AI Damage2007 Mercedes-Benz S 550: common problems
Owners of the 2007 Mercedes-Benz S 550 filed 54 complaints with NHTSA, most often about powertrain and suspension. Details by component below, with sources.
Key figures
- Owner complaints
- 54
What fails most often
- 1 Powertrain 24% of all complaints
- 2 Suspension 22% of all complaints
- 3 Electrical system 20% of all complaints
- 4 Vehicle speed control 17% of all complaints
- 5 Engine 15% of all complaints
- 6 Engine and cooling 7% of all complaints
- 7 Air bags 6% of all complaints
- 8 Fuel/propulsion system 6% of all complaints
- Powertrain: 13 complaints (24% of all).
- Suspension: 12 complaints (22% of all).
- Electrical system: 11 complaints (20% of all).
- Vehicle speed control: 9 complaints (17% of all).
- Engine: 8 complaints (15% of all).
Symptoms owners describe
How many of the 54 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) |
|---|---|---|---|
| Powertrain | 13 | 0 | 0 |
| Suspension | 12 | 0 | 0 |
| Electrical system | 11 | 0 | 0 |
| Vehicle speed control | 9 | 0 | 0 |
| Engine | 8 | 0 | 0 |
| Engine and cooling | 4 | 0 | 0 |
| Air bags | 3 | 0 | 0 |
| Fuel/propulsion system | 3 | 0 | 0 |
| Steering | 3 | 0 | 0 |
| Structure | 3 | 0 | 0 |
| Fuel system | 2 | 0 | 0 |
| Equipment | 1 | 0 | 0 |
| Exterior lighting | 1 | 0 | 0 |
| Parking brake | 1 | 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.
I went to replace my low beam and high beam bulbs on the passenger side and found that the wiring for the low beam had 0 insulation on it and I installed the new high beam bulb and the wires starting arcing causing the car to turn off the high beams and start smoking from the headlight assembly.
Additionally, the message "Parking Brake - Check Manual" was displayed. The cause of the failure was not yet determined. The local dealer was contacted and notified of the failure. The manufacturer was not contacted. The failure mileage was 205,000.
The contact stated that the steering wheel was vibrating. The contact stated no warning lights were illuminated. The contact had taken the vehicle to a local dealer, where it was diagnosed and determined that the front strut and radial knuckles needed to be replaced. The vehicle had not been repaired.
Additionally, the vehicle had failed to start on several occasions even though there was fuel in the tank. The vehicle was taken to an independent mechanic where an unknown diagnostic test was completed.
I brought a car from a car dealer in tampa Florida and when i got the car i noticed that the car would not pickup speed after pressing the gas pedal and it was asking me to turn off the engine or it will fail . also when i tried to put in coolant.
I went to bmw to ask for a refund and repair but they refuse to do any about the car losing power. Contacts also states that the mercedes would pay for diagnosis but not to repair. I would not recommend this dealership to anyone.
Tl* the contact owns a 2007 mercedes-benz s550. While driving 60 mph, the odor of fumes emitted through the vehicle and made the contact nauseous. Medical attention was not received. The contact called olympia pre owned auto ([address], raleigh, [ZIP], [phone]) and was informed that they would call her back.
My 2007 mb s550 base model stalled as I was merging on to the expressway in heavy traffic. After sitting on side of the road for 20mins, I started the car and it was making a whining noise and when I accelerate the noise gets louder. I drove the car to the nearest mercedes-benz dealership.
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 5,128 of 36,656 model years in the NHTSA data (top 14% most complained about).
On average one model year of the S 550 has 16 complaints (13 years in the data). This year has 54, above average.
What to check before buying
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Suspension. Wheel alignment, control arms, subframe, even tire wear.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Vehicle speed control. Accelerator pedal, cruise control, throttle codes.
Other years of this model
Questions and answers
What are the most common problems with the 2007 Mercedes-Benz S 550?
Owner complaints to NHTSA most often mention: powertrain, suspension, electrical system. Total complaints: 54. The most frequent symptoms in complaint texts: stalls while driving (11%), transmission slipping (7%), warning lights, check engine (7%).
How many service bulletins (TSB) were issued for the 2007 Mercedes-Benz S 550?
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 2007 Mercedes-Benz S 550 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 2007 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 2026-11-05.