Audi Q4 — MOT statistics 2024

The Audi Q4 failed 12.93% of 3,938 first MOT attempts in 2024 ("first-time", excluding retests). Adjusted for the age of the fleet, its initial-failure ratio is 106.5 (100 = expected for its age profile). This car is too close to call — statistically indistinguishable from normal for its age. Small sample — treat with care. But this fleet is driven far harder than average: matched on annual mileage as well as age, using 2019-2024 test chains rather than 2024 alone, the figure is 94.4, on the other side of normal. Both numbers below.

Age-adjusted peer: Mercedes-Benz CLC (index 106.3) — the two published results are 0.2 index points apart.

Audi Q4 common problems: what actually fails the MOT

Tyres stand out at 15.3 per 100 tests, against 10.4 per 100 tests across UK electric vehicles of the same ages.

higher bar = fails more oftenrate per 100 tests

family vs national — matched to UK electric vehicles of the same ages — top component groups, per 100 tests. Legend: This family · National avg. Combined labels: family / national average. A gap here reflects how these vehicles are driven, used and maintained as well as how they were built — an MOT defect is a test outcome, not a breakdown.

Named defects ranked by how much more often they appear than the national average — not by raw rate.

Audi Q4 MOT advisories: what gets flagged

Tyres are highest at 51.0 per 100 tests; Brakes are lowest at 1.8 per 100 tests — the gap is 49.2 per 100 tests.

higher bar = flagged more oftenadvisory items per 100 initial tests

Advisories are wear the tester noted but didn't fail — what will need money soon.

Tyres, brakes and suspension: Audi Q4 against cars of the same age

Failing items per 100 initial tests, 2019-2024. The comparison group is every petrol or diesel car tested at the same age, so weight and drivetrain show up rather than fleet age.

Adjusted for how much these are actually driven

The headline index adjusts for the fleet's age. Wear, though, follows mileage: a three-year-old taxi and a three-year-old garage queen sit in the same age band. These two rows compare every car with vehicles of the same age, and then with vehicles of the same age and the same annual mileage, 2019-2024, on 3,997 tests. Both stand on the six-year corpus so they are measured on identical data — compare them with each other, not with the headline index above, which is measured on 2024 alone.

This is the rare case where usage changes the answer, not just the number: once you compare these against vehicles driven as little, the car moves from one side of normal to the other. Read the mileage-matched figure, not the headline one. One limit to keep in mind: mileage is partly a result of how often a car breaks down — one that spends weeks in the workshop covers fewer miles — so the mileage-matched figure can understate a real weakness. Tests with no usable odometer reading are left out of it.

How the Audi Q4 compares with cars of its own age and size

Not against the whole fleet — against cars of the same size class tested at the same age, 2019-2024.

Raw first-time failure rates within each age, so fleet age cannot flatter either side. A positive difference means this model fails more often than its own class at that age.

How does the Audi Q4 perform as it gets older?

The Q4 at age 3 stands out at 13.1%, against 12.4% for all vehicles of the same age.

higher = larger sharecompare shares in percentage points

Chart axes: car age, years · failure-rate scale 0–14%.

Takeaway: solid line: this family; dashed: all cars.

How dangerous are Audi Q4 MOT failures?

Major defects are well below the reference at 9.7 per 100 tests, against 52.8 per 100 tests nationally.

higher bar = fails more oftenrate per 100 tests

Chart values: Minor 2.5 · Major 9.7 · Dangerous 8.7.

Per 100 tests on this family. National average: Minor 14.2 · Major 52.8 · Dangerous 11.2 per 100.

Does the month of an Audi Q4 MOT matter?

Aug is highest at 16.0%; Apr is lowest at 2.1% — the gap is 13.9 percentage points.

higher = larger sharecompare shares in percentage points

Chart scale: 1%–33%.

bars: Audi Q4 · dashed: all class-4 cars

Takeaway: the spread between best and worst month is 13.9 percentage points — noticeable seasonality. Seasonality partly reflects registration-date clustering, not weather.

Before reading the shape: most of it is not about cars. Britain changes its registration plates twice a year, and 18.9% of these cars were first registered in March with another17.1% in September — 36% in two months against the 17% an even spread would give. An MOT falls due three years after first registration, so the buying calendar becomes the testing calendar. That shapes how many cars are tested each month — not how often they fail: the busiest months here are not the worst ones, so read the failure line on its own and the volume behind it separately.

