Mercedes-Benz C-Class Mercedes-Benz C-Class

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Mercedes-Benz C-Class repairs by problem area

Engine (37%)

Transmission and Drivetrain (0%)

Brakes and Traction Control (3%)

Suspension and Steering (10%)

Electrical and Air Conditioning (44%)

Paint, Rust, Leaks, Rattles, and Trim (0%)

Other (6%)

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Chart based on 1272 repairs.
See TSBs and recalls for the Mercedes-Benz C-Class.

Mercedes-Benz C-Class brake repair cost distribution

$2500+ (8%)

$1000 - $2499 (17%)

$500 - $999 (22%)

$100 - $499 (19%)

< $100 (33%)

Chart based on 36 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2013 Mercedes-Benz C-Class 4dr Sedan

311-horsepower 4.4L V8 6-speed manual RWD

4340 mi Run Flat Indicator Inoperative, ABS sensor was found faulty 

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2013 Mercedes-Benz C-Class 4dr Sedan

228-horsepower 3.0L V6 5-speed shiftable automatic AWD

14000 mi

US $699
there was a vibration in the steering 
21300 mi The bushings were worn-out and had to be replaced. 
24000 mi A wrong wheel speed sensor on the front right passenger side wheel was causing the check engine light to be on, and was causing ABS to be disabled. 

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2013 Mercedes-Benz C-Class 4dr Sedan

207-horsepower 3.8L V6 4-speed shiftable automatic FWD

11000 mi Rattle developed from the aluminum trim around the central HVAC vents. It required a new piece of trim to eliminate the noise. 
24000 mi Parking brake was sticking. Pedal replaced. 

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2012 Mercedes-Benz C-Class 4dr Sedan

302-horsepower 3.5L V6 7-speed shiftable automatic RWD

38000 mi Bluetooth address book adding multiple entries 
55000 mi

US $100
Brake caliper was stuck on one pin and caused the right front rotor to get a groove on the back. Replaced both front rotors. 

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2010 Mercedes-Benz C-Class 4dr Sedan

228-horsepower 3.0L V6 5-speed shiftable automatic AWD

24300 mi Sunroof would not open all the way. Dealership replaced motor under warranty. 
25000 mi Returned to dealership to get sunroof fixed for the second time. Overhead control panel faulty again. Removed and replaced under factory warranty. Heard clunking sounds from front when going over bumps at a slow speed. Brought vehicle in the dealership. Tech found out that noise are coming from front struts. Both left and right struts removed and replaced (FP No. 204-323-29-00). Sway bar links (204-320-07-89 and 204-320-22-89) replaced along with struts mentioned earlier. 
26000 mi

US $433
Heard squealing noise when letting off brakes and turning left. Took it in to dealership. Tech verified it's coming from front right wheel. Tech found seized brake calipers. Front brake calipers replaced. 
11000 mi Sat radio does not work. Repair would have required removal of the rear window, and I was not ready to have that type of work done. 
16000 mi Faint hiss coming from area of brake pedal, that stopped with depression of the pedal. Problem was traced to the brake booster, which was replaced, and the noise is gone.  
20000 mi Sat radio works intermittently, and worked the day I had the car in for service. No codes read, so they did not attempt to repair. 
24000 mi My sat radio problem has finally been resolved. For C Class owners with the panoramic roof option, there is a service bulletin that addresses intermittent or no sat radio reception. 
26000 mi Sat radio showing "no service". Faulty radio module replaced. 
29000 mi Replaced sat antenna. 
33000 mi

US $775
Intermittent function of the Sattelite radio and iPod interface. Driver side A pillar trim loose and water leaking on to outside of window. No internal leak. 
44000 mi

US $312
Not a leak into interior, but the driver side A pillar trim was leaking on to outside of driver side door glass. Replaced trip piece and tightened clamps. 
52000 mi

US $1780
Replaced left upstream O2 sensor. 
59000 mi

US $1
Replaced air pump, which was making a noise. 
67000 mi Bearing in transmission failed. Cost of repair was $6800.00, so traded as is, for a 2016 Volvo XC70. 

