Mercedes-Benz Gt MOT Pass Rate
Overall pass rate across all manufacture years, based on 7,202 real MOT test results. Failure rate: 6.1%.
Data from official DVSA MOT testing records
Mercedes-Benz Gt MOT Reliability Overview
The Mercedes-Benz Gt is a less common vehicle in the UK, with 7,202 MOT test results recorded in our database spanning 7 manufacture years. It has an overall MOT pass rate of 93.9% and a failure rate of 6.1%, which is well above the UK average of approximately 37%.
Based on this data, the Mercedes-Benz Gt earns a "Excellent" reliability rating. The average Mercedes-Benz Gt presents for MOT with approximately 18,975 miles on the clock. Manufacture year matters: 2021 models achieve the highest pass rate at 100.0%, while 2020 models have the lowest at 90.5%. This 9.5 percentage point difference suggests notable variation in build quality or component durability across production years.
The most common MOT failure for the Mercedes-Benz Gt is Tyres, affecting 9.1% of all tests. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. The second most common issue is Identification of the vehicle at 1.5%. Lamps, reflectors and electrical equipment rounds out the top three at 1.1%. Together, these top 3 failure categories account for a significant portion of all MOT failures for this model.
Top failures across all manufacture years combined. Individual year pages may show different top failures.
What Fails Most
Best Year to Buy
📈 How Each Vintage Ages
Tracking how each manufacture year's MOT pass rate changes as the car ages. Showing 5 vintages — click year chips to highlight.
Multi-line chart showing how different Mercedes-Benz Gt vintages degrade over time, from age 3 to 20 years.
Only vintages with 100+ tests in at least 3 different test years are shown. Fleet average is the UK-wide pass rate for all cars at each age.
📉 How Age Affects Reliability
MOT failure rate by vehicle age for the Mercedes-Benz Gt. The dashed red line marks when the manufacturer warranty typically expires (3 years).
Line chart showing MOT failure rate by vehicle age from 3 to 9 years, with warranty expiry marked at 3 years.
💡 What does the warranty cliff mean?
The Mercedes-Benz Gt actually sees a 7% decrease in failure rate after the warranty period. This is likely due to survivorship bias — unreliable cars are already off the road by this age. Peak failure occurs at age 4 (7.4% fail rate).
Note: pass rates may improve for very old vehicles due to survivorship bias — only well-maintained cars remain on the road.
Pass Rate by Manufacture Year
* High Fail Rate badge indicates an MOT pass rate below 65% (failure rate above 35%).
What Fails on This Car?
Click a category to see specific failure items.
View as table
| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Tyres | 9.1% | 653 |
| 2 | Identification Of The Vehicle | 1.5% | 111 |
| 3 | Lamps, Reflectors And Electrical Equipment | 1.1% | 82 |
| 4 | Noise, Emissions And Leaks | 1.0% | 75 |
| 5 | Brakes | 0.9% | 62 |
| 6 | Visibility | 0.7% | 50 |
| 7 | Non-component Advisories | 0.2% | 18 |
| 8 | Suspension | 0.2% | 18 |
| 9 | Road Wheels | 0.2% | 16 |
| 10 | Body, Chassis, Structure | 0.1% | 8 |
| 11 | Seat Belts And Supplementary Restraint Systems | 0.1% | 6 |
Failures per 10,000 Miles
avg. 18,975 miFor every 10,000 miles driven, this shows what percentage of MOT tests fail for each category. This accounts for how far cars are actually driven, not just raw pass/fail counts.
