Mercedes-Benz S400 Problems by Model Year

NHTSA recorded 21 consumer complaints across the 2 model years of the Mercedes-Benz S400 (2010–2011) that have at least 5 complaints. 2010 has the most, with 16. Across all years, the part named most often is electrical system (12 mentions). Pick a model year below to see its parts, mileage, recalls and service bulletins.

All S400 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.

Parts named most often, all years

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

• Electrical system12 43%
• Engine5 18%
• Fuel system4 14%
• Suspension2 7.1%
• Other or unknown2 7.1%
• Wheels1 3.6%
• Vehicle speed control1 3.6%
• Transmission and drivetrain1 3.6%

Example complaints

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

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