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2010 Mercedes-Benz C-Class 4dr Sedan

-horsepower 5-speed shiftable automatic RWD

58000 mi

US $80
Check engine light- misfire cylinder 3. Spark plugs changed. Check engine light cleared. 
68700 mi

US $750
Car wouldn't start, would not turn over. Electronic steering lock had failed and needed to be replaced. 
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. 
73300 mi AC compressor and dryer (extended warranty coverage) circuit board for rear lights, both sides, wire & board melting, (RECALL) noted on the rear wire issued. 
74000 mi Steering Lock servo froze and needing replacement. Would have been $1,400 without the extended warranty. 
74000 mi

US $235
Jump started by tow company, spouse took to dealership, diagnosed with poor battery, replaced by dealership. 
76000 mi

US $10
Head lights turning yellow, very opaque. Used PlastiX Mequires brand and sand paper in 3 stages to clean, and finally a rotary buffer to finish off. 
77000 mi Driver side power window unit non-functional, manually close & open. 

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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. 
79760 mi

C $886
Brake Booster internal valve malfunction causing engine vacuum leak, required replacement of entire booster. Brake booster and necessary seals between booster and master cylinder replaced, brake system required bleeding afterwards. 
91760 mi

C $450
Seal at high pressure line connection blew, power steering pump ran dry and malfunctioned, needed to be replaced. Power steering pump replaced, fluid drained, refilled and bled. 

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2009 Mercedes-Benz C-Class

Engine not specified

67580 mi

R 14700
The car did not want to start, the dealer said it is a steering lock that must be replaced 

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2009 Mercedes-Benz C-Class 4dr Sedan

268-horsepower 3.5L V6 7-speed shiftable automatic AWD

3100 mi Center mounted LED brake light assembly failed and had to be replaced Rubbing sound from brakes when not applied 
9920 mi Nav system showed incorrect location and incorrect direction of travel - no satellites tracked (vs. 9 or 10 normally) - intermittent problem - dealer could not replicate during service inspection 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. 
18600 mi Navi system unable to see any satellites, therefore giving false location & unable to track vehicle movements. Dealer found repair bulletin regarding wiring harness behind rear headliner, & made the recommended fix. Navi now working. 
21700 mi Interior driver's side door handle broke, door could only be opened by opening window and reaching outside top use exterior door handle (very embarassing in a 2 yr old $50k car. Dealer ordered part and repaired. Satellite radio not working most of the time (NO SERVICE). Occassionally it will work for a few minutes but then stops. I think it's related to Nav antenna fix, dealer says all hardware checks OK. Waiting for software update from M-B. Dealer tried replacing software first, did not work. then replaced satellite radio unit, Did not work. then replaced sat. radio antenna. finally worked. antennas seem to be a problem on this vehicle - both GPS and Sat. Radio failed 
26040 mi Battery failed and not holding charge. Dealer found 2 failed relays. Battery and relays replaced. 

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2009 Mercedes-Benz C-Class 4dr Sedan

228-horsepower 3.0L V6 5-speed shiftable automatic AWD

31000 mi fan motor needed replacement 
44000 mi ac vent would not hold a position 
53000 mi traction control/stability control would stop working, car would not accelerate 
56000 mi

US $300
inside door latch broke and would not release door from within car 

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2009 Mercedes-Benz C-Class 4dr Sedan

215-horsepower 3.2L V6 5-speed shiftable automatic RWD

33480 mi Clonk sound when I turn my steering wheel when on a down slope at cold start. 
47740 mi Wiper fluid leaking. Reservoir tank cracked. Parts ordered. Now waiting dealer's call to send in car for tank replacement. 
67980 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. 
68380 mi

$1300
Steering pump failure. 
83880 mi

$200
Cold air intake tubes cracked due to wear and tear. 
86800 mi Right parking light. Wires melted. Have to change the whole light housing. Bad design by Mercedes Benz. Living with it for now. 
91760 mi

$1300
Steering lock. 

