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

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Expensive Mercedes-Benz C-Class repairs by problem area

Engine (40%)

Transmission and Drivetrain (11%)

Brakes and Traction Control (6%)

Suspension and Steering (15%)

Electrical and Air Conditioning (22%)

Paint, Rust, Leaks, Rattles, and Trim (3%)

Other (3%)

Chart based on 204 repairs.
See TSBs and recalls for the Mercedes-Benz C-Class.

Mercedes-Benz C-Class repair cost distribution

$2500+ (21%)

$1000 - $2499 (79%)

$500 - $999 (0%)

$100 - $499 (0%)

< $100 (0%)

Worried about potential repair costs? An extended warranty can provide peace of mind.

Chart based on 148 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2016 Mercedes-Benz C-Class 4dr Sedan

turbocharged 241hp 2.0L I4 7-speed shiftable automatic RWD

13000 mi

US $1500
Worn suspension parts, ones that should not have worn in so few miles 

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2013 Mercedes-Benz C-Class

Engine not specified

16000 mi

US $1900
Windshield Lights continuously have fault warning 

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2013 Mercedes-Benz C-Class 4dr Sedan

turbocharged 181hp 1.8L I4 6-speed manual RWD

6200 mi

$1000
Battery Flat after car parked for three months, then rear lights on by mistake - Battery Replaced (800mAH) - Car has START/STOP Function 
7564 mi

$300
ABS and Traction Control warning illuminated. Took car to dealer for diagnosis. Dealer found ABS sensor on right front wheel unserviceable. Part replaced and ailment cured. 

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2013 Mercedes-Benz C-Class 4dr Sedan

481-horsepower 6.2L V8 7-speed shiftable automatic RWD

49000 mi

US $1000
Steering Adjustment [angle] Sensor 

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2012 Mercedes-Benz C-Class

Engine not specified

27940 mi

$1200
Engine Mounts and Transmission Mount replaced. Wipers also replaced. I CANNOT BELIEVE I HAD TO CHANGE ENGINE MOUNTS AT 50K KMS! 

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2012 Mercedes-Benz C-Class 4dr Sedan

turbocharged 201hp 1.8L I4 7-speed shiftable automatic RWD

59000 mi

US $250
Battery replaced. 
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 

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2012 Mercedes-Benz C-Class 4dr Sedan

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

43000 mi

US $1000
The prefuse block was faulty, and vehicle would not start. 

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2011 Mercedes-Benz C-Class 4dr Sedan

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

67580 mi

R 14700
The car did not want to start, the dealer said it is a steering lock that must be replaced 
13646 mi

C $7678
Entire computer module for electronics replaced. Back up camera, parking sensors, interior lighting (dash included) all failed one morning. Car inoperable in dark conditions 

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2011 Mercedes-Benz C-Class 4dr Sedan

228-horsepower 3.0L V6 7-speed shiftable automatic AWD

81000 mi

US $250
Battery replacement.  Parking lamp replacement. Takes about 15 minutes largely because there are some mechanisms that are fussy/tricky and you have to relearn how to do it. 
80900 mi

US $1200
electronic steering column ignition lock 

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2011 Mercedes-Benz C-Class 4dr Sedan

228-horsepower 3.0L V6 6-speed manual RWD

57000 mi

US $1500
Sunroof. Replaced drain tube and dried electrical connections. 
64000 mi

US $780
Traction control lights on. Engine lost power. Dealer replaced accelerator pedal but repair was unsuccessful. I replaced all brake pads, rear rotors, left rear caliper and flushed the brake system. Repair sucessful. 