View as table
| Category | Rate / 10K mi | Raw % | Count |
|---|---|---|---|
| Tyres | 4.78 | 9.1% | 653 |
| Identification of the vehicle | 0.81 | 1.5% | 111 |
| Lamps & Electrical | 0.60 | 1.1% | 82 |
| Noise, emissions and leaks | 0.55 | 1.0% | 75 |
| Brakes | 0.45 | 0.9% | 62 |
| Visibility | 0.37 | 0.7% | 50 |
| Non-component advisories | 0.13 | 0.2% | 18 |
| Suspension | 0.13 | 0.2% | 18 |
| Wheels | 0.12 | 0.2% | 16 |
| Body & Structure | 0.06 | 0.1% | 8 |
| Seat Belts | 0.04 | 0.1% | 6 |
| Steering | 0.01 | 0.0% | 2 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Mercedes-Benz Gt has 18,975 miles when tested for MOT.
📊 Mileage-Adjusted Failure Rate
How often this car fails MOT relative to how much it's driven — a fairer comparison than raw pass rate.
The Mercedes-Benz Gt has a mileage-adjusted failure rate of 3.21% per 10,000 miles driven. The average across all makes is 5.38%, so this model is better than average.
About Mercedes-Benz Gt MOT Data
The Mercedes-Benz Gt is a less common vehicle in the UK, with 7,202 MOT test results recorded in our database spanning 7 manufacture years. It has an overall MOT pass rate of 93.9% and a failure rate of 6.1%, which is well above the UK average of approximately 37%.
For Mercedes-Benz Gt owners, these results suggest a reliable vehicle that generally passes its MOT without major issues. Focus your pre-MOT checks on tyres and identification of the vehicle for the best chance of a first-time pass. Use our detailed year-by-year breakdown and failure analysis below to understand how your specific Gt is likely to perform.
Tyres — 9.1% of failures
Tyres issues account for 9.1% of MOT failures on the Mercedes-Benz Gt. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. Typical repair costs: £50–200 per tyre. Pre-MOT check: Check tread depth with a 20p coin — if the outer band is visible, the tyre is too worn. Look for bulges, cuts, or embedded objects. Ensure all tyres match the recommended size and load rating.
Identification of the vehicle — 1.5% of failures
Identification of the vehicle issues account for 1.5% of MOT failures on the Mercedes-Benz Gt. Identification failures relate to the Vehicle Identification Number (VIN) and registration plate. The VIN must be permanently displayed and legible, and the registration plate must meet British Standard formatting. Typical repair costs: £10–50. Pre-MOT check: Ensure the VIN plate is visible and legible (usually in the windscreen or under the bonnet). Check that number plates are clean, undamaged, and use the correct font and spacing.
Lamps, reflectors and electrical equipment — 1.1% of failures
Lamps, reflectors and electrical equipment issues account for 1.1% of MOT failures on the Mercedes-Benz Gt. Lighting failures cover all external lights: headlights, tail lights, brake lights, indicators, fog lights, and reflectors. A single blown bulb will cause an MOT fail. This is one of the most preventable failure categories. Typical repair costs: £5–50. Pre-MOT check: Walk around the car and check every light — headlights (dipped and main beam), side lights, tail lights, brake lights, indicators, hazard lights, reverse light, rear fog light, and number plate lights. Replace any blown bulbs before the test.
Frequently Asked Questions
What is the MOT pass rate for the Mercedes-Benz Gt?
Based on 7,202 MOT tests in our database, the Mercedes-Benz Gt has an overall pass rate of 93.9% (6.1% fail rate).
What are the most common MOT failures on a Mercedes-Benz Gt?
The top 3 reasons a Mercedes-Benz Gt fails its MOT are: 1. Tyres (9.1%), 2. Identification of the vehicle (1.5%), 3. Lamps, reflectors and electrical equipment (1.1%). Check these areas before booking your MOT.
Is the Mercedes-Benz Gt reliable?
With a 6.1% MOT failure rate, the Gt is more reliable than average compared to the UK average of ~40%.
What should I check before an MOT on my Mercedes-Benz Gt?
Based on failure data, focus on: Tyres (9.1%); Identification of the vehicle (1.5%); Lamps, reflectors and electrical equipment (1.1%). These are the areas most likely to cause a fail. Also check all lights, tyres (minimum 1.6mm tread), and windscreen condition — these are quick wins that apply to all cars.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.