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2009 Mercedes-Benz C-Class 4dr Sedan

-horsepower 5-speed shiftable automatic RWD

23000 mi Wind noise drivers window. Not loud but annoying. Replaced seals but no improvement. 
85000 mi

US $1200
Steering lock failed 
58000 mi

US $2000
Replaced front pads, rotors, and calipers. One Caliper had an issue, which caused one of the two pads in the caliper to completely wear out, though, I went in because of a bearing type noise, and never noticed anything wrong with my breaks 
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.  
20000 mi Mold in AC Evap core causing bad smell. Cleaned evaporator.  
24000 mi Condensation inside diver's side xenon headlight assembly caused failure of headlight. Dealer replaced entire assembly. 
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. 
36500 mi Transmission behaving oddly (longer than normal lag into reverse, delayed 2>3 upshift). Dealer reprogramed w/ TSB guidance and problem hasn't been occured again. Moldy & smelly AC evaporator prob re-occured. Dealer cleaned system again. The problem hasn't resurfaced but it's only been a few weeks. Rear parcel shelf rattle. Sunroof juddery when closing from vent position. Dealer removed glass, lubed & reset. 
68000 mi

US $2200
Collapsed transmission mount and all engine mounts (leaking) replaced. Replaced serpentine belt and pulley. 
77000 mi

US $80
SRS malfunction warning. Self diagnosed as a failed belt-buckled sensor in belt latch. Replaced latch by unbolting seat. 
88000 mi

US $1100
Electronic steering lock failure, steering lock suddenly did not communicate with key, making car inoperable. 
55000 mi

US $1100
Steering Column Lock was replaced. Vehicle wouldn't start and locked steering wheel and gear shift. Went into theft mode as if someone was trying to steal it. 

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2008 Mercedes-Benz C-Class 4dr Sedan

228-horsepower 3.0L V6 5-speed shiftable automatic AWD

1000 mi Excessive right rear brake dust. Dealer replaced both rear calipers. Ding in left rear door B-Pillar trim. Replaced the trim piece. 
3000 mi Drivers side outside mirror glass vibrated. Dealer replaced mirror glass and housing assembly. Center seatbelt in rear deck was rattleing. Dealer put insulation around center seatbelt bracket. 

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2008 Mercedes-Benz C-Class 4dr Sedan

215-horsepower 3.2L V6 6-speed manual RWD

18000 mi Needed to replace manual transmission 
49000 mi

US $795
ESL (Electronic Steering Lock) Failure 
60000 mi

US $15
Leaking oil from camshaft access port plug 

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2008 Mercedes-Benz C-Class 4dr Sedan

-horsepower 5-speed shiftable automatic RWD

96000 mi

US $1300
steering locking mechanism malfunction 

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2007.5 Mercedes-Benz C-Class 4dr Sedan

311-horsepower 4.4L V8 4-speed automatic RWD

73560 mi Steering wheel interlock to the Start circuitry. A well-known problem on the 2007 W204. 

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2007 Mercedes-Benz C-Class 4dr Sedan

-horsepower 5-speed shiftable automatic RWD

37000 mi

US $350
Sometimes when car slows to a stop transmission shifts early causing a jerking sensation via engine braking. Fix would require valve body change for $1500. Software updates can help, looking into DIY. Will probably end up living with it. The stereo sound has gone out twice already, but always comes back after the ECU resets itself. Satellite reception is poor - apparently a poor ground connection in the antenna is common, but require removal of the headliner to fix. stereo stopped producing sound, but restarted again. This apparently is a fail safe to protect the audio system, and occurs when a component has an issue. Diagnosing difficult so living with it. Apparently this is not uncommon. 
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. 
40300 mi Snaps on chrome plastic bezel surrounding shifter broke, causing shifter to move around. Research indicates that this is a fairly common issue. Solution is to buy a whole new shifter cover assembly or repair it with paper clips. 
46700 mi

US $550
Steering angle sensor went bad causing stability control system to fail. 

