AI Damage2011 Mercedes-Benz CL550: common problems
Owners of the 2011 Mercedes-Benz CL550 filed 5 complaints with NHTSA, most often about electrical system and engine. Details by component below, with sources.
Key figures
- Owner complaints
- 5
What fails most often
- 1 Electrical system 20% of all complaints
- 2 Engine 20% of all complaints
- 3 Engine and cooling 20% of all complaints
- 4 Fuel/propulsion system 20% of all complaints
- 5 Powertrain 20% of all complaints
- Electrical system: 1 complaints (20% of all).
- Engine: 1 complaints (20% of all).
- Engine and cooling: 1 complaints (20% of all).
- Fuel/propulsion system: 1 complaints (20% of all).
- Powertrain: 1 complaints (20% of all).
Symptoms owners describe
How many of the 5 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 1 | 0 | 0 |
| Engine | 1 | 0 | 0 |
| Engine and cooling | 1 | 0 | 0 |
| Fuel/propulsion system | 1 | 0 | 0 |
| Powertrain | 1 | 0 | 0 |
| Other | 2 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
On October 17, 2023, my vehicle experienced a significant issueâa fire incidentâwhile I was leaving the garage of my house. According to the fire department & my insurance adjuster, it appeared that electrical components started the fire.
it has a strong gas smell in the inside. There was a recall pertaining to, "Due to the irregularity stemming from the molding process of the fuel filter flange, the filter may crack when operated in high temperatures." I live in California and it has been very hot here.
After parking the vehicle, it caught fire. The fire initiated in the engine compartment and the contact was able to extinguish the fire. The vehicle was taken to a dealer. The technician was unable to determine what caused the fire. The vehicle had not been repaired. The failure mileage was 39,000.
I was driving on the highway when the speed just dropped from 80 mph to 40 mph and brake lights, of course, did not turn on. Because of that, the driver behind me was not warned and almost crashed behind me. It was not only this incident but this happened numerous times and the problem was still not fixed.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 14,283 of 36,659 model years in the NHTSA data (top 39% most complained about).
On average one model year of the CL550 has 4 complaints (6 years in the data). This year has 5, above average.
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Fuel/propulsion system. Fuel smell, leaks, rough running, fuel-system codes.
Other years of this model
Questions and answers
What are the most common problems with the 2011 Mercedes-Benz CL550?
Owner complaints to NHTSA most often mention: electrical system, engine, engine and cooling. Total complaints: 5. The most frequent symptoms in complaint texts: smoke, burning smell, fire (40%), fuel system, fuel smell (20%).
How many service bulletins (TSB) were issued for the 2011 Mercedes-Benz CL550?
NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2011 Mercedes-Benz CL550 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2011 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-06.