75, total repair bill $1500. |
2005 Mercedes-Benz C-Class 4dr Sedan
supercharged 189hp 1.8L I4 5-speed shiftable automatic RWD
| 85000 mi US $100 |
Replace camshaft magnets as they were leaking oil. |
| 92000 mi US $100 |
The alternator one way pulley was frozen. I replaced it. |
| 115300 mi US $170 |
transmission mount bad R&R part $70, labor $100 |
| 137000 mi US $235 |
miss in engine when starting. adj. mass air. |
| 95000 mi US $300 |
Cooling system thermostat. Magnetic Camshaft Sensors leaking oil. |
| 31000 mi | CEL on. Traced to leak in fuel filler neck. Replaced under warranty. |
| 36000 mi | Transmission connector leaking. Replaced. Transmission mount collapsed. Replaced. Warranty ends. |
| 101000 mi US $430 |
Thermostat failure.. replacement part was $28 and labor was $100. The rest was other maintenance. Thermostat failure.. replacement part was $28 and labor was $100. The rest was other maintenance. |
| 130000 mi US $300 |
Engine mounts replaced |
| 24000 mi | Roaring noise coming from rear of car while accelerating. Dealer initially unable to replicate, later through thorough vibration sensor exam found that the rear transmission mount had broken. |
| 61000 mi | Vacuum hose bulletin, with some seals. |
| 3500 mi | engine seal leaking |
| 79000 mi US $2009 |
Cel on for thermostat. Vacuum leak. Fuel filter replaced. Spark plugs. Battery. Alignment. Wipper blades. Service B. |
| 32736 mi | combustion chamber event (service campaign) direction thrust arm replacement (warranty) |
| 40300 mi |
| 48000 mi | Bad temp sensor - replaced. |
| 46000 mi | The check engine light came on, I took the car to the dealer. They told me it was a loose gasket, but that a recall had been ordered on it, so they were going to order the part and repair it when the part arrived. She is scheduled to go back in the 30th |
| 67000 mi | M-B dealer replaced the transmission control module. Persistent reports of sluggish shifting on the SSk variant apparently prompted this. Appears to be the subject of a TSB or "for cause" event. Replaced at no charge to us, while in for an oil change. |
| 158000 mi US $2500 |
camshaft sprocket failed. |
| 75000 mi | Check engine light, loss of fuel pressure. Couldn't find leak, reset light. |
| 85000 mi US $1000 |
Check engine light, loss of fuel pressure. Leak in fuel filler neck, needed to smoke test and replace neck and seals. |
| 113000 mi US $50 |
Oil leaking, replaced valve cover gasket. |
| 113998 mi US $150 |
Oil vac pump |
| 123000 mi US $80 |
Cam magnet sensors replacement. They were leaking oil. |
| 75000 mi US $878 |
Oil leak from Vacuum Booster, replaced. Tranny oil leak from sensor, sensor replaced. |
| 88000 mi | Cam sensor replaced under recall. minor seeping of oil was noted. |
| 51000 mi | Thermostat was stuck open |
| 57000 mi | Vacuum pump seal leaking oil on engine right side |
| 64000 mi | Check engine light and poor performance initiated visit. Service Campaign indicated that solenoid oil leaks were cause. Completed service campaign and replaced parts and car is good. Unrelated but had to replace battery this month. |
| 57000 mi US $555 |
needed hose for intake hose cost 28.00 but removal of trottle body etc to replace hose labor cost was $500.00 |
| 79600 mi US $2000 |
Vapor leak at gas tank neck repaired. Oil leak repaired. |
| 86000 mi US $600 |
Alternator pulley causing tensioner to vibrate; replace pulley and vbelt. |
| 57000 mi US $150 |
Cam magnet sensor leaking. |
| 84000 mi US $100 |
Thermostat |
| 54900 mi US $20 |
Replaced thermostat |
2005 Mercedes-Benz C-Class 4dr Sedan
supercharged 154hp 1.8L I4 5-speed shiftable automatic RWD
