Total Complaints
6 filings
MERCEDES-BENZ CL55 · model year
6 NHTSA complaints for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2003MERCEDES-BENZCL55 carries 6 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 0 fires, 0 injuries, and 0 fatalities. 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 2003 CL55 is electrical system with 2 filings, followed by suspension (1) and engine (1). 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 2003 CL55. 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
6 filings
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
At or below the fleet median complaint volume.
| Component | Count |
|---|---|
| ELECTRICAL SYSTEM | 2 |
| SUSPENSION | 1 |
| ENGINE | 1 |
| AIR BAGS | 1 |
| SEATS | 1 |
The seat occupancy sensor on the passenger seat of this car is malfunctioning. This is a RECOGNIZED PROBLEM for Mercedes cars. There are numerous websites and YouTube videos describing this problem, offering replacement sensors, offering bypass kits and describing how to make this repair. (Please see attached for small sample). But Mercedes does not acknowledge this problem and has not responded to correspondence about the problem. Instead, the local dealer has said that it will cost >$1,000 to diagnose the problem and that they will probably have to replace the entire bottom section of the seat, which would cost at least $5,000 for parts and labor. This problem WILL cause the child safety seat feature to malfunction and may keep the passenger side airbag from deploying in a collision. The consumer stated the seat occupancy is defective and the parts are not available for his vehicle.
The seat occupancy sensor on the passenger seat of this car is malfunctioning. This is a RECOGNIZED PROBLEM for Mercedes cars. There are numerous websites and YouTube videos describing this problem, offering replacement sensors, offering bypass kits and describing how to make this repair. (Please see attached for small sample). But Mercedes does not acknowledge this problem and has not responded to correspondence about the problem. Instead, the local dealer has said that it will cost >$1,000 to diagnose the problem and that they will probably have to replace the entire bottom section of the seat, which would cost at least $5,000 for parts and labor. This problem WILL cause the child safety seat feature to malfunction and may keep the passenger side airbag from deploying in a collision. The consumer stated the seat occupancy is defective and the parts are not available for his vehicle.
The Instrument cluster has no light so I cannot see the speed. The dealer refuses the recall. RECALL - #06V028000
TL* THE CONTACT OWNS A 2002 (NA) MERCEDES BENZ CL55. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 65 MPH, THE INSTRUMENT CLUSTER LIGHTS SUDDENLY SHUT OFF AND THE DRIVER WAS UNABLE TO READ THE INSTRUMENT GAUGES. THE CAUSE OF THE FAILURE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 80,000.
Mileage: 80,000
TL* THE CONTACT OWNS A 2003 MERCEDES BENZ CL55. THE CONTACT STATED THAT THE ACTIVE BODY CONTROL WARNING LIGHT REMAINED ILLUMINATED. THE DEALER REPLACED THE HYDRAULIC FLUID AND RESET THE LIGHT HOWEVER, THE FAILURE WAS NOT CORRECTED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC TO HAVE A DIAGNOSTIC PERFORMED. THE FAILURE WAS LOCATED AT THE BODY CONTROL SYSTEM, WHICH WAS FOUND TO BE CORRODED AND CAUSED THE STEEL LINING OF THE HOSES TO CORRODE AND LEAK HYDRAULIC FLUID. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 37,000 AND THE CURRENT MILEAGE WAS 51,000.
Mileage: 37,000
TL* THE CONTACT OWNS A 2003 MERCEDES BENZ CL55 AMG. THE CONTACT STATED THAT WHEN DRIVING AT VARIOUS SPEEDS, HE NOTICED THAT THE ACTIVE BODY CONTROL (ABC) WARNING LIGHT WAS ILLUMINATED. IMMEDIATELY AFTER THE WARNING LIGHT ILLUMINATED, THE REAR OF THE VEHICLE DROPPED TO THE GROUND. THE VEHICLE WAS TOWED TO THE DEALER WHERE THE CONTACT WAS ADVISED THAT THE ABC SYSTEM FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED HOWEVER, THE FAILURE RECURRED APPROXIMATELY TWO MONTHS LATER. THE VEHICLE WAS TAKEN BACK TO THE DEALER FOR FURTHER REPAIRS. THE MANUFACTURER WAS CONTACTED AND OFFERED NO ASSISTANCE. THE FAILURE MILEAGE WAS APPROXIMATELY 105,000. THE CURRENT MILEAGE WAS APPROXIMATELY 105,471. THE VIN WAS NOT AVAILABLE. *TR
Mileage: 105,000
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.