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2010 Mercedes-Benz C-Class 4dr Sedan

turbocharged 201hp 1.8L I4 5-speed shiftable automatic RWD

9300 mi

$1500
All front and rear shock absorbers are not dampening, replaced all the front and rear shock absorbers 

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2010 Mercedes-Benz C-Class 4dr Sedan

turbocharged 181hp 1.8L I4 5-speed shiftable automatic RWD

52700 mi

$1200
speed sensor 

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2010 Mercedes-Benz C-Class 4dr Sedan

228-horsepower 3.0L V6 7-speed shiftable automatic RWD

137000 mi

US $3000
Engine Mounts needed to be replaced because you could feel vibration while driving. Once repaired car was noticeably smoother. Transmission Mount. When car would shift gears I could feel some jerk. Once replaced it was very smooth. When turning to the right was hearing some noise from front. Once replace it was no longer there. 

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2010 Mercedes-Benz C-Class 4dr Sedan

228-horsepower 3.0L V6 7-speed shiftable automatic AWD

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. 
42700 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. 
27900 mi

C $1100
Battery failed load test, was replaced. This is the third battery in 5 years. Water had entered the rear driver's side light housing and corroded the connectors. 

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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. 
78460 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 4dr Sedan

supercharged 181hp 1.8L I4 5-speed shiftable automatic RWD

42560 mi

$700
Auto trans did not provide usual creep-forward behaviour at idle and sluggish response at lower RPM. The computer may have been reflashed. 
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. 
45760 mi

$400
Inconsistent locking/unlocking response from driver-side door. Central locking control module in car replaced. Broken storage compartment roller-shutter on transmission tunnel next to gear selector. Replacement of roller-shutter or storage compartment assembly. 
48980 mi

$200
Intermittent illumination of a brake light when car is off, locked and unoccupied. Fault identified and addressed (replaced part is not known). 

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2009 Mercedes-Benz C-Class 4dr Sedan

supercharged 154hp 1.6L I4 6-speed manual RWD

18600 mi

$2000
Air-condition compressor and other AC parts failure. Needed complete replacement. Total costs were nearly $5,000. The dealer absorbed about $3,000 of the cost. They said the failure was due to the humid climate where I live 
26040 mi

$1500
new blower 
27280 mi

$400
Water getting into side mirror indicator housing 
32860 mi

$200
Rubber grommet in windshield washer water reserve bottle was worn causing leak 
37200 mi

$150
Roof trim strips began to peel.  Glove box dropped out. Shutter lid for middle console deteriorated and disintegrated 

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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. 
69480 mi

$1300
Steering pump failure. 
83680 mi

$200
Cold air intake tubes cracked due to wear and tear. 
91760 mi

$1300
Steering lock. 
120000 mi

US $1600
2x Motor Mounts & 1x Transmission Mount 
96000 mi

US $1200
Ignition switch module broke. Would not recognize either key. Required replacement of ignition switch module and reprogramming of both keys 
68000 mi

US $250
Couldn't start the car. Had to change battery. 
78000 mi

US $1500
The two front sway bar links have some play, the front right control arm bushing is worn and seeping fluid, and the front left control arm bushing is worn as well. 

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2009 Mercedes-Benz C-Class 4dr Sedan

228-horsepower 3.0L V6 7-speed shiftable automatic RWD

85000 mi

US $1200
Steering lock failed 
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. 
68000 mi

US $2200
Collapsed transmission mount and all engine mounts (leaking) replaced. Replaced serpentine belt and pulley. 
88000 mi

US $1100
Electronic steering lock failure, steering lock suddenly did not communicate with key, making car inoperable. 
97000 mi

US $150
Replaced headlight switch. Old switch causing right parking lights to remain lit when switch was in off position. 
104000 mi

US $1200
System leaking, replaced expansion valve and recharged. 
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 

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2009 Mercedes-Benz C-Class 4dr Sedan

228-horsepower 3.0L V6 7-speed shiftable automatic AWD

139000 mi

US $450
thermosat stuck open 
197000 mi

US $2800
Replace transfer box 
213200 mi

US $2200
Left front axle & boots 
242000 mi

US $1500
Motor mounts (2), and Transmission mount (1) 
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. 
59500 mi

US $250
The command system kept resetting itself every 30-45 seconds regardless of wheteher it was switched on or off. Dealer performed software upgrade. 
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). 
60300 mi

US $1000
There was oil leak that I was told was normal "wear and tear" for the 4matic. And cannot be covered by my extended warranty. 
62000 mi

US $1100
After my trip in December, which included major service and speaker changes, the front right indicator stopped working due to a control unit wiring issue. That was very coincidental but they didn't think it was related. 

