2006 Mercedes-Benz SL500: common problems
Owners of the 2006 Mercedes-Benz SL500 filed 13 complaints with NHTSA, most often about service brakes and suspension. Details by component below, with sources.
Key figures
- Owner complaints
- 13
What fails most often
- 1 Service brakes 31% of all complaints
- 2 Suspension 31% of all complaints
- 3 Electrical system 8% of all complaints
- 4 Exterior lighting 8% of all complaints
- 5 Latches, locks, linkages 8% of all complaints
- 6 Powertrain 8% of all complaints
- 7 Vehicle speed control 8% of all complaints
- 8 Visibility 8% of all complaints
- Service brakes: 4 complaints (31% of all).
- Suspension: 4 complaints (31% of all).
- Electrical system: 1 complaints (8% of all).
- Exterior lighting: 1 complaints (8% of all).
- Latches, locks, linkages: 1 complaints (8% of all).
Symptoms owners describe
How many of the 13 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) |
|---|---|---|---|
| Service brakes | 4 | 0 | 0 |
| Suspension | 4 | 0 | 0 |
| Electrical system | 1 | 0 | 0 |
| Exterior lighting | 1 | 0 | 0 |
| Latches, locks, linkages | 1 | 0 | 0 |
| Powertrain | 1 | 0 | 0 |
| Vehicle speed control | 1 | 0 | 0 |
| Visibility | 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.
The contact stated that while operating the vehicle, the abs warning light remained illuminated. The vehicle was taken to astorg motor company located at 2908 7th st, parkersburg, [ZIP], who replaced the abs brake compressor. Later while driving, the message stop pump brakes, was displayed on the instrument panel.
The 2006 mb sl500's are prone to abc (active body control) failures. Mercedes benz is aware of this issue, but they will not offer any assistance in repairing it. The cost to repair this system is approx. $4,000. If the vehicle is in motion, it is very possible that the driver may lose control of the car.
On 04/14/2019 while driving, red dash warning lights came on warning of lost braking and to stop. At the same time two separate warning sounds filled the cars cabin. I tried the brakes, no response, I down shifted, and stood both feet on brakes and finally shifted to neutral to come to complete stop.
Consumer writes in regards to sbc warning cluster illuminated and brake failure. The consumer stated the brakes failed while driving causing the vehicle to roll through an intersection. The consumer limped three blocks home. Fault codes c25ds, c26de, c26bb, and c233d in the sbc system.
On many occasions I've almost been hit because transmission fails to shift into passing gear. Also will happen when coming up to a red light then, light changes to green and you press accelerator to go but car will hardly go.
When the car is turned on, the srs light comes on, the rollbar light on, command center off/on/off/on, windshield wipers don't work, seat warmers/coolers inop, auto headlights inop.....all these problems are connected and intermittent.
While driving approximately 25 mph, a loud noise emitted from the front end of the vehicle and the active body control warning light illuminated. The contact merged the vehicle over to the emergency lane. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure.
I believe this should be a recall item from mercedes benz as lots of people are having the same problem and this is a very expensive fix for the consumer. My car only has 43k miles and we have replaced 3 sets of tires and it is so expensive to replace.
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 9,843 of 36,656 model years in the NHTSA data (top 27% most complained about).
On average one model year of the SL500 has 14 complaints (16 years in the data). This year has 13, about average.
What to check before buying
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
- 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.
- Exterior lighting. Headlamps, leveling, sensors and mounts after a frontal hit.
Other years of this model
Questions and answers
What are the most common problems with the 2006 Mercedes-Benz SL500?
Owner complaints to NHTSA most often mention: service brakes, suspension, electrical system. Total complaints: 13. The most frequent symptoms in complaint texts: warning lights, check engine (31%), brake failure (15%), headlights and tail lights (15%).
How many service bulletins (TSB) were issued for the 2006 Mercedes-Benz SL500?
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 2006 Mercedes-Benz SL500 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 2006 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.