Total Complaints
102 filings
MERCEDES-BENZ C320 · model year
102 NHTSA complaints, 4 crash reports for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2002MERCEDES-BENZC320 carries 102 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 4 crashes, 3 fires, 6 injuries, and 1 fatality. No NCAP 5-star crash-test rating is available for this model year in the federal database.
Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2002 C320 is electrical system with 29 filings, followed by seats (21) and electronic stability control (esc) (5). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability.
NHTSA currently has 15 investigation files overlapping the 2002 C320. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.
Total Complaints
102 filings
Crashes Reported
4 reports
Source
NHTSA ODI
Federal complaints database
At or below the fleet median complaint volume.
| Component | Count |
|---|---|
| ELECTRICAL SYSTEM | 29 |
| SEATS | 21 |
| ELECTRONIC STABILITY CONTROL (ESC) | 5 |
| ELECTRICAL SYSTEM:12V/24V/48V BATTERY | 4 |
| EXTERIOR LIGHTING | 4 |
| POWER TRAIN:AUTOMATIC TRANSMISSION | 3 |
| UNKNOWN OR OTHER | 3 |
| AIR BAGS:FRONTAL | 2 |
| SEATS:FRONT ASSEMBLY:POWER ADJUST | 2 |
| ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL | 2 |
| AIR BAGS | 2 |
| FUEL/PROPULSION SYSTEM | 2 |
| STEERING:GEAR BOX:SHAFT PITMAN | 1 |
| EQUIPMENT | 1 |
| VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR | 1 |
Battery drains after being parked overnight, 58,000 miles, dealer maintained since new. Driven by a little old lady until I bought it. Took it to the dealer and they replaced one of the seat modules. Soon afterward, the problem recurred. Took it back to the dealer and they said it was a defective fuse box and replaced it for $650. Went to pick up the car and the battery was dead again. After some complaining, they refunded the bill. They looked at it again and said the problem was somewhere in the dashboard and it would cost $2300 just to take it apart and look for a bad module. They offered $2300 trade in toward a new or CPO car, and said my car would be sent to the crusher. I took the car back and installed a remote operated battery cutoff, and have been driving it ever since. Other than disturbing the engine computer, it's been running well for three years and 20,000 miles. Lovely car otherwise.
Suddenly started driving badly on the highway. It would swerve side to side after hitting a bump. The rear sits about two inches lower than the front. My trusty independent mechanic said I should check the rear subframe and refrain from driving the car. KBB lists a safety recall for this issue, stating that the rear subframe wasn't sufficiently rustproofed. Mercedes and NHTSA do not list this recall, and my local dealer says the repair will cost around $3,000. May have to scrap the car with 81,000 miles on it.
While changing one of the lights in the headlight housing, I found the wiring's insulation rotting off all the wires, exposing the bare copper presenting a fire hazard.
While changing one of the lights in the headlight housing, I found the wiring's insulation rotting off all the wires, exposing the bare copper presenting a fire hazard.
Vehicle constantly smells like gas inside the cabin, it makes me dizzy and affects my head overall health inhaling vapors. At first I thought I could handle it, but it just gives me nonstop headaches and I'm afraid one spark will ignite/ explode my entire vehicle. This happens everytime I fill the gas tank. I heard their was a warranty extension but don't believe me vehicle was included which is unfortunate. Their is a check engine light informing of a EVAP Leak.
Vehicle constantly smells like gas inside the cabin, it makes me dizzy and affects my head overall health inhaling vapors. At first I thought I could handle it, but it just gives me nonstop headaches and I'm afraid one spark will ignite/ explode my entire vehicle. This happens everytime I fill the gas tank. I heard their was a warranty extension but don't believe me vehicle was included which is unfortunate. Their is a check engine light informing of a EVAP Leak.
Vehicle constantly smells like gas inside the cabin, it makes me dizzy and affects my head overall health inhaling vapors. At first I thought I could handle it, but it just gives me nonstop headaches and I'm afraid one spark will ignite/ explode my entire vehicle. This happens everytime I fill the gas tank. I heard their was a warranty extension but don't believe me vehicle was included which is unfortunate. Their is a check engine light informing of a EVAP Leak.
