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Mercedes-Benz Common MOT Faults

MOT pass rates, common failure categories, and reliability ratings for all 22 Mercedes-Benz models, based on DVSA statistics.

82.1%

Avg Pass Rate

+0.1%

vs National Avg

22

Models

Good

Reliability

Mercedes-Benz vs National Average

The national average MOT pass rate in the UK is approximately 82%. Mercedes-Benz vehicles perform roughly in line with the national average, with some models exceeding it and others falling slightly below.

Mercedes-Benz Average82.1%
National Average82%

Most Common Mercedes-Benz MOT Failures

The top MOT failure categories across all Mercedes-Benz models, ranked by average failure percentage.

1

Lamps, reflectors and electrical equipment

14.2%
2

Suspension

13.2%
3

Brakes

11.5%
4

Tyres

9.8%
5

Exhaust, fuel and emissions

7.2%

All Mercedes-Benz Models

Click any model for a detailed fault breakdown, repair cost estimates, and buying advice.

Mercedes-Benz EQA

90.0%

2021–present · Top fault: Lamps, reflectors and electrical equipment

5 fault categories

Mercedes-Benz EQB

89.8%

2021–present · Top fault: Lamps, reflectors and electrical equipment

5 fault categories

Mercedes-Benz EQC

89.5%

2019–present · Top fault: Lamps, reflectors and electrical equipment

5 fault categories

Mercedes-Benz GLB-Class

86.0%

2019–present · Top fault: Lamps, reflectors and electrical equipment

5 fault categories

Mercedes-Benz GLC-Class

85.2%

2015–present · Top fault: Lamps, reflectors and electrical equipment

5 fault categories

Mercedes-Benz GLA-Class

84.5%

2013–present · Top fault: Lamps, reflectors and electrical equipment

5 fault categories

Mercedes-Benz GLA

84.2%

2014–present · Top fault: Lamps, reflectors and electrical equipment

5 fault categories

Mercedes-Benz AMG GT

84.0%

2015–present · Top fault: Lamps, reflectors and electrical equipment

5 fault categories

Mercedes-Benz CLA-Class

83.8%

2013–present · Top fault: Lamps, reflectors and electrical equipment

5 fault categories

Mercedes-Benz A-Class

82.8%

2004–present · Top fault: Lamps, reflectors and electrical equipment

5 fault categories

Mercedes-Benz GLE-Class

82.5%

2015–present · Top fault: Lamps, reflectors and electrical equipment

5 fault categories

Mercedes-Benz SLC

82.5%

2016–2020 · Top fault: Lamps, reflectors and electrical equipment

5 fault categories

Mercedes-Benz SLK

80.8%

2004–2016 · Top fault: Lamps, reflectors and electrical equipment

5 fault categories

Mercedes-Benz C-Class

80.5%

2000–present · Top fault: Lamps, reflectors and electrical equipment

5 fault categories

Mercedes-Benz B-Class

79.8%

2005–present · Top fault: Lamps, reflectors and electrical equipment

5 fault categories

Mercedes-Benz X-Class

79.5%

2018–2020 · Top fault: Lamps, reflectors and electrical equipment

5 fault categories

Mercedes-Benz E-Class

79.2%

1998–present · Top fault: Lamps, reflectors and electrical equipment

5 fault categories

Mercedes-Benz Citan

78.2%

2013–present · Top fault: Lamps, reflectors and electrical equipment

5 fault categories

Mercedes-Benz S-Class

78.0%

2000–present · Top fault: Lamps, reflectors and electrical equipment

5 fault categories

Mercedes-Benz V-Class

77.5%

2014–present · Top fault: Lamps, reflectors and electrical equipment

5 fault categories

Mercedes-Benz Vito

74.5%

2003–present · Top fault: Lamps, reflectors and electrical equipment

5 fault categories

Mercedes-Benz Sprinter

73.2%

2000–present · Top fault: Lamps, reflectors and electrical equipment

5 fault categories

Mercedes-Benz MOT Faults — Frequently Asked Questions

Common questions about Mercedes-Benz reliability and MOT performance.

What are the most common MOT faults on a Mercedes-Benz?
The most common MOT faults across all Mercedes-Benz models are: Lamps, reflectors and electrical equipment (14.2%), Suspension (13.2%), Brakes (11.5%). These categories account for the majority of MOT failures on Mercedes-Benz vehicles. Specific fault rates vary by model — check individual model pages for detailed breakdowns.
What is the average MOT pass rate for Mercedes-Benz?
The average MOT pass rate across all Mercedes-Benz models is 82.1%, which is 0.1 percentage points above the national average of 82%. The best-performing model is the EQA at 90.0%, while the Sprinter has the lowest pass rate at 73.2%.
Which Mercedes-Benz model is the most reliable?
Based on MOT pass rate data, the most reliable Mercedes-Benz is the EQA with a pass rate of 90.0%. This is rated "Excellent" for reliability. However, reliability depends on many factors including age, mileage, and maintenance history — always check a specific vehicle's MOT history before purchasing.
How much does it cost to fix common Mercedes-Benz MOT faults?
Repair costs for common Mercedes-Benz MOT faults vary by category. Lighting faults typically cost £20-£80, suspension issues range from £150-£500, brake repairs are usually £100-£400, tyre replacements run £50-£150 per tyre, and exhaust/emissions work can cost £80-£350. These are typical UK garage prices — costs may vary depending on the specific model and your location.

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