repaired · 2026 Q3
Visibility: sun/moon roof assembly
Risk. A detached sunroof panel can become a road hazard, increasing the risk of a crash.
2004 Mercedes-Benz C320Problems, recalls & complaints
NHTSA has logged 15 owner complaints about the 2004 Mercedes-Benz C320, most often about the fuel/propulsion system. It is covered by 3 safety recalls, and for recall 24V-874 the manufacturer reports only 10% of affected cars repaired.
Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through November 19, 2024. Updated daily. Photo: IFCAR, Public domain.
Complaints by system
Where the 2004 Mercedes-Benz C320 has problems
15 complaints grouped by the system owners reported.
4Fuel/propulsion system
2Visibility
2Air bags1 crash/fire/injury
1Engine
1Engine and engine cooling
1Equipment
1Equipment adaptive/mobility
1Fuel system, gasoline
1Latches/locks/linkages
88 other systems
| System | Complaints | Crash, fire or injury |
|---|---|---|
| Fuel/propulsion system | 4 | 0 |
| Visibility | 2 | 0 |
| Air bags | 2 | 1 |
| Engine | 1 | 0 |
| Engine and engine cooling | 1 | 0 |
| Equipment | 1 | 0 |
| Equipment adaptive/mobility | 1 | 0 |
| Fuel system, gasoline | 1 | 0 |
| Latches/locks/linkages | 1 | 0 |
| 8 other systems | 8 | 0 |
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
3 recalls
2004 Mercedes-Benz C320 recalls and how many were fixed
Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.
repaired · 2025 Q4
Visibility: sun/moon roof assembly
Risk. A detached sunroof panel may become a road hazard, increasing the risk of a crash.
repaired · 2026 Q1
Visibility: sun/moon roof assembly
Risk. A detached glass panel can separate from the vehicle and become a road hazard, increasing the risk of a crash.
Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Mercedes-Benz.
Best & worst years
2004 vs. every other C320 year
Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the C320 median. How we score
'01'02'03'04'05'06'07
- Avoid
- Caution
- Solid
- Best
- Not rated
In owners' words
What C320 owners report
Recent fuel/propulsion system complaints filed with NHTSA, shortened. Personal details are removed.
I SMELT FUEL INSIDE MY CAR WHENEVER MY CAR WOULD BE FILLED TO A FULL TANK OF GAS AND FOR A PERIOD OF TIME UNTIL THE FUEL LEVEL DROPPED. MY CAR STARTED TO DRIVE FUNNY AND NOT ACCELERATE NORMALLY THEN STOPPED ALL TOGETHER. MERCEDES DIAGNOSED IT AS A FUEL SYSTEM ISSUE. I BOUGHT THE PARTS AT MERCEDES…
MY VEHICLE HAS THE SAME PROBLEM AS MANY OTHER MERCEDES BENZ OWNERS THE FUEL SMELL INSIDE THE CABIN BECAUSE A FAILURE IN THE FUEL SENDING UNITS. *TR
TL* THE CONTACT OWNS A 2004 MERCEDES BENZ E320. THE CONTACT SMELLED A STRONG GASOLINE ODOR COMING FROM VEHICLE. THE CONTACT REMOVED THE REAR SEAT AND DISCOVERED THAT THE DRIVER'S SIDE REAR WHEEL WAS FILLED WITH GASOLINE. THE VEHICLE WAS TAKEN TO A MECHANIC, WHO DIAGNOSED THAT THE FUEL PRESSURE…
Own a 2004 C320?
Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.