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2006 Mercedes-Benz C-Class 4dr Sedan

228-horsepower 3.0L V6 5-speed shiftable automatic AWD

37200 mi

C $300
Parking brake rubbing rotors when disengaged. Dealer/Mercedes Canada will pay 75% (good will). Owned car 3 months was MB certified. 
75640 mi Car Totaled.Great Car.Owned it from yr 5 to yr 10.5. Only Repairs were parking brake cable. Partially warranted at year 5.1. Only flaws were door light sw. got damaged by seat buckle. Multi CD player stopped working. 

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2006 Mercedes-Benz C-Class 4dr Sedan

-horsepower 5-speed shiftable automatic RWD

41000 mi *There were no problem with the car in December. 
64000 mi Steering Angle Sensor replace after message indicator "ESP malfunction visit workshop". 
44000 mi Air conditioning not working properly; happened VERY intermittently, but was still troubling enough for me to take it in.  
65000 mi

US $850
Cruise control and electronic skid prevention not working. 
76000 mi

US $550
Regulator in driver's side window needed to be replaced due to wear. 
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. 

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2005 Mercedes-Benz C-Class 4dr Sedan

-horsepower 6-speed manual RWD

32000 mi

US $280
HID ballast failed. Replaced ballast and bulb. Steering angle sensor failed and was replaced. Independent shop reset resulting airbag warning light due to disconnected power/battery. 

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2004 Mercedes-Benz C-Class 4dr Sedan

-horsepower 6-speed manual RWD

55800 mi I have had a clunking sound in the front suspension for the past 3 years. The dealership has thrown almost every part to solve it except for the cross-strut link resulting in 8 visits. They finally solved the problem. Luckily it was covered 
60140 mi front left wheel bearing was warn and caused excessive play. Tightening the nut that secured the hub seemed to solve the problem but garage recommended replacing bearing altogether as it is unsure if it was wear or the nut loosened Battery/Alternator malfunction light comes on intermittantly. Replaced battery as it was over 7 years old, malfunction warning went away but later returned, looks like there is a voltage regulator problem however output is within specs 
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 
62620 mi

C $65
replaced Voltage Regulator 
63240 mi

C $80
since the battery had to be disconnected for the alternator repair this created an airbag / SRS malfunction error and had to be erased using Mercedes equipment and reprogrammed 
63240 mi

C $65
replaced outer steering tie rod as there was excessive play 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 right side steering tie rod. excessive play in ball joint causing a loose feel, made clunking noises over bumps 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 
70680 mi

C $700
replaced both front and rear sway bars as they were rusty under the bushings and made noise, sway bar links were worn had to replace rear rotors and pads completely rusted on inside, parking brake mechanism failed and caused damage to rotor and splash shield as lining material separated from the shoes for the p-brake. parking brake is an drum brake system 
71300 mi

C $1100
wheel bearing Right side needed to be replaced, $400 bolt for left front wheel seized and snapped off, dealer could not remove bolt and had to replace hub, as well as new bearings as bearings could not be reused despite being less than 2 years old, $700 
74380 mi

C $680
three out of the four springs broke, each one was the bottom half coil 
76240 mi

C $201
replace upstream O2 sensor as it was sending an error code rubber boot in the firewall which the steering shaft goes through is ripped and tore off 
76880 mi

C $328
steering boot through firewall ripped and was letting in sound and air, $115 air con was blowing warm air on driver's side and cold on passenger side. Repair was: replace expansion valve, replace receiver drier and recharge the system, $213 
77080 mi door handle broke while pulling the door to close. Took plastic handle off and used marine epoxy to glue the broken mounting plate trunk latch handle would open once and stay open. Took out exterior latch handle and cleaned and lubed to free the mechanism which appears to have seized because of dirt, salt and a bit of rusting on pivot bar 
78500 mi

C $150
This is a repair caused by a previous repair that was not fitted properly causing damage to a component. When I had the springs changed in May, the shop installed the strut bearing 180 degrees off causing damage to the bearing and clunking 
80600 mi

C $430
Ball joints on control arm and also on thrust arm were worn and needed to be replaced 

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2004 Mercedes-Benz C-Class 4dr Sedan

-horsepower 5-speed shiftable automatic RWD

67880 mi

C $500
change suspension part. pads+rotors and 1 caliper was change. 
71300 mi

C $250
Brake caliper seize. 
73620 mi

C $200
Coil spring was broken. 

