Pass rate
92.1%
Above average — 1.4 pts ahead of the 90.7% that cars this age and mileage manage.
Across 191 recorded tests.
Typical repair bill £37–£122
2020 Mercedes-Benz AMG Gla MOT pass rate
- 2020
- 2 trims combined
- typical 24,139 mi
Most common fault
Tyres
49.3% of faults · 19.8% nationally
mostly tread below the limit, cuts and sidewall bulges.
Which year to buy
- Best 2020 92.1% pass · this year
- Avoid 2022 91.3% pass
Across the 3 years on record, a spread of 0.8 points. See every year →
- First-attempt pass
- 91.7%
- Typical mileage
- 24k mi
The 2020 Mercedes-Benz AMG Gla MOT pass rate is 92.1% of its MOT tests — 1.4 points ahead of what its age and mileage predict. Tyres is the biggest single reason it fails, at 49.3% of what testers record.
Check your postcode
MOT pass rates are national — type your postcode to see how Mercedes-Benz AMG Gla does in your corner of the country.
Expert verdict
Tyres: 2.5× the national share
Tyres make up 49.3% of everything recorded on the 2020 Mercedes-Benz Amg Gla, against 19.8% nationally — 29.5 points above. Check all four tyres yourself, including the inner shoulders, and look at the date stamp — a tyre can pass on tread and still be six years old.
- When it fails, it costs. Only 25% 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.
- Based on a small sample. 191 tests back this page. That is enough to publish and to index, not enough to treat the decimal places as precise — read the pattern, not the second digit.
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 AMG Gla? Get an email when these numbers change .
Every Mercedes-Benz AMG Gla first registered in 2020 is combined here — 2 trim and body variants in total — so the sample is as large as the DVSA data allows.
How does the 2020 Mercedes-Benz AMG Gla compare?
Cars of this age and mileage average 90.7%, so this figure is 1.4 points ahead of what its age and mileage predict. On a first attempt, before any retests, the figure drops to 91.7%. The median 2020 Mercedes-Benz AMG Gla in this dataset had covered 24,139 mi.
Pass rates also shift with the test month: tests recorded October–March passed 88.6% of the time, April–September 94.6%.
The single most recorded failure item is "Has a bulge, caused by separation or partial failure of its structure", noted on 1.05% of tests.
- 191 recorded tests behind this page.
- 92.1% overall pass rate, 91.7% on a first attempt.
- Across every year of the Mercedes-Benz AMG Gla, the average is 91.9% — best year 2020 (92.1%), worst 2022 (91.3%).
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
- 191
- Typical mileage (median)
- 24,139 mi
- Make and model
- Mercedes-Benz AMG Gla
- Updated
- 2026-11-05
Source: DVSA anonymised MOT test data (2023–2025), OGL v3.0.
Top part to budget for
Tyres
Usually a DIY or independent-garage job.
Does mileage affect the AMG Gla MOT pass rate?
Pass rate by odometer reading. Bar lengths start at 67% so small gaps stay visible.
Regional pass rates for the AMG Gla
| Region | Tests | Pass rate |
|---|---|---|
| South East | 53 | 94.3% |
| East of England | 41 | 90.2% |
| South West | 19 | 84.2% |
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 2020 AMG Gla
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 2020 AMG Gla
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 wipers and washers 1.1% of tests
“wipers does not clear the windscreen effectively”
Run the wipers with the screen wet: they should clear it in one sweep without smearing or juddering. Top the washer bottle up and check both jets hit the screen.
-
Check the exhaust and emissions 0.5% 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 0.5% of tests
“daytime running lamps with a multiple light source up to 1/2 not functioning”
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 2020 AMG Gla through its MOT
Across the 10 items that are recorded most often on this model, the average repair comes to £37–£122 — and 25% of those repairs are parts that cost under £30.
- Average repair across the 10 common items
- £37–£122
- Cheapest common item: daytime running lamps with a multiple light…
- £3–£15
- Dearest common item: catalyst emissions lambda reading after 2nd…
- £60–£250
- Common items a careful owner can do at home
- 60%
- Repairs that still cost under £30
- 25%
Estimates from typical UK parts prices, weighted by how often each item appears in 191 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 AMG Gla, side by side
3 model years on record, from 2020 to 2022. Across them the pass rate runs from 91.3% to 92.1% — a spread of 0.8 points. The bar under each year is the item that failed it most often.
