Mercedes Benz S350 Bluetec B Fcy L CDI Auto (2011)
2011 Mercedes Benz S350 Bluetec B Fcy L CDI Auto
CarHunch analysed 108 real MOT records for the 2011 Mercedes Benz S350 Bluetec B Fcy L CDI Auto. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
This 2011 S350 BlueTec is a serious reliability concern: just 8% pass their MOT first time, compared to the UK average of 80%. The median mileage sits at 114,369 miles for a 13-year-old car, which is typical for age, but the real problem is that these engines are simply expensive to keep roadworthy—you're looking at frequent visits to the garage for repairs rather than advisory work.
At 0.19 failures per vehicle on average, this diesel S-Class demands a full pre-purchase inspection by a Mercedes specialist and a frank conversation with your mechanic about upcoming costs. If you're not prepared to budget £1,500–£3,000 annually for maintenance and repairs on a high-mileage luxury diesel, walk away.
What to check before buying a 2011 Mercedes Benz S350 Bluetec B Fcy L CDI Auto
Practical pre-purchase checks for this age and model.
- 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
- 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
- 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
- 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.
Before you buy a Mercedes Benz S350 Bluetec B Fcy L CDI Auto
MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.
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Mileage Distribution
Most 2011 Mercedes Benz S350 Bluetec B Fcy L CDI Auto vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.
Half of all 2011 Mercedes Benz S350 Bluetec B Fcy L CDI Auto vehicles fall between 63,070 and 121,770 miles.
MOT History Averages
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