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2009 Mercedes-Benz C-Class 4dr Sedan

228-horsepower 3.0L V6 6-speed manual RWD

35200 mi

US $1200
Replace driver door hinge due to clunking during door open travel Replace window regulator due to shuddering motion when glass lifts/drops Replace steering module in column due to high pitch whining squeal when turning off center. 
179000 mi

US $4000
Flap regulating flow of air to intake manifold broke 

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2009 Mercedes-Benz C-Class 4-door

turbocharged 4-cylinder automatic 2WD

54960 mi

¤1200
AC Compressor failure and replaced with a denso compressor 

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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 

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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 

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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 
75580 mi

$1335
Replaced front and rear shock absorbers together with the front absorber mountings and front absorber stoppers. 
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. Replaced both front brake discs as these were deformed together with both control arm bushes. Also replaced one disc pad and one brake sensor. 

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2008 Mercedes-Benz C-Class 4dr Sedan

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

45000 mi

US $1400
Seatbealt sensor failure which won't trigger air bag.(600) Ground wire issue ($300) brakes ($500) 

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2008 Mercedes-Benz C-Class 4dr Sedan

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

45260 mi

C $1500
Had an issue with the SRS system. Kept getting warning messages on the dash. They said the SRS control module had to be replaced 

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2008 Mercedes-Benz C-Class 4dr Sedan

228-horsepower 3.0L V6 7-speed shiftable automatic RWD

96000 mi

US $1300
steering locking mechanism malfunction 
84000 mi

US $1300
Car would not start had to tow to Mb specialty shop. Electronic Steering column lock and Eis system replaced. 
87000 mi

US $1000
Ac blowing warm air. Ac compressor replaced for the 2nd time 
93000 mi

US $1200
Electronic ignition lock module failed. Needed replacing - and required Tow to dealer. 
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. 
114800 mi

US $2100
Steering became 'tight ', then would periodically 'slip' - the wheels would track, but the steering wheel would feel disconnected for a few degrees of turn 

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2008 Mercedes-Benz C-Class 4dr Sedan

228-horsepower 3.0L V6 7-speed shiftable automatic AWD

53940 mi

C $600
Crack is arm rest. Replaced entire drivers door panel 
69720 mi

C $1675
Difficulty selecting forward or reverse. Conductor plate failure. 
74400 mi

C $333
HID headlight replacement 
76880 mi

C $550
Blower motor for heater & A/C failed 
60000 mi

US $600
Musty AC smell. Cabin Filter replaced. Check Engine light, cam magnets need replacement. squeaky side mirrors. fog and rear lights would come on when car is parked and key is in my pocket. 
68000 mi

US $2500
Idler pulley, serpentine belt replaced 
47120 mi

C $1400
Replaced engine and transmission mounts 
47740 mi

C $2500
Replace torn cv joint cover. Requires whole new axle 
76000 mi

US $1700
Transmission Conductor Plate and Valve Body replaced. 
94000 mi

US $1130
Electric steering wheel faulty. Had to replace the part and it was expensive to repair and must be done at dealer only. 
74000 mi

US $6671
Whining noise was diagnosed as transfer case bearing that cannot be replaced. Since TC is part of the transmission (4MOTION model) a re-manufactured transmission was installed. While this happens in the all-wheel-drive c300s, I consider it just an unlucky occurrence that I have one that failed. It is still a beautiful car and now it's pretty much bullet-proof! 
79000 mi

US $300
Replaced blower motor and resistor for HVAC system. 
82300 mi

US $450
Replaced all four rotors and pads 

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2008 Mercedes-Benz C-Class 4dr Sedan

228-horsepower 3.0L V6 6-speed manual RWD

38500 mi

US $217
The a/c vent directional vanes in the center of the dash broke. Both vents were replaced. 
51000 mi

US $1150
Car would not start. ESL (Electronic Steering Lock) failure. ESL replaced. 
71000 mi

US $685
Thermostat failed. Thermostat replaced. 

