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Mercedes-Benz R350Model year report

2009 Mercedes-Benz R350 Problems

Complaints
15filed with NHTSA
Median mileage
75,000miles, 6 complaints with mileage
Recalls
32 do-not-drive
Trend
RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.
NHTSA crash rating
—overall rating starts with 2011 models
EPA fuel economy
16 mpgcombined, 3.5L 6-cyl 4WD/AWD · 15 city / 19 hwy

Sources: NHTSA records for the 2009 Mercedes-Benz R350 (complaints, recalls, investigations), EPA fuel economy. Report an error

NHTSA recorded 15 consumer complaints for the 2009 Mercedes-Benz R350. The part named most often is air bags, with 8 complaints (53% of the total), followed by visibility (3) and electrical system (1). 6 of the complaints include a mileage, and 17% of those were filed for vehicles with under 50,000 miles; the median is 75,000 miles. NHTSA lists 3 recall campaigns (2 marked do-not-drive) and 79 technical service bulletins for this model year. Air bags complaints overlap with 1 recall campaign covering the inflator module and 3 technical service bulletins filed under the same part. Visibility complaints overlap with 3 technical service bulletins filed under the same part.

This model year has fewer than 25 complaints on record, so the numbers below can change a lot with a few new reports.

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.

Example complaints

Air bags: “Drivers side rear air bag constantly losing air pressure. No warning light, both while parked and while driving. Fender nearly touches the tire, vehicle leans and becomes unstable. No visual evidence of cracked or deterioration .”

NHTSA complaint #10648566, filed 2014-10, 75,000 miles

Visibility (wipers, defrost, mirrors): “My family and I were driving home from vacation on interstate 95 north. There was a heavy downpour of rain, and in the midst of all that rain, the windshield wipers cease to operate. We began to panic because the rain was so heavy. I began to turn the switch to the windshield wiper off and on. Finally, I had to turn the car off and then, back on. The windshield wipers worked partially to our final destination. On a different day, my wife was driving the 2009 mercedes benz R350 on interstate 295 north on her way to work, it started to rain very heavily. …”

NHTSA complaint #10523594, filed 2013-07, 75,000 miles

Electrical system: “Wife is disabled with a back injury lumbar support has failed 4 times in 7 months part was finally ordered from germany and the item seems fixed whining noise comes from under the hood. Mercedes engineer says it is a AC pressure release valve...and refuses to fix it again.....car was in the dealership 4 times for this.”

NHTSA complaint #10347761, filed 2010-08, 3,000 miles

Mileage when problems were reported

17% of the 6 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 51,000 and 77,000 miles.

17%0–100%10–250%25–5017%50–7550%75–10017%100–1500%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (6 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 75,000 miles.

Complaints by year filed

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

201020112013201420162017201852023
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 2009 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 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 2009 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. 79 on record; the latest 10 are shown.

See all 79 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 2009 Mercedes-Benz R350 have?

NHTSA recorded 15 consumer complaints for the 2009 Mercedes-Benz R350 as of Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2009 Mercedes-Benz R350 is reported most often?

Air bags is named most often, in 8 complaints (53% of the total), followed by visibility with 3.

Has the 2009 Mercedes-Benz R350 been recalled?

NHTSA lists 3 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 2009 Mercedes-Benz R350 get?

The EPA rates the 2009 Mercedes-Benz R350 (R350 4matic, 3.5L 6-cyl) at 16 mpg combined, 15 city and 19 highway, with an estimated annual fuel cost of $5,150 at 15,000 miles a year. Other engine and drive versions are rated differently.

At what mileage are problems with the 2009 Mercedes-Benz R350 reported?

Among the 6 complaints that include a mileage, the median is 75,000 miles and the middle half falls between 51,000 and 77,000 miles; 17% 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.