2020 Mercedes-Benz G MOT Pass Rate
Pass rate for G models manufactured in 2020, based on 1,737 real MOT test results.
Data from official DVSA MOT testing records
This page shows all G cars tested in 2020. Want to see how cars built in 2020 hold up over time?
View 2020 Mercedes-Benz G vintage page → (95.3% current pass rate)2020 Mercedes-Benz G MOT Analysis
The 2020 Mercedes-Benz G has an MOT pass rate of 94.0% based on 1,737 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 32,149 miles on the odometer. With a 6.0% failure rate, the 2020 G is rated as "Excellent" for MOT reliability.
The leading cause of MOT failure for the 2020 Mercedes-Benz G is Tyres, responsible for 2.5% of failures. 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 range from £50–200 per tyre. Identification of the vehicle is the second most common issue at 1.8%. Brakes follows at 0.6%.
Top failures specific to 2020 models only. The overall G page may show different rankings.
What Fails Most
What Fails on This Car?
Click a category to see specific failure items.
View as table
| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Tyres | 2.5% | 44 |
| 2 | Identification Of The Vehicle | 1.8% | 31 |
| 3 | Brakes | 0.6% | 11 |
| 4 | Noise, Emissions And Leaks | 0.6% | 10 |
| 5 | Lamps, Reflectors And Electrical Equipment | 0.5% | 8 |
| 6 | Suspension | 0.3% | 5 |
| 7 | Visibility | 0.3% | 5 |
| 8 | Seat Belts And Supplementary Restraint Systems | 0.2% | 3 |
| 9 | Non-component Advisories | 0.1% | 2 |
Failures per 10,000 Miles
avg. 32,149 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 | 0.79 | 2.5% | 44 |
| Identification of the vehicle | 0.56 | 1.8% | 31 |
| Brakes | 0.20 | 0.6% | 11 |
| Noise, emissions and leaks | 0.18 | 0.6% | 10 |
| Lamps & Electrical | 0.14 | 0.5% | 8 |
| Suspension | 0.09 | 0.3% | 5 |
| Visibility | 0.09 | 0.3% | 5 |
| Seat Belts | 0.05 | 0.2% | 3 |
| Non-component advisories | 0.04 | 0.1% | 2 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 2020 Mercedes-Benz G has an MOT pass rate of 94.0% based on 1,737 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 32,149 miles on the odometer. With a 6.0% failure rate, the 2020 G is rated as "Excellent" for MOT reliability.
If you own or are considering buying a 2020 Mercedes-Benz G, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to tyres: 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. With relatively low average mileage of 32,149 miles, many of these vehicles are still in good mechanical condition.
Tyres — 2.5% of failures
Tyres issues account for 2.5% of MOT failures on 2020 Mercedes-Benz G models. 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 — 1.8% of failures
Identification of the vehicle issues account for 1.8% of MOT failures on 2020 Mercedes-Benz G models. 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.
Brakes — 0.6% of failures
Brakes issues account for 0.6% of MOT failures on 2020 Mercedes-Benz G models. Brake-related failures include worn brake pads, corroded brake discs, leaking brake lines, and faulty brake servos. These are safety-critical components — any brake deficiency will result in an MOT fail. Typical repair costs: £150–400. Pre-MOT check: Listen for squealing or grinding noises. Check brake pedal feel — if it feels spongy or goes to the floor, have the system inspected immediately. Look at brake pad thickness through the wheel spokes (minimum 3mm).
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.