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2008 Mercedes-Benz C-Class 4dr Sedan

201-horsepower 2.5L V6 7-speed shiftable automatic AWD

35640 mi

C $1000
Key lock electronic dead 
57400 mi

C $400
Cylinder misfire. Fuel injector defective 
62000 mi

C $150
Door lock actuator broken 
68200 mi

C $600
exhaust crank sensor defective 

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2008 Mercedes-Benz C-Class 4dr Sedan

201-horsepower 2.5L V6 6-speed manual RWD

2480 mi

$1000
Generator was broken, heard a loud noise everytime I started the car. 

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2007 Mercedes-Benz C-Class 4dr Sedan

228-horsepower 3.0L V6 7-speed shiftable automatic RWD

93000 mi

US $300
Replaced Windshield washer Fluid Resevior 
119000 mi

US $400
Shifter knob and shift plate replaced. Moved/slid when shifting from one position to another. Maintenance another $700. 
120000 mi

US $1500
Replace front struts and front strut mounts. 

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2007 Mercedes-Benz C-Class 4dr Sedan

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

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 
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... 

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2007 Mercedes-Benz C-Class 4dr Sedan

201-horsepower 2.5L V6 7-speed shiftable automatic RWD

71500 mi

US $1700
Check engine light came on. Car idled rough. They Removed and Replaced the Intake manifold. 
110000 mi

US $1000
waterpump 
91000 mi

US $1400
Cam magnets replaced as well as brake vacuum pump 
36000 mi

US $140
Wheel bearing had become loose. Repacked. 
68900 mi

US $363
Coolant Thermostat Sensor replaced. 
70000 mi

US $1244
Replace turbine speed sensor. 
40300 mi

US $2500
A conductor plate went bad in the transmission. The transmission had to be mostly disassembled for the repair, so it was time consuming and expensive. It works perfectly now. 

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2006 Mercedes-Benz C-Class

Engine not specified

73000 mi

US $1000
Tie rod bearing excessively worn, Replaced tie rods. 

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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 

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2006 Mercedes-Benz C-Class 4dr Sedan

362-horsepower 5.4L V8 5-speed shiftable automatic RWD

72700 mi

US $1000
Suspension bushings were leaking and then the battery died while in their shop so I had to replace that as well. 
82300 mi

US $1300
Had a seal on a sensor fail on my transmission which leaked fluid all over this electronics panel that sits under the tranny which causes the tranny to go into "limp mode" stuck in 1st gear. 
85800 mi

US $419
Rear passenger wheel bearing began to make noise. 
121000 mi

US $100
Replaced rear shocks and several suspension components due to noises and a soft feeling rear end. Leak in expansion tank and auxiliary coolant pump. 

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2006 Mercedes-Benz C-Class 4dr Sedan

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

59000 mi

US $375
Grinding noise from rear when making slow, tight turns (parking, etc) Shop found a TSB on this problem from Jan 2009. Rear transfer case (4Matic) gears grinding due to bad fluid. Replaced fluid, grinding gone, gears seem undamaged. 
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
Driver's Window Switch not working. Replaced switch panel. CEL on, replaced right intake solenoid. Rattle in door, could not replicate but went away when door taken apart to fix window switches. 
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. 
85000 mi

US $530
Passenger door lock was clicking when door was locked from inside the car using dash button. New lock put in, also noticed rusted harness and elements for passenger rear view mirror, mirror motor replaced. Oil change, tire rotation as well. Passenger door lock was clicking when door was locked from inside the car using dash button. New lock put in, also noticed rusted harness and elements for passenger rear view mirror, mirror motor replaced. Oil change, tire rotation as well. 
70300 mi

