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Mercedes-BenzModel report

Mercedes-Benz S350 Problems by Model Year

NHTSA recorded 7 consumer complaints across the 1 model years of the Mercedes-Benz S350 (2012–2012) that have at least 5 complaints. 2012 has the most, with 7. Across all years, the part named most often is engine (3 mentions). Pick a model year below to see its parts, mileage, recalls and service bulletins.

All S350 model years

Years with fewer than 5 complaints are not listed. The score compares years of the same model, allowing for the era and for how long each year has collected complaints: 50 is a typical year, lower means fewer complaints. It is not adjusted for sales volume.

YearComplaintsMedian miRecallsTSBsScore (50 = typical)Trend
2012754,500070—Not enough data

Parts named most often, all years

Counts add up complaint mentions across the listed years. A complaint can name several parts.

Example complaints

One per model year, chosen for length and detail. Personal details are removed. They are consumer reports, not findings.

2012: “I did some research on mercedes 3.0l diesel motors and there seems to be an issue with the seal failing about 50,000 miles causing the motor to leak oil and the seal as well as the oil cooler need to be replaced. It is such a common problem on the 3.0l diesel engines that when you call any repair shop the first thing they ask is if the car is a diesel. Also the seal replacement is all over the mercedes blogs saying the same issue on the 3.0l diesels. …”

NHTSA complaint #10928395, filed 2016-11, 54,500 miles

Other Mercedes-Benz models

Mercedes-Benz C300
3,963 complaints
Mercedes-Benz E350
2,215 complaints
Mercedes-Benz E320
1,164 complaints
Mercedes-Benz ML350
952 complaints
Mercedes-Benz GLK350
901 complaints
Mercedes-Benz ML320
740 complaints
Mercedes-Benz C250
725 complaints
Mercedes-Benz GLC 300
657 complaints

All Mercedes-Benz models →

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. Methodology