2006 Mercedes-Benz R500: common problems
Owners of the 2006 Mercedes-Benz R500 filed 26 complaints with NHTSA, most often about powertrain and electrical system. Details by component below, with sources.
Key figures
- Owner complaints
- 26
- involving a crash
- 2
What fails most often
- 1 Powertrain 23% of all complaints
- 2 Electrical system 19% of all complaints
- 3 Steering 19% of all complaints
- 4 Seats 15% of all complaints
- 5 Suspension 15% of all complaints
- 6 Service brakes 12% of all complaints
- 7 Air bags 8% of all complaints
- 8 Electronic stability control 4% of all complaints
- Powertrain: 6 complaints (23% of all).
- Electrical system: 5 complaints (19% of all).
- Steering: 5 complaints (19% of all).
- Seats: 4 complaints (15% of all).
- Suspension: 4 complaints (15% of all).
Symptoms owners describe
How many of the 26 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 | 6 | 0 | 0 |
| Electrical system | 5 | 0 | 0 |
| Steering | 5 | 0 | 0 |
| Seats | 4 | 0 | 0 |
| Suspension | 4 | 0 | 0 |
| Service brakes | 3 | 0 | 0 |
| Air bags | 2 | 1 | 0 |
| Electronic stability control | 1 | 0 | 0 |
| Exterior lighting | 1 | 0 | 0 |
| Vehicle speed control | 1 | 1 | 0 |
| Wheels | 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.
The front and rear driver side air bags failed to deploy. The front passenger sustained injuries to the left forearm, right shoulder, and right side of the neck that did not require medical attention. A police report was not filed. The vehicle was destroyed. The manufacturer was notified of the failure.
Tl contact owns a 2006 mercedes r500. The contact stated that the driver was trying to park the vehicle while driving 5 mph and the vehicle suddenly accelerated. The vehicle continued to accelerate until it crashed into a tree. The contact didn't mention any injuries. None of the air bags deployed upon impact.
The contact stated that while driving at an undisclosed speed, she became aware that the power steering was not functioning, after which the vehicle lost all power. The contact was able to coast to the shoulder of the roadway, where the vehicle failed to restart.
My 2006 R-500 is leaning from the (front and back) passenger side, causing the vehicle to be unsecure to drive... It feels like both side tires are TOTALLY FLAT. I'm not a mechanic, but it looks like the AIR SUSPENSION IS MALFUNTION
The contact received notification of NHTSA Campaign Number: 22V315000 (Service Brakes, Hydraulic). The contact stated that while driving at an undisclosed speed, the brake pedal was depressed and went to the floorboard.
Still unaware that a fire could start from the back of the vehicle, is when we realized that the cargo area of the vehicles side panel was in complete flames! Thus, causing physical and mental injuries, smoke and property damage and a complete sense of insecurity.
I have paid $1200 a year ago to replace a defective wire harness inside the chassis, as the car smoked and almost caught fire as I had to pull off the road and tow. Am I stuck again?? [xxx] information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).
After diagnostics found that the front sam had been under water shorting the sam and almost causing vehicle to catch fire. Would need the front sam and wiring repair along with connector replacement to move forward with diagnostic. The water is coming from the firewall on the passenger side.
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 7,319 of 36,659 model years in the NHTSA data (top 20% most complained about).
On average one model year of the R500 has 10 complaints (3 years in the data). This year has 26, above average.
What to check before buying
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Steering. Steering play, power assist, rack and tie rods after a wheel impact.
- Seats. Occupant sensor, power adjustment, seat mounts.
Other years of this model
Questions and answers
What are the most common problems with the 2006 Mercedes-Benz R500?
Owner complaints to NHTSA most often mention: powertrain, electrical system, steering. Total complaints: 26. The most frequent symptoms in complaint texts: smoke, burning smell, fire (19%), steering or power steering problems (12%), jerking, harsh shifts (8%).
How many service bulletins (TSB) were issued for the 2006 Mercedes-Benz R500?
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 R500 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 2026-11-06.