US $350
Rear end creaking noise, replaced bushing. Noise is still there, seems to be in the cabin. 
98000 mi

US $150
Center console cover broken, replaced. 
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. 
153000 mi

US $1750
Passenger side [suspension], not sure of the part replaced, but was worn out. AC Compressor making high pitched whining sound, seized up, finally broke apart. Replaced compressor plus new belt. 
156000 mi

US $330
camshaft sensor replaced 
101000 mi

US $300
Canister vent valve replaced.  
102000 mi

US $260
Rear control arm bushings replaced. 
122000 mi

US $1000
Front struts replaced. 
168200 mi

US $200
Right tie rod end replaced. 
174800 mi

US $900
CV joint boots ripped. Replaced cv axle joints. 

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2006 Mercedes-Benz C-Class 4dr Sedan

201-horsepower 2.5L V6 7-speed shiftable automatic RWD

34000 mi

US $425
Trim ring on cupholder had chrome flaking off. Replaced cupholder under warranty when doing "B" service. 
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. 
72000 mi

US $1800
Transmission refused to shift until re-booted. Valve body and transmission cpu board were replaced. Mercedes covered the cost of the valve body under "goodwill". This left an $1800 bill for labor and the cpu board. 
58000 mi

US $1250
Valve body replaced. Speed sensor failure. 
98000 mi

US $1200
Needed balance shaft replaced Dealer replaced 4 camshaft positioners. 
60000 mi

US $1600
rear brakes, front suspension joints 
74500 mi

US $600
noise in left front tire. Has not been identified and corrected by dealer yet and has gone through 3 scheduled maintenance yet and they cannot find it. door handle for front driver and passenger plastic handle broken 
89000 mi

US $1400
fourth time car misfired in two year blowing coils and destroying intake. 

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2006 Mercedes-Benz C-Class 4dr Sedan

201-horsepower 2.5L V6 6-speed manual RWD

45000 mi

US $1500
bad solenoid. 1500 bucks - caused engine to not shift gears. 

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2005 Mercedes-Benz C-Class

Engine not specified

66000 mi

US $600
Couldn't open the door because Mercedes used a $2 door handle that I paid $150 to replace. NOT HAPPY! CD player tried to change CDs constantly. Required 3 trips to dealer to get them to fix. I gave them specific detail. They disagreed, and it took multiple trips over 1 month for them to determine original diagnosis was correct. My last Mercedes. 
72000 mi

US $1450
Rear passenger door latch not working - door could not be opened from inside. Passenger front door latch not working - door could not be opened from the outside. Replaced radio for SECOND time since I've owned the car. Screen blacked out and intermittent. Note that problem not fixed. Stereo was replaced and the new stereo cassette player doesn't work. Mercedes sucks. 

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2005 Mercedes-Benz C-Class 4dr Sedan

supercharged 189hp 1.8L I4 5-speed shiftable automatic RWD

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. 
20000 mi

US $1800
Warranty. MB replaced the cabin carpet entirely after it began to discolor. No other repairs. 
103000 mi

US $435
Seat trim on the driver power seat had broken where it covers the power rack. Replaced the cover. 
111000 mi

US $250
Seat pan trim failed again. In addition, dealer said trim would fail because seat springs were broken (sic). Instructed my 130# wife to stop jumping on seat (LOL). Fired the dealer (RBM Atlanta). 
158000 mi

US $2500
camshaft sprocket failed. 
85000 mi

US $100
Replace camshaft magnets as they were leaking oil. 
92000 mi

US $100
AC compressor and dryer replaced as it broke and failed. The alternator one way pulley was frozen. I replaced it. 
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 
134200 mi