| 77820 mi $50 |
The M271 engine has problems with carbon buildup in the valves for two reasons: 3-hole injectors and engine oil vapors. At the moment I 'm trying to burn the carbon with a fluid added to the intake. |
| 86800 mi $400 |
change radiator |
2005 Mercedes-Benz C-Class 4dr Sedan
362-horsepower 5.4L V8 5-speed shiftable automatic RWD
| 55000 mi | same problem after driving it for 1 day |
| 86832 mi US $160 |
Engine wouldn't turn over and oil was about 2 quarts low. Filled up oil until oil level OK and drove to shop. A new crank position sensor was needed. Repair was two hours labor. |
| 123360 mi R 1000 |
Engine & Transmission mounting changed, |
| 130180 mi R 700 |
Water Pump change |
| 90000 mi US $2800 |
Replaced crank sensor Repaired several oil leaks |
| 94500 mi US $780 |
Replaced Mass Airflow Sensor |
| 106000 mi US $550 |
emissions air injection pump went out |
| 106000 mi | Replacement air injection pump for emissions control failed after a month, replaced again. |
2005 Mercedes-Benz C-Class 4dr Sedan
215-horsepower 3.2L V6 5-speed shiftable automatic AWD
| 93000 mi R 4700 |
Oxygen sensors. |
| 140520 mi R 10000 |
Fan Broke |
2005 Mercedes-Benz C-Class 4dr Sedan
168-horsepower 2.6L V6 5-speed shiftable automatic AWD
| 125000 mi US $436 |
Crank sensor replaced, and valve cover gasket replaced |
| 147137 mi US $298 |
Camshaft position sensor replaced |
| 169508 mi US $817 |
REPLACED BOTH VALVE COVER GASKETS Smelled oil - Replaced both valve cover gaskets |
| 174300 mi US $733 |
Replaced all three engine mounts. Straightened a rim Engine felt rough, Motor Mounts needed replacing. New MB OEM Motor Mounts installed |
| 174937 mi US $538 |
Water Pump replacement Water pump replacement |
| 185200 mi US $259 |
replace oxygen sensor Engine light came back on after a few days. Replace EGR Valve, cleaned EGR tubes |
| 185300 mi US $603 |
New valve cover gaskets |
| 222209 mi US $455 |
Transfer case service twice flushed with new fluid, transmission mount, oil change |
2005 Mercedes-Benz C-Class 4-door
4-cylinder manual 2WD
| 41540 mi $300 |
car is sometimes using only 3 cylinders out of 4 |
2005 Mercedes-Benz C-Class 2dr Hatch
supercharged 189hp 1.8L I4 6-speed manual RWD
| 57350 mi C $55 |
Added Adapter cables MB #2711502733 to camshaft sensor cables to prevent oil leaking into the wiring harness. Added Adapter cables MB #2711502733 to camshaft sensor cables to prevent oil leaking into the wiring harness. |
| 71500 mi C $50 |
Replace thermostat and upper radiator hose. |
| 82460 mi C $40 |
Check engine light came on. A rodent had chewed the paper pleats in the engine air filter. Vacuumed all the loose filter material. Used the metal mesh part of a furnace air filter and duct tape to fashion a screen over the air intake. Engine light cleared itself. Replaced the engine air filter. |
| 21000 mi | CEL light came on, diagnostic was coolant thermostat needed replacement. Part ordered from Germany, arrived a week later, car now fixed (1+1 days total) Installed new thermostat. |
2004.5 Mercedes-Benz C-Class 4dr Sedan
supercharged 189hp 1.8L I4 5-speed shiftable automatic RWD
| 114700 mi A $12550 |
Engine timing chain went, destroying motor. |
| 244400 mi A $6573 |
Timing chain broke again. |
2004 Mercedes-Benz C-Class 4dr Wagon
168-horsepower 2.6L V6 5-speed shiftable automatic AWD
| 72200 mi US $500 |
replace faulty crankshaft position sensor which was causing stalls and failures to start when engine was shut off warm. |
2004 Mercedes-Benz C-Class 4dr Sedan
supercharged 349hp 3.2L V6 5-speed shiftable automatic RWD
| 111000 mi US $243 |
