Pass rate
86.6%
Above average — 6.4 pts ahead of the 80.2% that cars this age and mileage manage.
Across 380 recorded tests.
Typical repair bill £25–£77
2014 Mercedes-Benz G-Class MOT pass rate
- 2014
- typical 54,926 mi
Most common fault
Brakes
24.4% of faults · 20.9% nationally
mostly worn pads and discs, corroded pipes and a handbrake that will not hold.
Which year to buy
- Best 2020 96.2% pass
- Avoid 2015 83.5% pass
Across the 10 years on record, a spread of 12.7 points. See every year →
- First-attempt pass
- 85.0%
- Typical mileage
- 55k mi
The 2014 Mercedes-Benz G-Class MOT pass rate is 86.6% of its MOT tests — 6.4 points ahead of what its age and mileage predict. Brakes is the biggest single reason it fails, at 24.4% of what testers record.
Check your postcode
MOT pass rates are national — type your postcode to see how Mercedes-Benz G-Class does in your corner of the country.
Expert verdict
Emissions & leaks: 2.9× the national share
Emissions & leaks make up 15.9% of everything recorded on the 2014 Mercedes-Benz G-Class, against 5.5% nationally — 10.4 points above. Brakes are still the single largest share at 24.4%, but at 20.9% nationally that one is ordinary. A smoky diesel or a leaking joint fails on emissions more often than on wear, so ask for a recent emissions printout.
- Beats its own age and mileage. Once you allow for how old and how far these cars have been driven, the expected pass rate is 80.2% and this one manages 86.6% — 6.4 points ahead of what its age and mileage predict.
- When it fails, it costs. Only 34% of this model’s typical repairs come in under £30 in parts — the failures here tend to be the kind that need a garage rather than a bulb.
Written from this page's own figures: fault shares against the national composition, the like-for-like pass rate, and the priced repair list. How these are worked out
Watching a Mercedes-Benz G-Class? Get an email when these numbers change .
How does the 2014 Mercedes-Benz G-Class compare?
Cars of this age and mileage average 80.2%, so this figure is 6.4 points ahead of what its age and mileage predict. On a first attempt, before any retests, the figure drops to 85.0%. The median 2014 Mercedes-Benz G-Class in this dataset had covered 54,926 mi.
53% of the tests on this vehicle ran on Petrol, which passed 88.5% of the time. Pass rates also shift with the test month: tests recorded October–March passed 85.7% of the time, April–September 87.6%.
The single most recorded failure item is "Coil spring fractured or broken", noted on 2.63% of tests.
- 380 recorded tests behind this page.
- 86.6% overall pass rate, 85.0% on a first attempt.
- Across every year of the Mercedes-Benz G-Class, the average is 87.9% — best year 2020 (96.2%), worst 2015 (83.5%).
Figures count every completed test on this vehicle-year in the dataset, including retests. See methodology for the exact definition.
This page's data
- Tests analysed
- 380
- Typical mileage (median)
- 54,926 mi
- Make and model
- Mercedes-Benz G-Class
- Updated
- 2026-11-05
Source: DVSA anonymised MOT test data (2023–2025), OGL v3.0.
Top part to budget for
Coil Spring
Usually a DIY or independent-garage job.
Does mileage affect the G-Class MOT pass rate?
Pass rate by odometer reading. Bar lengths start at 76% so small gaps stay visible.
Fuel type and reliability
Pass rate by fuel type. Petrol is the most common here (53% of tests).
Regional pass rates for the G-Class
| Region | Tests | Pass rate |
|---|---|---|
| South East | 114 | 86.8% |
| London | 69 | 87.0% |
| North West | 43 | 83.7% |
| East of England | 35 | 88.6% |
| Yorkshire | 30 | 96.7% |
| West Midlands | 23 | 82.6% |
| South West | 19 | 78.9% |
| East Midlands | 16 | 93.8% |
Regions come from the postcode area recorded at the test station. Areas on region borders are assigned to the region with the majority of their population.
What fails a 2014 G-Class
Everything a tester recorded on this vehicle, grouped into the inspection sections that produced it. The notch on each bar is the national share, so you can see at a glance whether this car is unusual or just ordinary.
A test can record several items, so these percentages do not add up to 100%. The exact strings, with prices, are in the full DVSA record at the bottom of this page.