US $565
Control arm bushings all shot. Replaced. 
140000 mi

US $1000
A/C compressor failed, tensioner pulley also bad. 
79000 mi

US $2009
Cel on for thermostat.  Front strut bushing worn out.  Vacuum leak. Fuel filter replaced. Spark plugs. Battery. Alignment. Wipper blades. Service B. 
57000 mi

US $150
Cam magnet sensor leaking. 
84000 mi

US $100
Thermostat 
128000 mi

US $1200
Alternator Replaced 
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. 
60500 mi

US $1200
Alternator failed. Starter failed 

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2005 Mercedes-Benz C-Class 4dr Sedan

362-horsepower 5.4L V8 5-speed shiftable automatic RWD

123360 mi

R 1000
Engine & Transmission mounting changed,  Tie Rods changed, Left Lower Control Arm changed. 
130180 mi

R 700
Water Pump change 
90000 mi

US $2800
Replaced crank sensor Repaired several oil leaks 
92200 mi

US $450
COMAND not working properly. Replaced ipod module and reprogrammed COMAND. COMAND system not working properly. iPod interface replaced and system reprogrammed. 
94500 mi

US $780
Replaced Mass Airflow Sensor 
104000 mi

US $600
Replaced control arm bushings 
86800 mi

$2800
ESL board broken, got it fixed by wireman. Keys have to be reprogrammed. 

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2005 Mercedes-Benz C-Class 4dr Sedan

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

93000 mi

R 4700
Oxygen sensors. 
122760 mi

R 200
Control Arm Bushes 
140520 mi

R 10000
Fan Broke 

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2005 Mercedes-Benz C-Class 4dr Sedan

168-horsepower 2.6L V6 5-speed shiftable automatic RWD

161200 mi

$6000
And sensor 
425000 mi

US $5000
Starter 

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2005 Mercedes-Benz C-Class 4dr Sedan

168-horsepower 2.6L V6 5-speed shiftable automatic AWD

60000 mi

US $2000
Front ball joints  and left inside CV boot and axle replaced. 

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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. 
285200 mi

A $1650
Air cond not work, new compressor fitted. 

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2004 Mercedes-Benz C-Class 4dr Wagon

168-horsepower 2.6L V6 5-speed shiftable automatic AWD

84000 mi

US $3400
Replaced torque converter and Transmission Control Computer. Reflashed ECC and TCC to finally correct all the symptoms of the problem 
101000 mi

US $330
Replace both horns 

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2004 Mercedes-Benz C-Class 4dr Sedan

supercharged 189hp 1.8L I4 6-speed manual RWD

60140 mi

C $300
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 
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 
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 
74280 mi

C $680
three out of the four springs broke, each one was the bottom half coil 
75940 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 
72380 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

supercharged 189hp 1.8L I4 5-speed shiftable automatic RWD

77000 mi

US $900
Control arm boots cracked and leaking fluids. Replaced and front end aligned. 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. 
97200 mi

US $405
Passenger seat air bag sensor wiring deteriration causing SRS system error. Sensor replaced. 
107700 mi

US $1926
Battery/alternator/ESP warning lights came on multiple times when starting after sitting for 24 hours or more. Replaced battery. 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. 
110000 mi

US $754
Car ran fine for 1 week. Started getting battery/ESP warning lights again while driving the car. Returned to shop for repair. Altenator replaced. 
97000 mi

US $1250
Replace fuel pump and fuel level sensor. 
120000 mi

US $300
Noise from kompressor. Service B. 