The car was not picking up speed like it was suppose to. The valcum was clogged up. |
| 134000 mi | replace thermostat |
2004 Mercedes-Benz C-Class 4dr Sedan
supercharged 189hp 1.8L I4 6-speed manual RWD
| 62000 mi C $180 |
Cam solenoid magnet was leaking into the wiring harness, a common problem with this car. Replaced solenoid along with OEM modification of isolation wires to stop migration of oil to ECU and O2 sensors to prevent serious damage and expense |
| 63240 mi C $65 |
bought coolant temp sensor as there is an intermittent warning when the outside temp goes below -10. Will install when I have time in the summer |
| 65720 mi C $22 |
Replaced temperature sensor that controls the cooling fan and sending the temp to the instrument panel. Was giving me an error message in cold weather |
| 66340 mi C $15 |
bolts holding exhaust system to the catalytic converter broke when hitting a puddle, it was determined that they prematurely rusted out to be less then a quarter in diameter then spec |
| 75940 mi C $201 |
replace upstream O2 sensor as it was sending an error code |
2004 Mercedes-Benz C-Class 4dr Sedan
supercharged 189hp 1.8L I4 5-speed shiftable automatic RWD
| 48000 mi US $183 |
Check engine light came on. Replaced thermostat. |
| 49000 mi US $56 |
Air intake hose coming apart. Common issue on these cars. New air hose ordered and replaced. |
| 53000 mi US $400 |
The thermostat need to be replaced. The dealer quoted US$535, did not repair @ the dealer. Instead, we bought the part online ($30), and asked a independent mechanic to replace it for us ($100). Service B cost $300 |
| 97000 mi US $1250 |
Replace fuel pump and fuel level sensor. |
| 120000 mi US $300 |
Noise from kompressor. Service B. |
| 77000 mi US $900 |
Supercharger starting to make noise. Was advised it needed replacement, common problem on this car. Cost would be over $2500. Will schedule replacement in next 30 days. Update 0415: never replaced, still running fine. |
| 107700 mi US $1926 |
Battery/alternator/ESP warning lights came on multiple times when starting after car sat for 24 hours or more. Also sounded "diesel like" Replaced: Alternator clutch pulley, a/c compressor/drive belt/oil/freon. Corrected dieseling noise. |
| 113000 mi US $564 |
Check engine light came on, exhaust issue corrected, new gas cap put on. |
2004 Mercedes-Benz C-Class 4dr Sedan
215-horsepower 3.2L V6 5-speed shiftable automatic AWD
| 138260 mi C $400 |
Replaced injectors |
| 173600 mi C $300 |
Evap valve |
2004 Mercedes-Benz C-Class 4dr Sedan
168-horsepower 2.6L V6 5-speed shiftable automatic RWD
| 154000 mi £1200 |
Turbo and catalytic convertor replaced 2005 and again in 2008 |
2004 Mercedes-Benz C-Class 4dr Sedan
168-horsepower 2.6L V6 5-speed shiftable automatic AWD
| 74000 mi US $700 |
maf replaced maf replaced |
2004 Mercedes-Benz C-Class 4-door
4-cylinder automatic 2WD
| 76880 mi C $306 |
Check engine light came on and car idled really rough after stopping and putting it into park. Diagnosed as a misfire by MB. Changed spark plugs. Problem persists and now the car has to go back in. |
| 76880 mi C $285 |
Problem persists with engine misfiring. Problem could not be diagnosed by mechanics. Car was picked up and traded in at a very low price because pending repairs were disclosed. Bought a new BMW X1 which is great! |
2004 Mercedes-Benz C-Class 2dr Hatch
supercharged 189hp 1.8L I4 6-speed manual RWD
| 81000 mi US $75 |
cam position sensors Oil level sensor smog pump |
2004 Mercedes-Benz C-Class 2dr Hatch
supercharged 189hp 1.8L I4 5-speed shiftable automatic RWD
| 96000 mi US $80 |
oxygen sensor and air filter change. |
| 98000 mi US $500 |
Thermostat |