TL* THE CONTACT OWNS A 2002 MERCEDES BENZ C320. THE CONTACT STATED THAT THE BATTERY WAS DRAINED AFTER THE VEHICLE WAS PARKED AND TURNED OFF. THE VEHICLE FAILED TO RESTART. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THE DRIVER'S SIDE SEAT MODULE WAS DEFECTIVE WHICH CAUSED THE BATTERY TO DRAIN. THE MODULE WAS UNPLUGGED TO PREVENT THE BATTERY FROM BEING DRAINED. THE MANUFACTURER AND LOCAL DEALER WERE NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 114,000.
Mileage: 114,000
TL* THE CONTACT OWNS A 2002 MERCEDES BENZ C320. THE CONTACT STATED THAT THE BATTERY WAS DRAINED AFTER THE VEHICLE WAS PARKED AND TURNED OFF. THE VEHICLE FAILED TO RESTART. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC TO BE DIAGNOSED. THE CONTACT WAS INFORMED THAT THE DRIVER'S SIDE SEAT MODULE WAS DEFECTIVE WHICH CAUSED THE BATTERY TO DRAIN. THE MODULE WAS UNPLUGGED TO PREVENT THE BATTERY FROM BEING DRAINED. THE MANUFACTURER AND LOCAL DEALER WERE NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 114,000.
Mileage: 114,000
TL* THE CONTACT OWNED A 2002 MERCEDES-BENZ C320. THE CONTACT CALLED ON BEHALF OF THE DRIVER. WHILE DRIVING AT AN UNKNOWN SPEED, THE DRIVER LOST CONTROL OF THE VEHICLE. THE VEHICLE SPUN AROUND SEVERAL TIMES AND CRASHED INTO A TREE. THE AIR BAGS FAILED TO DEPLOY AND THE VEHICLE CAUGHT ON FIRE. THE DRIVER WAS KILLED ON IMPACT. A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED BY THE POLICE AND DEEMED DESTROYED. THE DEALER WAS NOT CONTACTED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT DIAGNOSED. THE FAILURE MILEAGE WAS UNKNOWN. *DT*JB
BATTERY DRAINING
SEATS CONTROL MODULE
WAS DRIVING ON HIGHWAY WHEN ESP, BAS AND ABS LIGHTS SHOW UP, AND SPEEDOMETER DISPLAY STOPS WORKING - SPEED READING GOES TO ZERO, THOUGH THERE IS NO REDUCTION IN SPEED. GET TO DESTINATION. ON RETURN IT HAPPENS AGAIN. THIS TIME I GO TO REST AREA, STOP THE CAR, REMOVE THE KEY AND RESTART. THE CAR REFUSES TO MOVE OUT OF PARK. CALL ROADSIDE ASSISTANCE AND GET INSTRUCTION TO OVERRIDE PARK, DRIVE HOME WITH FLASHERS ON - VERY ROUGH RIDE QUALITY. TOW TO DEALER NEXT DAY, THEY ARE NOT SURE IF NEW PART WILL FIX IT, EVEN IF $1850 PART IS REPLACED. LOTS OF ELECTRICAL PROBLEMS OVER THE YEARS. TURN LIGHTS GO OUT ROUTINELY. CHANGED CD CHANGER. SEAT DRAINS BATTERY,HAD TO DISCONNECT IT. POOR ELECTRICAL SENSORS ALL AROUND. NOW IT ALSO HAS RUST DAMAGE, ALL OF A SUDDEN, AT THE BOTTOM OF DOORS.
Mileage: 125,000
WAS DRIVING ON HIGHWAY WHEN ESP, BAS AND ABS LIGHTS SHOW UP, AND SPEEDOMETER DISPLAY STOPS WORKING - SPEED READING GOES TO ZERO, THOUGH THERE IS NO REDUCTION IN SPEED. GET TO DESTINATION. ON RETURN IT HAPPENS AGAIN. THIS TIME I GO TO REST AREA, STOP THE CAR, REMOVE THE KEY AND RESTART. THE CAR REFUSES TO MOVE OUT OF PARK. CALL ROADSIDE ASSISTANCE AND GET INSTRUCTION TO OVERRIDE PARK, DRIVE HOME WITH FLASHERS ON - VERY ROUGH RIDE QUALITY. TOW TO DEALER NEXT DAY, THEY ARE NOT SURE IF NEW PART WILL FIX IT, EVEN IF $1850 PART IS REPLACED. LOTS OF ELECTRICAL PROBLEMS OVER THE YEARS. TURN LIGHTS GO OUT ROUTINELY. CHANGED CD CHANGER. SEAT DRAINS BATTERY,HAD TO DISCONNECT IT. POOR ELECTRICAL SENSORS ALL AROUND. NOW IT ALSO HAS RUST DAMAGE, ALL OF A SUDDEN, AT THE BOTTOM OF DOORS.