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2003 Mercedes-Benz C-Class 2dr Hatch

215-horsepower 3.2L V6 5-speed shiftable automatic RWD

102000 mi Parking brake release doesn't clear parking brake indicator; have to pull up on parking brake pedal to clear. 

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2003 Mercedes-Benz C-Class 2dr Hatch

-horsepower 6-speed manual RWD

94860 mi

C $3147
Front end, control arms, tie rod ends Parking Brake stuck on Alternator replaced 
100440 mi

C $420
Seized Brake Caliper - left front. 
104160 mi Fixed rust and corrosion on both doors, quarter panels and front fenders 
107880 mi

C $326
Oxygen Sensor replaced, upstream sensor. 
117800 mi

C $191
Leaking Strut, replaced both Bolts and flange repaired Outside left Tie rod end replaced 
121240 mi

C $788
Brake Caliper in driver front replaced, Brake caliper driver rear kit installed, new brake fluid 
125240 mi

C $55
Check Engine light, code turned off Check engine light reappeared, replaced downstream O2 sensor, turned light off, additional cost $277 
132460 mi

C $660
Control arm needed replacement A/C system retested and recharged, seems ok now, time will tell 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 
65720 mi Clunking in front end when going over bumps. Front suspension bushings replaced. 
74400 mi Brake assist / stability control warning light on intermittently. New sensor on order  Suspension bushing failure. 
84320 mi clunking noise in front end suspension (again). Replaced front springs, one front shock, some suspension bushings 
84940 mi

C $120
Rust appearing around rear wheel arches and around passenger door handle. Shop discovered more rust behind rear wheel fender liners. Repair under manufacturer good will. 
93620 mi Check engine light coming on due to thermostat. Drivers door lock actuator not working properly Clear coat peeling where body shop had repainted for previous warranty rust repair. 
97960 mi smoke coming from alternator due to short. Caused by car wash. 
99200 mi

C $1000
alternator shorting in wet weather. alternator replaced 

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2002 Mercedes-Benz C-Class 4dr Sedan

215-horsepower 3.2L V6 5-speed shiftable automatic RWD

63000 mi After having bought the car and left it for a day on our garage ramp, it would not start next day (b/c battery drain). I traced it to a faulty passenger seat module. This seems like a common issue on all MB with automatic seats adjustments. When driving at low speeds and the road is not completely flat (worn pavement, bumps...) you can hear clunks coming front the front. It turns out to be the sway bar end links are worn out. This is another know issue on all these cars. 

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2002 Mercedes-Benz C-Class 4-door

supercharged 4-cylinder automatic 2WD

83080 mi

$50
Replaced front suspension and steering column. 
86800 mi

$50
The starter motor suddenly stopped working with no prior warning and after it was opened, the brushes were worn down to the spring.rnReplaced the brushes and bushes and cleaned it out.rnWorks perfectly fine now.rnThanks 
88440 mi The ABS light was constantly on. Removed the front wheels and just cleaned out the ABS contacts with Carb-cleaner and reinstalled them and now the problem is solved. Thank you 

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2002 Mercedes-Benz C-Class 2dr Hatch

-horsepower 6-speed manual RWD

71000 mi

US $400
rebuilt dashboard display--faded in hot weather. This is a gradual degradation over the years.  P-brake pedal return spring replaced. Minor, old problem. Prior adjustments did not correct. 

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2001 Mercedes-Benz C-Class

Engine not specified

161200 mi

$6000
And sensor 

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Mercedes-Benz C-Class Brake Problems

See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently Mercedes-Benz C-Class problems occur, check out our car reliability stats.