| 95000 mi | Huge issue with oil leaking out the camshaft sensor, down the wiring harness to short out coolant and O2 sensors. All sensors and harness repaired under extended warranty - oil was found all the way to the ECU. |
| 108000 mi US $300 |
A misfire diagnosis via the check engine light lead to the replacement of a coilpack and a sparkplug. Repair has fixed the problem. |
| 122200 mi US $400 |
Check engine light with multiple odd causes, believed to be tied to MAF sensor or something else. |
| 123000 mi US $800 |
MAF meter was replaced, computer was reset which ultimately corrected the check engine light. |
2003 Mercedes-Benz C-Class
Engine not specified
| 125000 mi | Too many things wrong. Most recently an engine coolant leak. Probably going into the cylinders, so maybe a head gasket leak. |
| 82000 mi | Engine idle and drive fluctuating. |
2003 Mercedes-Benz C-Class 4dr Wagon
215-horsepower 3.2L V6 6-speed manual RWD
| 64480 mi C $350 |
Replace o2 sensor |
| 66960 mi | Check Engine light - result was new Catalytic Converter installed. Parts and labour covered by Mercedes at 65,000 miles. (108,000 kilometers ) Guarantee is for 8 years and or 80,000 miles. |
| 71300 mi C $1100 |
Rough idle when cold and minor roughness felt through steering a certain speeds. Engine mounts replaced. Car is running well again. |
| 78120 mi C $2000 |
A small module that helps to start the car. |
| 80180 mi C $395 |
Cable to spark plug number four not working. |
| 81320 mi C $1485 |
Worst rainstorm in Toronto last week since Hurricane Hazel in 1954. Rain got into the ECU (engine computer)and the car wouldn't start. $400 diag from dealer, but they wanted $4746 for the repair. Got reconditioned ECU for $775 + $160 for overnight. |
2003 Mercedes-Benz C-Class 4dr Wagon
168-horsepower 2.6L V6 5-speed shiftable automatic AWD
| 18322 mi | Control Module |
2003 Mercedes-Benz C-Class 4dr Sedan
supercharged 349hp 3.2L V6 5-speed shiftable automatic RWD
| 62000 mi | Supercharger bearing was bad. Replaced belt at the same time. |
| 84000 mi US $200 |
Replaced all radiator hoses and intercooler pump. |
| 249000 mi | Blew my timing chain and destroyed engine. To expensive to fix and not worth fixing at this point. Will probably donate or sell the car for parts. |
2003 Mercedes-Benz C-Class 4dr Sedan
supercharged 189hp 1.8L I4 5-speed shiftable automatic RWD
| 44000 mi US $85 |
Car lost power,stuck in high gear(automatic),then CEL came on.Car was serviced by dealer since new,wanted more $ to just take a look than I'm willing to pay. Found dirty air filter myself(looked never replaced),replaced & clean AMS, fixed! |
| 49300 mi US $1500 |
one of the hoses or pipes was cracked & caused the check engine light to turn on. |
| 61687 mi US $177 |
apparently there was an oil leak |
| 68306 mi US $2186 |
Cylinder 3 would misfire randomly(mostly during idle) and cause engine to convulse. work around was to increase idle rpm to >1k. |
| 90751 mi US $34 |
Oil leaking from the top of the engine most likely from the oil cap. Gasket replaced. |
| 92656 mi US $79 |
Secondary O2 air sensor failure. Replaced sensor. |
| 136672 mi US $1235 |
Fuel pump failure. replaced fuel pump |
| 23560 mi | Accelerator pedal not working properly - not responding to kick-down acceleration. Parts replaced under warranty. |
| 26040 mi | Accelerator pedal not working properly, again not responding to kick-down acceleration. Problem localized to fuel injectors, which requires major engine work. Service appointment booked. |
| 26660 mi | Engine repair (under warranty) for fuel injectors not working properly. |