Mileage: 125,000
WAS DRIVING ON HIGHWAY WHEN ESP, BAS AND ABS LIGHTS SHOW UP, AND SPEEDOMETER DISPLAY STOPS WORKING - SPEED READING GOES TO ZERO, THOUGH THERE IS NO REDUCTION IN SPEED. GET TO DESTINATION. ON RETURN IT HAPPENS AGAIN. THIS TIME I GO TO REST AREA, STOP THE CAR, REMOVE THE KEY AND RESTART. THE CAR REFUSES TO MOVE OUT OF PARK. CALL ROADSIDE ASSISTANCE AND GET INSTRUCTION TO OVERRIDE PARK, DRIVE HOME WITH FLASHERS ON - VERY ROUGH RIDE QUALITY. TOW TO DEALER NEXT DAY, THEY ARE NOT SURE IF NEW PART WILL FIX IT, EVEN IF $1850 PART IS REPLACED. LOTS OF ELECTRICAL PROBLEMS OVER THE YEARS. TURN LIGHTS GO OUT ROUTINELY. CHANGED CD CHANGER. SEAT DRAINS BATTERY,HAD TO DISCONNECT IT. POOR ELECTRICAL SENSORS ALL AROUND. NOW IT ALSO HAS RUST DAMAGE, ALL OF A SUDDEN, AT THE BOTTOM OF DOORS.
Mileage: 125,000
TL*THE CONTACT OWNS A 2002 MERCEDES C320. THE CONTACT STATED THAT THE VEHICLE WOULD NOT START. THE CONTACT MENTIONED THAT AFTER AN HOUR, THE VEHICLE WAS ABLE TO START. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE FAILURE MILEAGE WAS 123,384.
Mileage: 123,384
TL*THE CONTACT OWNS A 2002 MERCEDES BENZ C320. THE CONTACT STATED THAT WHILE DRIVING AT 45 MPH, THE INSTRUMENT PANEL FAILED TO FUNCTION. AS A RESULT, THE CONTACT WAS UNABLE TO READ THE GAUGES AND THE INDICATORS. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC. THE MECHANIC WAS UNABLE TO DIAGNOSE OR REPAIR THE VEHICLE. THE FAILURE RECURRED ON NUMEROUS OCCASIONS. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE CONTACT WAS AWARE OF NHTSA CAMPAIGN NUMBER: 06V028000 (INTERIOR LIGHTING) HOWEVER, THE VIN WAS NOT INCLUDED. THE FAILURE MILEAGE WAS 102,000.
Mileage: 102,000
TL*THE CONTACT OWNS A 2002 MERCEDES BENZ C320. THE CONTACT STATED THAT THE ELECTRONIC STABILITY CONTROL LIGHT ILLUMINATED ON THE INSTRUMENT PANEL AND SMOKE STARTED TO EMIT FROM UNDER THE HOOD. THE VEHICLE WAS NOT TAKEN TO THE DEALER. THE MANUFACTURER WAS NOT INFORMED OF THE ISSUE. THE FAILURE MILEAGE WAS 127,000.
Mileage: 127,000
THE SEAT CONTROL UNITS DO NOT SHUT OFF AND CONTINUALLY DRAIN THE BATTERY. THIS IS A WIDESPREAD PROBLEM FOR THIS MODEL CAR. *TR
Mileage: 84,300
TL* THE CONTACT OWNS A 2002 MERCEDES BENZ C320. THE CONTACT STATED THAT THE VEHICLE FAILED TO START. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE TECHNICIAN DIAGNOSED THAT THE POWER SEAT MODULE WAS DRAINING THE BATTERY AND AS A RESULT, IT NEEDED TO BE REPLACED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND CURRENT MILEAGE WAS 81,000.
Mileage: 81,000
Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Read our methodology — how this data is sourced, computed, and verified.