| 1 | 0 | 3 | 4 | 3 | 4 |
2004 Mercedes-Benz C-Class repairs by problem area
Engine (37%)
Transmission and Drivetrain (6%)
Brakes and Traction Control (5%)
Suspension and Steering (24%)
Electrical and Air Conditioning (20%)
Paint, Rust, Leaks, Rattles, and Trim (2%)
Other (6%)
Chart based on 86 repairs.
2004 Mercedes-Benz C-Class engine repair cost distribution
$2500+ (0%)
$1000 - $2499 (10%)
$500 - $999 (21%)
$100 - $499 (41%)
< $100 (28%)
Chart based on 29 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
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
| 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 |
| 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. |
| 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. |
| 97000 mi US $1250 |
Replace fuel pump and fuel level sensor. |
| 120000 mi US $300 |
Noise from kompressor. Service B. |
| 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. |
See TrueDelta's information for all Mercedes-Benz models.