| 39460 mi | two small vacuum pipes running under engine plastic cover. The pipes had cracks due to age and heat |
| 73780 mi | Replaced camshaft magnets to prevent oil leaks |
2003 Mercedes-Benz C-Class 4dr Sedan
215-horsepower 3.2L V6 5-speed shiftable automatic RWD
| 54000 mi US $125 |
Replaced crankshaft position sensor after car stalled. |
| 81000 mi US $470 |
Replace water pump. |
| 83900 mi | Replaced main radiator hose that is leaking. |
2003 Mercedes-Benz C-Class 4dr Sedan
215-horsepower 3.2L V6 5-speed shiftable automatic AWD
| 55000 mi US $400 |
One bad coil pack was replaced and all spark plug wires were replaced. |
2003 Mercedes-Benz C-Class 4dr Sedan
168-horsepower 2.6L V6 5-speed shiftable automatic RWD
| 99000 mi | Crankshaft Position sensor replacement |
| 118000 mi US $359 |
replaced a catalytic converter (rebuilt) |
| 141500 mi US $275 |
car starts after several times try..check engine light on; diagnostic function test; faulty crankshaft position sensor. replace with new. |
| 74000 mi | Slight vibration - motor and transmission mounts replaced. |
| 85300 mi US $450 |
Left catalytic converter |
2003 Mercedes-Benz C-Class 4dr Sedan
168-horsepower 2.6L V6 5-speed shiftable automatic AWD
| 109000 mi | Shop damaged sensor while repairing starter. Reset code, but it returned. Shop replaced for no charge. Works as intended now. |
| 156000 mi US $380 |
Crankshaft alignment sensor was replaced by Midas ($380.00) because the dealership wanted $950.00 to do the same thing. |
2003 Mercedes-Benz C-Class 4-door
turbocharged 5-cylinder diesel automatic 2WD
| 166160 mi €180 |
broken gasoline line (from filter to pump) |
2003 Mercedes-Benz C-Class 2dr Hatch
supercharged 189hp 1.8L I4 6-speed manual RWD
| 107880 mi C $326 |
Oxygen Sensor replaced, upstream sensor. |
| 117800 mi C $1050 |
Bolts and flange repaired |
| 125240 mi C $55 |
Check Engine light, code turned off Check engine light reappeared, replaced downstream O2 sensor, turned light off, additional cost $277 |
| 132260 mi C $660 |
Check Engine light on, this is multiple times for this issue, seems difficult to diagnose. |
| 133300 mi C $49 |
Another Check Engine light, light reset, seems to be air related, or fuel EVAP, Very frustrating. |
| 133300 mi C $465 |
Check engine light, to do with threshold being reached one time on oxygen sensor |
| 63000 mi US $150 |
Check engine light. Downstream O2 sensor. |
| 65000 mi US $500 |
Check engine light. Upstream O2 sensor. |
| 81000 mi US $1600 |
cracked oil filter cap |
| 93620 mi C $800 |
Check engine light coming on due to thermostat. |
| 53940 mi C $960 |
Cracked intake box after the MAF. Still don't know how it happened, was throwing the computer into fits. Over work the O2 sensors - so they failed. the box had to come from germany hence the long down time. |
| 118000 mi US $2000 |
Timing chain stretched and intake cam adjuster failed. |
| 118000 mi US $3000 |
Timing chain stretched and skipped causing valve damage. The head, timing chain, timing chain tensioner and the one of the guide rails was replaced along with one of the cam adjuster magnets. Also replaced coolant pipes (since in there) and vacuum lines (had failed). |
| 120700 mi US $40 |
Upstream Oxygen sensor went bad. CEL and pulled codes. |
| 152000 mi US $45 |
Replaced coolant reservoir and cap. They were both showing signs of starting to fail. The edges of the reservoir were starting to show signs of the plastic checking and drying out and the system was losing pressure. It wasn’t actually leaking yet, but, the cap was releasing steam prematurely and the coolant level was dropping (although there weren’t any visible drips or puddles under car). |
