AI Damage2006 Mercedes-Benz R350 reliability: common problems
Owners of the 2006 Mercedes-Benz R350 filed 99 complaints with NHTSA, most often about suspension and engine. Details by component below, with sources.
Key figures
- Owner complaints
- 99
- involving a crash
- 2
What fails most often
- 1 Suspension 26% of all complaints
- 2 Engine 17% of all complaints
- 3 Engine and cooling 16% of all complaints
- 4 Electrical system 14% of all complaints
- 5 Powertrain 13% of all complaints
- 6 Seats 9% of all complaints
- 7 Exterior lighting 7% of all complaints
- 8 Steering 5% of all complaints
- Suspension: 26 complaints (26% of all).
- Engine: 17 complaints (17% of all).
- Engine and cooling: 16 complaints (16% of all).
- Electrical system: 14 complaints (14% of all).
- Powertrain: 13 complaints (13% of all), 1 of them with a crash reported by the owner.
Symptoms owners describe
How many of the 99 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) |
|---|---|---|---|
| Suspension | 26 | 0 | 0 |
| Engine | 17 | 0 | 0 |
| Engine and cooling | 16 | 0 | 0 |
| Electrical system | 14 | 0 | 0 |
| Powertrain | 13 | 1 | 0 |
| Seats | 9 | 0 | 0 |
| Exterior lighting | 7 | 0 | 0 |
| Steering | 5 | 0 | 0 |
| Air bags | 3 | 0 | 0 |
| Fuel system | 3 | 0 | 0 |
| Service brakes | 3 | 0 | 0 |
| Structure | 3 | 0 | 0 |
| Electronic stability control | 2 | 0 | 0 |
| Vehicle speed control | 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 contact received notification of NHTSA Campaign Number: 22V315000 (Service Brakes, Hydraulic) however, the part to do the recall repair was not yet available. The dealer was made aware of the issue. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair.
My car has stalled several times, either when I am driving, or when I stop at a traffic light. Rough idling and/or running when stopped at a red light or driving at speeds that wouldnât normally be an issue. Engine stalling or misfiring, and car sometimes have trouble starting up.
As I was driving down the highway I pressed on gas pedal and vehicle made a very loud chain whine noise and it cut off in the middle of highway and never started back up.
My abs my eesp my brake light and check engine light mine anyways the whole cluster is going crazy it's hard to shift down when I'm coming to a stop not all the time but just sometimes so I got a mind of its own my speedometer goes up and down it says check my tire pressure when it's good my srs light comes on my…
May 13, 2019, my wife started the car and drove for less than a mile when her dress started smoking from the driver seat that was alight. She stopped the car and removed our 11 month old baby from the backseat and called me. She has a video of the incident.
Sudden acceleration. This has happen twice and I have not owned the car for a year. I could kill someone. Took it to dealer and three different shops and no one knows what I'm talking about help
Complaint is directed to [email] in forest grove, oregon. At time of purchase, tires were totally worn and dealer agreed to new tire replacement. Subsequent event revealed replacement tires were not new and had previously been improperly repaired.
For something as serious as a defected part in a motor should not be limited to when you purchase the vehicle, but whenever it is brought to their attention it should be repaired without hesitation since this is a manufacturing default and not something that was done by any previous owners.
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 3,509 of 32,257 model years in the NHTSA data (top 11% most complained about).
On average one model year of the R350 has 34 complaints (7 years in the data). This year has 99, above average.
What to check before buying
- Suspension. Wheel alignment, control arms, subframe, even tire wear.
- 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.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
Other years of this model
Questions and answers
What are the most common problems with the 2006 Mercedes-Benz R350?
Owner complaints to NHTSA most often mention: suspension, engine, engine and cooling. Total complaints: 99. The most frequent symptoms in complaint texts: warning lights, check engine (30%), smoke, burning smell, fire (9%), stalls while driving (6%).
How many service bulletins (TSB) were issued for the 2006 Mercedes-Benz R350?
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 R350 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.