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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 

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2003 Mercedes-Benz C-Class 4dr Wagon

215-horsepower 3.2L V6 6-speed manual RWD

64480 mi

C $1400
Alternator and battery replaced 
64480 mi

C $350
Replace o2 sensor 
69440 mi

C $2300
Ball joints replaced.  
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
Replaced two front springs and stabilizer bushings. 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. 
83080 mi

C $350
Coolant level sensor said coolant was low but wasn't. Sensor replaced 

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2003 Mercedes-Benz C-Class 4dr Sedan

supercharged 189hp 1.8L I4 5-speed shiftable automatic RWD

91000 mi

US $1500
SRS Sensor went bad 
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. 
83543 mi

US $726
Whole headlight fixture needed to be replaced after the headlight burned out due to aftermarket HID lights. 
136672 mi

US $1235
Fuel pump failure. replaced fuel pump 
49300 mi

US $1500
Conductor plate (along with sensors) was replaced, transmission was not shifting from time to time. It was a common problem when I googled it, thanks to the involvement of Chrysler during that time period. one of the hoses or pipes was cracked & caused the check engine light to turn on. 

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2003 Mercedes-Benz C-Class 4dr Sedan

215-horsepower 3.2L V6 6-speed manual RWD

75000 mi

US $1650
Replaced rattling clutch. The clutch was a standard clutch kit which included the disc, pressure plate, and slave cyl. The price for the kit is 750 and the labor was 900. 

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2003 Mercedes-Benz C-Class 4dr Sedan

168-horsepower 2.6L V6 5-speed shiftable automatic RWD

53000 mi

US $150
Left front Xenon shorted out 
54000 mi

US $200
Bi-Xenon headlight ballast failure. Located ballast and replaced. 
79000 mi

US $500
Body rust through. Frankly, I was pissed. 
90000 mi

US $2200
Torque converter failed due to poor M-B design. Cooling line routed through transmission leaked coolant into the transmission, causing Torque converter to fail. 
111000 mi

US $1400
right low beam headlight out; purchased bulb at auto parts store; my independent mech. installed no charge...took only a few minutes.... 
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. Right rear door, unable to open from outside..rear door lock jumps. 

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2003 Mercedes-Benz C-Class 4dr Sedan

168-horsepower 2.6L V6 5-speed shiftable automatic AWD

156000 mi

US $1175
Crankshaft alignment sensor was replaced by Midas ($380.00) because the dealership wanted $950.00 to do the same thing. Front c.v. boots replaced by dealer, as other shops had to order the whole axle assemblies to repair, ($4,000+). So I had the dealer do it. 

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2003 Mercedes-Benz C-Class 2dr Hatch

supercharged 189hp 1.8L I4 6-speed manual RWD

63000 mi

US $150
Check engine light. Downstream O2 sensor. 
65000 mi

US $500
Check engine light. Upstream O2 sensor. 
81000 mi

US $1600
AC Compresser cracked oil filter cap 
97000 mi

US $750
Alternator replaced. 
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. 
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 
122000 mi

C $788
Brake Caliper in driver front replaced, Brake caliper driver rear kit installed, new brake fluid 
132260 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 $465
Check engine light, to do with threshold being reached one time on oxygen sensor 
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). 
143000 mi

US $1000
Replaced electronic ignition switch and key. 
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

C $800
Check engine light coming on due to thermostat. Drivers door lock actuator not working properly 
99200 mi

C $1000
alternator shorting in wet weather. alternator replaced 

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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). 
94240 mi

C $800
Charging system failure.  
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. 
118000 mi

US $3000
worn bushings, required replacement replacement battery needed 
122500 mi

US $900
Belt tensioner failing. Replaced unit and belt 
134000 mi

US $700
Passenger window malfunction. Would not raise or lower correctly. Replaced window motor regulator. 
146000 mi

US $1200
Sunroof inop 
162500 mi

US $600
Check engine light. Discovered a cracked hose under intake manifold. 

