Mercedes G 55 Amg MOT Pass Rate
Overall pass rate across all manufacture years, based on 41 real MOT test results. Failure rate: 36.6%.
Data from official DVSA MOT testing records
Mercedes G 55 Amg MOT Reliability Overview
The Mercedes G 55 Amg is a rare vehicle in the UK, with 41 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 63.4% and a failure rate of 36.6%, which is around the UK average of approximately 37%.
Based on this data, the Mercedes G 55 Amg earns a "Average" reliability rating. The average Mercedes G 55 Amg presents for MOT with approximately 41,786 miles on the clock.
The most common MOT failure for the Mercedes G 55 Amg is Lamps, Reflectors and Electrical Equipment, affecting 34.1% of all tests. 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. The second most common issue is Lamps, reflectors and electrical equipment at 24.4%. Brakes rounds out the top three at 22.0%. 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
* 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 | Lamps, Reflectors And Electrical Equipment | 70.7% | 29 |
| 2 | Brakes | 29.3% | 12 |
| 3 | Steering | 12.2% | 5 |
| 4 | Body, Chassis, Structure | 7.3% | 3 |
| 5 | Suspension | 4.9% | 2 |
| 6 | Noise, Emissions And Leaks | 4.9% | 2 |
| 7 | Tyres | 4.9% | 2 |
| 8 | Body, Structure And General Items | 2.4% | 1 |
| 9 | Driver's View Of The Road | 2.4% | 1 |
Failures per 10,000 Miles
avg. 41,786 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 |
|---|---|---|---|
| Lamps & Electrical | 16.93 | 70.7% | 29 |
| Brakes | 7.00 | 29.3% | 12 |
| Steering | 2.92 | 12.2% | 5 |
| Body & Structure | 2.33 | 9.7% | 4 |
| Suspension | 1.17 | 4.9% | 2 |
| Noise, emissions and leaks | 1.17 | 4.9% | 2 |
| Tyres | 1.17 | 4.9% | 2 |
| Visibility | 0.58 | 2.4% | 1 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Mercedes G 55 Amg has 41,786 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 G 55 Amg has a mileage-adjusted failure rate of 8.76% per 10,000 miles driven. The average across all makes is 5.38%, so this model is worse than average.
About Mercedes G 55 Amg MOT Data
The Mercedes G 55 Amg is a rare vehicle in the UK, with 41 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 63.4% and a failure rate of 36.6%, which is around the UK average of approximately 37%.
For Mercedes G 55 Amg owners, these results suggest average reliability — some preparation before MOT can improve pass chances. Focus your pre-MOT checks on lamps, reflectors and electrical equipment and lamps, reflectors and electrical equipment 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 G 55 Amg is likely to perform.
Lamps, Reflectors and Electrical Equipment — 34.1% of failures
Lamps, Reflectors and Electrical Equipment issues account for 34.1% of MOT failures on the Mercedes G 55 Amg. 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.
Lamps, reflectors and electrical equipment — 24.4% of failures
Lamps, reflectors and electrical equipment issues account for 24.4% of MOT failures on the Mercedes G 55 Amg. 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.
Brakes — 22.0% of failures
Brakes issues account for 22.0% of MOT failures on the Mercedes G 55 Amg. 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).
Frequently Asked Questions
What is the MOT pass rate for the Mercedes G 55 Amg?
Based on 41 (based on limited data) MOT tests in our database, the Mercedes G 55 Amg has an overall pass rate of 63.4% (36.6% fail rate).
What are the most common MOT failures on a Mercedes G 55 Amg?
The top 3 reasons a Mercedes G 55 Amg fails its MOT are: 1. Lamps, Reflectors and Electrical Equipment (34.1%), 2. Lamps, reflectors and electrical equipment (24.4%), 3. Brakes (22.0%). Check these areas before booking your MOT.
Is the Mercedes G 55 Amg reliable?
With a 36.6% MOT failure rate, the G 55 Amg is about average compared to the UK average of ~40%.
What should I check before an MOT on my Mercedes G 55 Amg?
Based on failure data, focus on: Lamps, Reflectors and Electrical Equipment (34.1%); Lamps, reflectors and electrical equipment (24.4%); Brakes (22.0%). 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.