Before your test
Three checks worth doing on a 2014 G-Class
These are not generic tips — they are the faults recorded most often on this exact model, rewritten as things you can check yourself. All three take about ten minutes and cost nothing.
-
Check the coil springs 2.6% of tests
“coil spring fractured or broken”
Look up inside each wheel arch with a torch, all the way round the spring. A snapped spring usually breaks at the very bottom coil, where a quick glance will not reach.
-
Check the exhaust and emissions 1.3% of tests
“catalyst emissions Lambda reading after 2nd fast idle outside specified limits”
Listen for a blow at idle and have someone rev it gently. Then look at the tailpipe smoke: blue is oil, white when warm is coolant, black is over-fuelling. Any of those and the emissions test is the least of it.
-
Check the lights 1.3% of tests
“headlamp aim too low”
Switch everything on and walk round the car: both headlamps on dip and main, every indicator, both brake lights, reverse, fog and the two number-plate lamps. A bulb is a few pounds and a five-minute job.
Shares are the proportion of tests on this vehicle that recorded the item, so they overlap: one test can record several.
What it costs to get a 2014 G-Class through its MOT
Across the 10 items that are recorded most often on this model, the average repair comes to £25–£77 — and 34% of those repairs are parts that cost under £30.
- Average repair across the 10 common items
- £25–£77
- Cheapest common item: malfunction indicator lamp inoperative or…
- £3–£12
- Dearest common item: catalyst emissions lambda reading after 2nd…
- £60–£250
- Common items a careful owner can do at home
- 70%
- Repairs that still cost under £30
- 34%
Estimates from typical UK parts prices, weighted by how often each item appears in 380 MOT tests on this vehicle. They exclude diagnostics, retest fees and garage labour where the part is a DIY fit, and they are not figures from the DVSA dataset. Older and higher-mileage examples cost more than the average. How these estimates are built → · All MOT repair costs → · Cheapest cars to put through a test →
Every year of the G-Class, side by side
10 model years on record, from 2011 to 2020. Across them the pass rate runs from 83.5% to 96.2% — a spread of 12.7 points. The bar under each year is the item that failed it most often.
- 2011 88.6% windscreen damaged but not…
- 2012 84.5% malfunction indicator lamp…
- 2013 89.8% coil spring fractured or broken
- 2014 86.6%coil spring fractured or broken
- 2015 83.5% windscreen damaged but not…
- 2016 88.1% coil spring fractured or broken
- 2017 87.3% windscreen damaged but not…
- 2018 90.0% has a cut in excess of the…
- 2019 90.9% windscreen damaged but not…
- 2020 96.2% door condition cannot be opened…
Colour is the pass rate on a fixed scale, so a block means the same thing on any model. Each year links to its own page with the full fault breakdown.
Compare the 2014 Mercedes-Benz G-Class with another year
The raw pass rate mostly measures age. The year comparison adds the like-for-like figure, the mileage bands and the repair bill.
Other 2014 cars with a similar record
- Mitsubishi Mirage 86.6%
- BMW 730 86.6%
- BMW 428 86.5%
- BMW I3 86.5%
- Toyota RAV4 86.4%
- Toyota Estima 86.4%
Closest pass rates among 2014 cars with at least 2,000 tests, so a small sample cannot flatter itself into the list. See the full rankings: best and worst MOT pass rates.
The full DVSA record for the 2014 Mercedes-Benz G-Class 10 failure items · 6 advisories · 10 inspection categories · mileage brackets · all of it in the page, none of it above the fold
Every inspection category
Shares of the 363 individual items recorded on this vehicle, and the same share across all cars nationally. A single test can record several items, so a row is not a percentage of tests.