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2003 Mercedes-Benz C-Class 2dr Hatch

70000 mi

US $3000
Shifter made clicking noise, replaced 
78000 mi

US $2000
Small fuel leak, could smell in the cabin 

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2002 Mercedes-Benz C-Class

Engine not specified

31000 mi

$1300
Motor and computer failure for motorized front seats 

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2002 Mercedes-Benz C-Class 4dr Wagon

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

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. 
56100 mi

US $750
Passenger seat controls shorted out and drained the battery. Replaced battery and seat control module. 
67900 mi

US $1000
Upper and lower control arms on L and lower control arm on R replaced. 
89000 mi

US $200
Cabin filter replacement 
105000 mi

US $175
Replace rear trans mount 
110000 mi

US $1700
Front suspension parts worn and needed replacement. Ball joints, bushings. 
127000 mi

US $400
Rear seat belt reel, located in the center of the rear seat, cinched up while seat was folded for hauling. 
139500 mi

US $500
Transmission was leaking ATF through seal where sensor is located. 
176000 mi

US $1500
Fuel pump 
190000 mi

US $1800
Replaced bushings 

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2002 Mercedes-Benz C-Class 4dr Sedan

supercharged 349hp 3.2L V6 5-speed shiftable automatic RWD

123000 mi

US $3700
Replaced ac compressor and hoses. 
121000 mi

US $3000
Clogged drains flooded a fuse box and shorted the ECU. 
86800 mi

A $1100
noisy pulleys Misfiring after spark plugs Leaking transmission, Transmission solenoid. 
93900 mi

A $700
Burst radiator hose, damaged thermostat 
101000 mi

US $200
Replace intercooler pump - replaced with F150 SVT pump. 
106000 mi

US $1350
Control arms and bushings. 
118000 mi

US $950
Replace alternator. 

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2002 Mercedes-Benz C-Class 4dr Sedan

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

40000 mi

US $1500
Air conditioning stepper motor and arm replaced. Common problem on this model. 
43000 mi

US $1000
Replaced front suspension links. 
43000 mi

US $300
Air conditioner stopped working. Refrigerant replaced. 
155000 mi

US $1000
anti - dive bars 
160700 mi

US $100
Replace headlight bulb and side marker light bulb 

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2002 Mercedes-Benz C-Class 4dr Sedan

168-horsepower 2.6L V6 5-speed shiftable automatic RWD

81571 mi

US $2100
Alternator's voltage regulator shorted Squeaking suspension, but not unsafe Alternator replacement (was shockingly expensive: $676.80 for part, $385.00 for 3.5 hrs labor) "A" Service Transmission service Combination Filter (carbon cabin filter) Brake flush, rear brake pads Drive belt (poly V belt) 

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2002 Mercedes-Benz C-Class 2dr Hatch

supercharged 192hp 2.3L I4 5-speed shiftable automatic RWD

45000 mi

US $2500
Sunroof cartridge failure, with a 3 inch spring ejected. Did not fix. 
115000 mi

US $1200
Power Seats drain battery is sadi to be a common problem. only solution is to unplug seats so they are unadjustable or pay$1,200 for repair. Dealr recongnizes this is a common problem but not recalls. 
112500 mi

US $9000
Sunroof continued to come off track. They replaced at this incredible fee ($9000). Then it went out again and they said something else was wrong. Did not honor warrenty. and this is at Dealer. They refused to call me back. 
116000 mi

US $600
Car stopped on highway. Transmission fluid leaked out. 
154000 mi

US $1400
AC Compressor System Failure causing Serp Belt to fail and lock up steering and cooling water pump 
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

US $980
Alternator needed to be replaced. Light 'visit workshop - alternator/battery repair' lit up. Went to dealer. 
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 

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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 

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2001 Mercedes-Benz C-Class 4dr Sedan

168-horsepower 2.6L V6 5-speed shiftable automatic RWD

25654 mi

US $1590
Mercedes 'A' service, replace windshield upper tank, spark plugs, fuel filter,dust filter, brake fluid flush 
29482 mi

US $728
Replace thrust arm bushings, Mercedes 'A' service, state inspection 
33479 mi

US $1170
Replace defective stepper motor for the heat. Replace left valve cover gasket 
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 

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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 

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See TrueDelta's information for all Sedans, Wagons, Coupes, and Convertibles.
See TrueDelta's information for all Mercedes-Benz models.

Mercedes-Benz C-Class Expensive 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.