2003 Mercedes-Benz C-Class 2dr Hatch
supercharged 189hp 1.8L I4 5-speed shiftable automatic RWD
| 53940 mi C $3700 |
Cam shaft seal leak caused oil to enter the electrical system compromizing the ECU, MAF, O2 sensors & wiring harness... recall in the USA but not recognized in Canada. mercedes Canada covered 50% of parts no labor. Coolant line leaking into the transmission, another known problem by mercedes yet no Canadian recall. radiator was repaired and transmission was tripple flushed, Transmission will now soon have to be replaced 1,2 clutch (auto) is toast. |
| 88040 mi C $2000 |
Went in for an oil service, turned out there was a leak at the cam cover where oil got into the wiring harness damaged (though still working) some of the emissions equipment (EGR solenoid). |
| 103540 mi C $600 |
sensor malfunction. Wrong trouble code. Dealer resolved. |
| 111600 mi C $1800 |
Check engine light came on. Replace oxygen sensor, EGR valve, control module. |
| 104160 mi C $1200 |
Replaced EGR valve, EGR control module. Is feeling ripped off as car was in for full service inspection 2 months ago at $1100.00 Replaced O2 sensor. |
| 137600 mi C $1200 |
I am annoyed that CEL came on and an O2 sensor needed to be replaced 2 weeks after I spent $1800 for a full service at MB. MB charged to redo everything they did 2 weeks ago. |
| 122500 mi US $900 |
Belt tensioner failing. Replaced unit and belt |
| 162500 mi US $600 |
Check engine light. Discovered a cracked hose under intake manifold. |
2003 Mercedes-Benz C-Class 2dr Hatch
215-horsepower 3.2L V6 5-speed shiftable automatic RWD
| 82000 mi | Oil was leaking from under engine....was told a seal had broken...the dealer repaired it...leaked the next day.....repaired it again..has not leaked since-- |
2003 Mercedes-Benz C-Class 2dr Hatch
| 78000 mi US $2000 |
Small fuel leak, could smell in the cabin |
2002 Mercedes-Benz C-Class
Engine not specified
| 77500 mi C $450 |
Oxygen sensor and one of the rear turn signal bulbs had to be replaced. |
| 116500 mi US $300 |
valve gasket needed replacing |
2002 Mercedes-Benz C-Class 4dr Wagon
215-horsepower 3.2L V6 5-speed shiftable automatic RWD
| -Fuel pump electr fault -Brake lamp tailamp unit cont -oil leak -ps pump hyd -tighten fr door lock -engine mount fr/too weak | |
| -ignition housing where key is inserted | |
| -MAF Sensor |
| 176000 mi US $1500 |
Fuel pump |
| 42036 mi US $850 |
Replacement of engine gaskets. The beginning of a period of moderate restoration. I acquired this car from a dealer knowing it to be in need of a substantial but unknown amount of repairs. So far, I'm getting off easy. Replacement of engine gaskets. The beginning of a period of moderate restoration. I acquired this car from a dealer knowing it to be in need of a substantial but unknown amount of repairs. So far, I'm getting off easy. |
| 46000 mi | Leaking rear seal repaired |
| 81900 mi | Fuel fill/overflow evaporator. Not totally fixed despite multiple trips to replace the evap Valve and associated hoses. Engine runs fine. Mechanic suspects valve is just slow, largely irrelevant to the functioning of the engine and not worth further cost. |
| 96700 mi | Check engine light came on. Nothing done yet. Apparently, it relates to some filter that's starting to go. It'll be replaced at the next major service (100000), probably in January. |
| 105000 mi US $175 |
Replace rear trans mount |
| 85200 mi US $120 |
Replaced the serpentine drive belt and belt tensioner (which was making some minor noise). |
2002 Mercedes-Benz C-Class 4dr Sedan
supercharged 349hp 3.2L V6 5-speed shiftable automatic RWD