| Category | Items | This car | Nationally | Difference |
|---|---|---|---|---|
| Brakes | 89 | 24.40% | 20.89% | +3.51 |
| Noise, emissions and leaks | 58 | 15.90% | 5.52% | +10.38 |
| Tyres | 54 | 14.80% | 19.76% | −4.96 |
| Lamps, reflectors and electrical equipment | 45 | 12.30% | 12.21% | +0.09 |
| Suspension | 37 | 10.10% | 20.98% | −10.88 |
| Body, chassis, structure | 23 | 6.30% | 5.57% | +0.73 |
| Steering | 21 | 5.80% | 2.57% | +3.23 |
| Non-component advisories | 19 | 5.20% | 4.18% | +1.02 |
| Visibility | 15 | 4.10% | 4.97% | −0.87 |
| Identification of the vehicle | 2 | 0.50% | 1.76% | −1.26 |
The exact failure items, in the tester's words
| Recorded item | Severity | Tests | Est. cost |
|---|---|---|---|
| Coil spring fractured or broken Suspension | Major | 2.6% | £25–65 |
| Catalyst emissions Lambda reading after 2nd fast idle outside specified limits Noise, emissions and leaks | Major | 1.3% | £60–250 |
| Headlamp aim too low Lamps, reflectors and electrical equipment | Rectified | 1.3% | £30–80 |
| Malfunction indicator lamp inoperative or indicates a malfunction Noise, emissions and leaks | Major | 1.1% | £3–12 |
| Wipers blade defective Visibility | Minor | 1.1% | £8–22 |
| Wipers does not clear the windscreen effectively Visibility | Major | 1.1% | £8–22 |
| Ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt Steering | Major | 0.79% | £18–45 |
| Brake discs significantly and obviously worn Brakes | Major | 0.79% | £45–110 |
| Exhaust system system insecure Body, chassis, structure | Major | 0.79% | £45–120 |
| Individual direction indicators with a multiple light source up to 1/2 not functioning Lamps, reflectors and electrical equipment | Minor | 0.79% | £3–12 |
Severity is as recorded: Major and Dangerous fail the test outright; Minor and Advisory do not. Costs are estimates from typical UK parts prices — see how they are built.
What testers noted without failing the car
Advisories are the early warnings — the same parts a year or two before they fail. Reading them is how you tell a car that has been maintained from one that has been patched.
| Recorded item | Severity | Tests | Est. cost |
|---|---|---|---|
| Engine oil leaks leaking excessively from engine Noise, emissions and leaks | Advisory | 7.9% | £200–700 |
| Brake discs in such a condition that it is seriously weakened Brakes | Advisory | 6.6% | £45–110 |
| Has a tear, caused by separation or partial failure of its structure Tyres | Advisory | 6.3% | £45–95 |
| Tread depth below requirements of 1.6mm Tyres | Advisory | 5.0% | £45–95 |
| Brake pads less than 1.5 mm thick Brakes | Advisory | 4.7% | £18–45 |
| Brake discs significantly and obviously worn Brakes | Advisory | 2.9% | £45–110 |
Pass rate by mileage
| Mileage | Tests | Pass rate | Median odometer |
|---|---|---|---|
| 0-30k | 52 | 92.3% | 21,270 mi |
| 30-60k | 182 | 84.6% | 47,172 mi |
| 60-90k | 121 | 87.6% | 70,472 mi |
| 90-120k | 25 | 84.0% | 100,449 mi |
Source: 380 recorded tests on this vehicle-year. Every row above is recomputed from the same DVSA extract as the rest of the page — see the methodology.
2014 G-Class MOT questions
What is the MOT pass rate for a 2014 Mercedes-Benz G-Class?
86.6% of the 380 2014 Mercedes-Benz G-Class tests in this dataset passed, against a national average of 80.2% for cars first used in 2014. First-attempt pass rate: 85.0%.
What are the most common MOT failures on a 2014 Mercedes-Benz G-Class?
The three most recorded items are coil spring fractured or broken (2.63%), catalyst emissions lambda reading after 2nd fast idle outside specified limits (1.32%), headlamp aim too low (1.32%). Percentages are the share of tests on this vehicle that recorded the item.
Does mileage affect the 2014 Mercedes-Benz G-Class MOT pass rate?
Yes. Cars under 30,000 miles passed 92.3% of the time, falling to 84.0% for those over 120,000 miles. The median 2014 Mercedes-Benz G-Class in this dataset had covered 54,926 mi.
Which fuel type is most reliable for a 2014 Mercedes-Benz G-Class?
Petrol: 88.5% pass rate across 200 tests. Diesel: 84.4% pass rate across 180 tests. Shares are of the tests on this vehicle that recorded each fuel type.
Does the season affect the 2014 Mercedes-Benz G-Class MOT pass rate?
Tests recorded in the winter months (October–March) passed 85.7% of the time; summer months (April–September) passed 87.6%. Brakes, tyres and lights are tested harder in bad weather, but the difference is small on most models.