- 2020 92.1%has a bulge, caused by separation…
- 2021 92.0% has a cut in excess of the…
- 2022 91.3% has a cut in excess of the…
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 2020 Mercedes-Benz AMG Gla 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 2020 cars with a similar record
- Volkswagen Polo 92.1%
- Volvo XC40 92.1%
- Toyota Prius 92.1%
- SEAT Ateca 92.1%
- MINI John COOPER Works 92.1%
- Nissan Qashqai N-Tec 92.1%
Closest pass rates among 2020 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 2020 Mercedes-Benz AMG Gla 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 73 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 |
|---|---|---|---|---|
| Tyres | 36 | 49.30% | 19.76% | +29.54 |
| Brakes | 9 | 12.30% | 20.89% | −8.59 |
| Non-component advisories | 7 | 9.60% | 4.18% | +5.42 |
| Visibility | 6 | 8.20% | 4.97% | +3.23 |
| Lamps, reflectors and electrical equipment | 5 | 6.80% | 12.21% | −5.41 |
| Noise, emissions and leaks | 4 | 5.50% | 5.52% | −0.02 |
| Identification of the vehicle | 2 | 2.70% | 1.76% | +0.94 |
| Road Wheels | 2 | 2.70% | 0.75% | +1.95 |
| Suspension | 1 | 1.40% | 20.98% | −19.58 |
| Body, chassis, structure | 1 | 1.40% | 5.57% | −4.17 |
The exact failure items, in the tester's words
| Recorded item | Severity | Tests | Est. cost |
|---|---|---|---|
| Has a bulge, caused by separation or partial failure of its structure Tyres | Major | 1.1% | £45–95 |
| Wipers does not clear the windscreen effectively Visibility | Major | 1.1% | £8–22 |
| Catalyst emissions Lambda reading after 2nd fast idle outside specified limits Noise, emissions and leaks | Major | 0.52% | £60–250 |
| Catalyst emissions Lambda reading after 2nd fast idle outside specified limits Noise, emissions and leaks | Rectified | 0.52% | £60–250 |
| Catalyst emissions carbon monoxide content after 2nd fast idle exceeds manufacturer's specified limits Noise, emissions and leaks | Major | 0.52% | £60–250 |
| Catalyst emissions carbon monoxide content at idle exceeds manufacturer's specified limits Noise, emissions and leaks | Major | 0.52% | £60–250 |
| Daytime running lamps with a multiple light source up to 1/2 not functioning Lamps, reflectors and electrical equipment | Minor | 0.52% | £3–15 |
| Flexible brake hoses slightly twisted Brakes | Minor | 0.52% | £25–70 |
| Fractured Road Wheels | Major | 0.52% | £20–55 |
| Has a cut in excess of the requirements deep enough to reach the ply or cords Tyres | Major | 0.52% | £45–95 |
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 |
|---|---|---|---|
| Tread depth below requirements of 1.6mm Tyres | Advisory | 8.9% | £45–95 |
| Brake pads less than 1.5 mm thick Brakes | Advisory | 3.7% | £18–45 |
| Has a tear, caused by separation or partial failure of its structure Tyres | Advisory | 3.7% | £45–95 |
| Non-component advisories Child Seat fitted not allowing full inspection of adult belt Non-component advisories | Advisory | 2.1% | £20–80 |
| Has a bulge, caused by separation or partial failure of its structure Tyres | Advisory | 1.6% | £45–95 |
| Non-component advisories Nail in tyre Non-component advisories | Advisory | 1.6% | £45–95 |
Pass rate by mileage
| Mileage | Tests | Pass rate | Median odometer |
|---|---|---|---|
| 0-30k | 120 | 93.3% | 19,198 mi |
| 30-60k | 67 | 91.0% | 40,021 mi |
| 60-90k | 4 | 75.0% | 67,069 mi |
Source: 191 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.
2020 AMG Gla MOT questions
What is the MOT pass rate for a 2020 Mercedes-Benz AMG Gla?
92.1% of the 191 2020 Mercedes-Benz AMG Gla tests in this dataset passed, against a national average of 90.7% for cars first used in 2020. First-attempt pass rate: 91.7%.
What are the most common MOT failures on a 2020 Mercedes-Benz AMG Gla?
The three most recorded items are has a bulge, caused by separation or partial failure of its structure (1.05%), wipers does not clear the windscreen effectively (1.05%), catalyst emissions lambda reading after 2nd fast idle outside specified limits (0.52%). Percentages are the share of tests on this vehicle that recorded the item.
Does mileage affect the 2020 Mercedes-Benz AMG Gla MOT pass rate?
Yes. Cars under 30,000 miles passed 93.3% of the time, falling to 75.0% for those over 120,000 miles. The median 2020 Mercedes-Benz AMG Gla in this dataset had covered 24,139 mi.
Does the season affect the 2020 Mercedes-Benz AMG Gla MOT pass rate?
Tests recorded in the winter months (October–March) passed 88.6% of the time; summer months (April–September) passed 94.6%. Brakes, tyres and lights are tested harder in bad weather, but the difference is small on most models.