| 101000 mi US $200 |
Replace intercooler pump - replaced with F150 SVT pump. |
| 86800 mi A $1100 |
noisy pulleys Misfiring after spark plugs |
| 93900 mi A $700 |
Burst radiator hose, damaged thermostat |
2002 Mercedes-Benz C-Class 4dr Sedan
215-horsepower 3.2L V6 5-speed shiftable automatic RWD
| 124000 mi US $140 |
Replaced driver side exhaust sensor (before the cat). |
| 146600 mi US $340 |
Leaking water pump. Replaced water pump, found a new Hela water pump replacement for $100 on the internet and my local mechanic replaced it for $240. Total cost $340. |
2002 Mercedes-Benz C-Class 4dr Sedan
168-horsepower 2.6L V6 5-speed shiftable automatic RWD
| 56000 mi | Driver side catalyst was replaced. |
| 96000 mi US $500 |
Driver Side Catalytic converter was replaced. |
| 64000 mi | Oil recirculatory cover leaks, other oil leaks. |
| 64000 mi | Sold car after quoted quadruple digits to repair a severe misfire. |
| 87000 mi | A variable valve timing sensor that rides close to camshaft contacting the cam shaft. Tapping sound that might have diagnosed by some mechanics as loose timing chain. Checked my timing chain, found no issue. All sources point to $1400 camshaft repair. Needed new valve cover gaskets. |
| 92000 mi US $45 |
Belt tensioning pulley broke and was replaced. |
| 94000 mi US $260 |
Replace valve cover seals, vacuum hoses, spark plugs |
| 117000 mi US $230 |
Replaced the coolant thermostat |
| 120000 mi US $40 |
Broken idler pulley and serpentine belt were replaced |
| 146000 mi US $20 |
Replaced serpentine belt |
| 31700 mi US $45 |
Car misfired while driving. May have been bad gas. After repair shop cleared DTC, no more problem. |
| 60000 mi US $45 |
Replaced faulty crank shaft position sensor. |
| 124000 mi US $350 |
Replace MAF, Gasket at MAF, MAF adapter, gasket between MAF adapter and throttle body Pax side breather cover on valve cover leak, oil leaked onto wires, so replaced all 12 wires and spark plugs |
| 155000 mi US $105 |
Replace 2 injectors |
| 59203 mi | Warranty replacement of ignition cables. |
| 87068 mi US $64 |
Replace both valve cover gaskets. |
| 92255 mi US $295 |
Car would crank but not start. Problem was intermittent. Check Engine light activated after first non-start episode. Faulty crankshaft position sensor replaced. Replace failed crankshaft position sensor |
| 98700 mi US $150 |
Replaced idler pulley for serpentine belt. Pulley was beginning to crack and mechanic discovered the issue while performing routine Service B maintenance. |
2002 Mercedes-Benz C-Class 4dr Sedan
| 97960 mi $60 |
There has been a slow coolant leak the last month and on further investigation saw the leak was from the water pump which I replaced. Thank you |
2002 Mercedes-Benz C-Class 2dr Hatch
supercharged 192hp 2.3L I4 6-speed manual RWD
| 230000 mi US $153 |
Check engine code indicated problem with secondary air injection valve. Replaced both Secondary Air control valve and check valve |
| 59000 mi US $380 |
Replaced electrical connector to cam position sensor |
| 18600 mi | Variable camshaft tensioner, on warranty |
| 52080 mi C $30 |
PCV and Hose degraded and causing leaks |
| 57440 mi C $120 |
Changed tensioner pulleys |
| 64480 mi | Magnetic Cam sensor leaking, change out with new OEM. Gasket bonded to the block with magic German sealant. Hint: Apply heat with chisel. |
| 65720 mi | Oxygen sensor |
| 70680 mi C $114 |
EGR valve failed. Very hard to do the first time. |
| 75000 mi | Rattling noise coming from engine on startup. Replaced timing chain tensioner and camshaft adjuster. Fuel leak from the injection rail. Replaced some small part (I think pressure regulator) that leaked. |
