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Mercedes-Benz R350Model year report

2008 Mercedes-Benz R350 Problems

Complaints
35filed with NHTSA
Median mileage
90,000miles, 21 complaints with mileage
Recalls
22 do-not-drive
Trend
FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
NHTSA crash rating
—overall rating starts with 2011 models
EPA fuel economy
17 mpgcombined, 3.5L 6-cyl RWD · 15 city / 20 hwy

Sources: NHTSA records for the 2008 Mercedes-Benz R350 (complaints, recalls, investigations), EPA fuel economy. Report an error

NHTSA recorded 35 consumer complaints for the 2008 Mercedes-Benz R350. The part named most often is suspension, with 12 complaints (34% of the total), followed by steering (10) and brakes (6). 21 of the complaints include a mileage, and 10% of those were filed for vehicles with under 50,000 miles; the median is 90,000 miles. NHTSA lists 2 recall campaigns (2 marked do-not-drive) and 68 technical service bulletins for this model year. Suspension complaints overlap with 3 technical service bulletins filed under the same part. Steering complaints overlap with 7 technical service bulletins filed under the same part.

Not compared (fewer than 3 comparable model years). Model years 2008–2023 of the same vehicle that have at least 25 complaints are compared, and a model needs at least 3 of them.

Which parts are reported most

Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.

Also reported: Latches, locks and linkages (1), Seat belts (1), Transmission and drivetrain (1).

Example complaints

Suspension: “This vehicle has a balance shaft and intake manifold issue as well as a air suspension problem. Both problems are a manufacture defect that is common in other mb R350 vehicles. Mb accepts that this vehicle model have a conglomerate of problems and is not taking responsibility to create a recall. This vehicle is always maintain and service by an authorized mb dealer and they insure that in any of the previous services the diagnosis was never identified or mention. The low suspension is a safety issue that may cause the wheels to rub against the fenders and cause driver to loose control. …”

NHTSA complaint #10475739, filed 2012-09, 107,000 miles

Steering: “Car occasionally difficult to steer after driving for distance in mountains. Fluid levels appear to be ok but passerby's tell me they can hear steering noise that I do not hear inside when driving. I saw that there is recall for this vehicle and steering rack pin- wondering if my vehicle is part of recall to be repaired by mercedes.”

NHTSA complaint #10894239, filed 2016-08, 105,000 miles

Brakes: “I have tried, since 730 this morning to find out what can be done with regard to the recall of my car. I contacted my dealer - Faulkner Mercedes in Doylestown.... who explained that they couldn't do anything, as they have neither the tools nor the parts to address this issue, and won't have for quite some time, and that I needed to call the Mercedes recall hotline. Which, I did. …”

NHTSA complaint #11464470, filed 2022-05

Electrical system: “Electrical wiring around headlamps is crumbling and exposing large lengths of bare wires, with up to about 6 of copper wiring exposed in the engine compartment. I replaced a burned out halogen headlamp in june, the other one in august, and the first one went out again about a week ago (and this rate of headlamp replacement is more or less typical; I keep two spares in my car at all times, as burnouts are so frequent). The bare wires may be contributing to the extremely short bulb life and could also cause arcing and potentially an engine fire. …”

NHTSA complaint #11023728, filed 2017-09, 115,000 miles

Mileage when problems were reported

10% of the 21 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 62,000 and 108,976 miles.

0%0–105%10–255%25–5033%50–7519%75–10029%100–15010%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (21 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 90,000 miles.

Complaints by year filed

Trend: falling. Complaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.

’10’13’15’17’19’216’25
Complaints by year the complaint was filed with NHTSA. Red bars: the last 3 full calendar years used for the trend. The current year (2026) is partial.

Fuel economy and running cost

EPA ratings for each 2008 Mercedes-Benz R350 version. Annual fuel cost is the EPA's estimate at its current fuel prices for 15,000 miles a year (55% city driving).

VersionEngineTransmissionCityHwyComb.Fuel / yr
R350 RWD3.5L 6-cyl7-speed automatic152017$4,850
R350 4matic 4WD/AWD3.5L 6-cyl7-speed automatic151916$5,150

Source: U.S. EPA and Department of Energy, fueleconomy.gov. Ratings are for comparing vehicles; real-world mileage varies with driving and conditions.

Recalls and investigations

Recall details for the 2008 Mercedes-Benz R350 → · Check a VIN at nhtsa.gov/recalls

Technical service bulletins

TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 68 on record; the latest 10 are shown.

See all 68 bulletins →

Other model years of the Mercedes-Benz R350

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
2012861,5003—18—Not enough data
20111868,1003—16—Rising
20101378,5003—16—Not enough data
20091575,0003—16—Rising
20083590,0002—17Not compared (fewer than 3 comparable model years)Falling
20074775,0002—16Not compared (before 2008)Stable
20069980,0002—16Not compared (before 2008)Falling

All Mercedes-Benz R350 model years · Best and worst years by complaints

Frequently asked questions

How many NHTSA complaints does the 2008 Mercedes-Benz R350 have?

NHTSA recorded 35 consumer complaints for the 2008 Mercedes-Benz R350 as of Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2008 Mercedes-Benz R350 is reported most often?

Suspension is named most often, in 12 complaints (34% of the total), followed by steering with 10.

Has the 2008 Mercedes-Benz R350 been recalled?

NHTSA lists 2 recall campaigns for this model year, 2 of them with a do-not-drive advisory. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.

What gas mileage does the 2008 Mercedes-Benz R350 get?

The EPA rates the 2008 Mercedes-Benz R350 (R350, 3.5L 6-cyl) at 17 mpg combined, 15 city and 20 highway, with an estimated annual fuel cost of $4,850 at 15,000 miles a year. Other engine and drive versions are rated differently.

At what mileage are problems with the 2008 Mercedes-Benz R350 reported?

Among the 21 complaints that include a mileage, the median is 90,000 miles and the middle half falls between 62,000 and 108,976 miles; 10% were filed for vehicles with under 50,000 miles.

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate. Fuel economy is from the EPA and DOE (fueleconomy.gov).

Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.