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Mercedes Benz S 320 Cdi MOT Check

MOT pass rates, common failures, and reliability data for the Mercedes Benz S 320 Cdi. Check any S 320 Cdi by registration number below.

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93.0%

Avg Pass Rate

+2.8%

vs Mercedes Benz Avg

8

Year Ranges

Excellent

Reliability

Mercedes Benz S 320 Cdi — MOT Reliability Overview

The Mercedes Benz S 320 Cdi has an average MOT pass rate of 93.0%, which is 2.8 percentage points above the Mercedes Benz brand average of 90.2%. This is a strong result, indicating that the S 320 Cdi is well-engineered and tends to age well mechanically. Owners can expect fewer surprises at MOT time.

Before buying a used Mercedes Benz S 320 Cdi, we recommend checking the full MOT history, write-off status, outstanding finance, and stolen vehicle status. These checks can be done for free using the registration number.

MOT Pass Rate by Year

How the Mercedes Benz S 320 Cdi performs at MOT across different model years.

2009

Based on 70 vehicles

91.4%Excellent
Mercedes Benz average: 90.2%

2008

Based on 171 vehicles

90.6%Excellent
Mercedes Benz average: 90.2%
Mileage at 10yr

238k mi

2007

Based on 124 vehicles

91.1%Excellent
Mercedes Benz average: 90.2%
Mileage at 10yr

263k mi

2006

Based on 171 vehicles

90.6%Excellent
Mercedes Benz average: 90.2%
Mileage at 10yr

240k mi

2005

Based on 54 vehicles

96.3%Excellent
Mercedes Benz average: 90.2%

2004

Based on 90 vehicles

91.1%Excellent
Mercedes Benz average: 90.2%

2003

Based on 92 vehicles

97.8%Excellent
Mercedes Benz average: 90.2%

2002

Based on 58 vehicles

94.8%Excellent
Mercedes Benz average: 90.2%

Other Mercedes Benz Models

Compare MOT reliability across Mercedes Benz models.

Mercedes Benz E 300

94.2% pass rate

Mercedes Benz E

83.5% pass rate

Mercedes Benz Amg Gla 45 S 4matic+ Auto

92.7% pass rate

Mercedes Benz V

85.8% pass rate

Mercedes Benz Vito 112

87.8% pass rate

Mercedes Benz Sl 500

100.0% pass rate

Useful MOT Guides

Common MOT Failures

The most common reasons UK vehicles fail their MOT — and how to prepare.

MOT Checklist

Pre-MOT checklist to improve your chances of passing first time.

Advisory vs Failure

Understanding the difference between MOT advisories and failures.

See detailed fault analysis for Mercedes Benz S 320 Cdi

Mercedes Benz S 320 Cdi — Frequently Asked Questions

Common questions about the Mercedes Benz S 320 Cdi MOT and reliability.

What is the MOT pass rate for the Mercedes Benz S 320 Cdi?
The average MOT pass rate for the Mercedes Benz S 320 Cdi is 93.0% compared to the Mercedes Benz average of 90.2%. Pass rates vary by year — check the year-by-year breakdown on this page for details.
What are the most common MOT failures on a Mercedes Benz S 320 Cdi?
Check the detailed breakdown on this page for specific failure data by year range.
Is the Mercedes Benz S 320 Cdi reliable?
With an average MOT pass rate of 93.0%, the Mercedes Benz S 320 Cdi is rated as "Excellent" for reliability. This is a strong result suggesting good build quality and fewer common defects.
How do I check the MOT history of a Mercedes Benz S 320 Cdi?
Enter the vehicle's registration number in the search box at the top of this page. You will instantly see the complete MOT history including every test result, mileage readings, advisories, and dangerous defects — completely free.
What mileage should I expect on a Mercedes Benz S 320 Cdi?
Typical mileage for the Mercedes Benz S 320 Cdi: 238,205 miles at 10 years. Use these benchmarks when evaluating a used S 320 Cdi to spot vehicles with unusually high or low mileage.

Check Your Mercedes Benz S 320 Cdi's MOT History

Enter the registration number for the full MOT history — free and instant.

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