2002 Mercedes-Benz C-Class 2dr Hatch
supercharged 192hp 2.3L I4 5-speed shiftable automatic RWD
| 51000 mi US $265 |
Replaced Radiator Fan Assembly; Controller Unit damaged by antifreeze that dripped down the power cables--found a pool of it inside the unit. Unknown source. Replaced Radiator Fan Assembly; Controller Unit had received water damage from antifreeze that dripped down the power cables. |
| 81000 mi | OBDII code scanned. EGR Check valve cleaned and reinstalled. |
| 112000 mi US $1366 |
1 of 2 fuel pumps (located inside gas tank) failed. Had car 10 days. Returned for additional 7 days, could not duplicate my report of continued poor gas mileage. Reset computers - working now. Had loaner, no problem. |
| 124000 mi US $2200 |
Blown head gasket. Coolant light came on - was leaking coolant at right rear of engine. Did not mix oil and coolant. |
| 126700 mi | Oil leak. Determined supercharger is leaking. Declined repair. I feel this is related to alt change. Driving home after alt changed, burning oil smell. Never happened until alt was changed. Suspicious coincidence. Shop says no. |
| 130200 mi US $447 |
OIL, not antifreeze dripping. Told me I need a new water pump. Also want $1800 to fix various hoses/leaks, 'none major' or in imminent failure! Car smelled so bad it was going back yesterday, but ultimately didn't. My son will look at it. Was told in August that my super-charger was leaking and needed to be replaced at $2300. Car in for oil and brakes 12/31/13, super-charger 'fine, no leaks or problems'!!! Miraculous recovery I guess |
| 141000 mi US $350 |
Cat converter replaced Both engine and one transmission motor mounts were replaced |
| 105000 mi US $70 |
Motor Mounts |
2002 Mercedes-Benz C-Class 2dr Hatch
| 71920 mi A $34 |
after air/con re-gas car developed multiple abnormal engine noises & Altenator Warning Message> Checked with OBD 11. reading " air con excessive torque " > return to shop for fix Now seemed OK (not advised what was done ) At next startup Excessive Noise ( Radiator Fan Running ??from cold ??) Check Coolant Temp;Sensor > meter Reading wrong + Plastic part sensor of completely cracked (no leak ?) eventually replaced sensor $8 from C now normal ( suspect gas in aircon was excessive. |
2002 Mercedes-Benz C-Class 2-door
Engine not specified
| 70000 mi US $100 |
Secondary Air Injection check valve |
2001 Mercedes-Benz C-Class
Engine not specified
| 104160 mi | water got under the hood, flooded and killed most electrical components (front SAM, etc) |
2001 Mercedes-Benz C-Class 4dr Sedan
turbocharged 114hp 2.1L I4 Diesel 6-speed manual RWD
| 227540 mi €5000 |
Leaking turbo destroyed intake manifold, both needed to be replaced |
| 227540 mi €200 |
Car warming slowly, main thermostat needed to be replaced along with the small thermostat for heater booster |
2001 Mercedes-Benz C-Class 4dr Sedan
215-horsepower 3.2L V6 5-speed shiftable automatic RWD
| 116560 mi $58 |
Broken idler pulley. Changed pulley and serpentine belt. |
| 43400 mi C $600 |
fix catalytic converter |
2001 Mercedes-Benz C-Class 4dr Sedan
168-horsepower 2.6L V6 5-speed shiftable automatic RWD
| 34750 mi US $1050 |
Replace front SAM module because car will not engage the starter motor. Replace battery |
| 63000 mi US $1676 |
Crankshaft position sensor. Transmission fluid service |
1999 Mercedes-Benz C-Class 4-door
8-cylinder automatic 2WD
| 140000 mi US $1800 |
Exhaust corroded. Had to wait for replacement from Germany. No aftermarket parts available |
| 149000 mi US $422 |
Replaced accelerator position sensor. |
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