Audi Q4 average mileage by age

At age 3, the middle half of Q4s runs from 20,244 miles to 36,158 miles, against 27,508 miles as the median.

further right = more milesmedian is the typical car; band is p25–p75

Does high mileage mean more Audi Q4 MOT failures at the same age?

Within the same age group, split by odometer (2024 MOTs), so this separates wear from age: at ages 3–5, 12.5% of those with under 40,000 miles failed first time versus 15.6% of those with 40,000–70,000 miles.No clear mileage gap inside this age group, among cars still being tested.

line: median · band: middle half of the fleet (p25–p75)

A typical 3-year-old Q4 has ~27,508 miles on the clock. Much more — ask why; much less — check for gaps in the MOT history.

Where in Britain the Audi Q4 fails its MOT most

Leicester area is highest at 23.3%; Birmingham area is lowest at 19.4% — the gap is 3.9 percentage points.

higher = larger sharecompare shares in percentage points

Every dot is a postcode area — size = how many were tested there, colour = share failing. These figures are not age-adjusted: coastal and rural areas often run older fleets and salted roads, so higher raw fail rates do not automatically mean a worse local stock of this model.

Map labels: Scotland · N. England · Wales · London · S. West.

Audi Q4 faults that come together

Tyres + Visibility stand out at 1.73×, against 1.00× if the faults were independent.

above 1.0× = more than expectedbelow 1.0× = less

Defects in «Tyres» and «Visibility» appear together 1.73× more often than chance (20 co-occurrences in the same test; 66 pairs compared).

Lift = how many times more often both groups appear on the same test than if independent. A pair is listed from 5 tests with both faults; the lift is shown from 20, and called above chance only when its 95% interval excludes 1 (see rough estimates).

Audi Q4 rust problems: where they corrode

Salt-belt exposure is well below the reference at 30th percentile, against 50th percentile as the middle of published models.

higher = larger sharecompare shares in percentage points

This Audi Q4 has too few tests to judge for corrosion once age is held constant, and its owners live in areas that are gentler than most for the models we publish.

Corrosion is the one failure mode that is as much about geography as about the car. We keep the two apart on purpose: a model can look rusty simply because it is popular in Scotland, and a model can look clean simply because it is bought in Surrey. Blending them into a single score would hide which of the two is doing the work.

Exposure is this model's tests weighted by an area corrosion index built from frost days, salt load and distance to the coast — the composite validated at r = 0.42 against corrosion defects we actually record. It is published as a rank, not a raw score, because every mainstream model skews towards low-corrosion areas for the simple reason that most of Britain's cars are in the south. Susceptibility is standardised to the national age profile, so an old fleet does not get labelled a rusty model.

What will fail next on an Audi Q4?

Tyres after a passed at age <3 stand out at 4.6%.

higher = more likelypercentage is the observed transition probability

The same chains, cut differently: given a car's age and how its last test went, which component most often causes trouble at the following one.

The pattern that repeats across every family: a failure at one test roughly doubles the chance of a failure on the same component at the next one, and an advisory sits about half-way between a clean pass and a failure. Age bands in years; probabilities are per car, not per defect item.

Audi Q4 safety recalls and how to check yours

DVSA recall campaigns stand out at 2.

bigger number = more recorded casescompare like-for-like scope, not sample size alone

DVSA lists 2 safety recall campaigns for the Audi Q4, covering roughly 17,404 vehicles in total. A recall is the manufacturer fixing a fault for free, so an open recall on your car costs nothing to clear.

Counter-intuitive, and measured on our own data: across the 25 families published here, more recalls go with a lower MOT Risk Index (r = −0.52). Heavily recalled models are not worse cars in the test bay — an active manufacturer removes the fault before it becomes an MOT failure.

Check whether a specific car has an outstanding recall — free, by registration — at DVSA's recall service. Source: DVSA vehicle safety recalls (check-vehicle-recalls.service.gov.uk), OGL.

Audi Q4 MOT: quick answers

Audi Q4 MOT Risk Index stands out at 106.5, against 100 for a car with the same age profile.

below 100 is betterabove 100 is worse100 = normal for this model at that age

What is the Audi Q4 first-time MOT pass rate?

87.07% of first attempts passed in 2024 (3,938 tests). This is the first-time figure: retests after repair are excluded. Basis: first-time, excluding retests.

Why does this number differ from other sites?

Other sites often report a pass rate that includes retests or counts all attempts. Our 12.93% figure is the first-time initial failure rate, using 3,938 primary tests as the denominator (first-time, excluding retests). The age-adjusted MOT initial-failure ratio 106.5 is shown separately because raw rates compare fleet age as well as cars.

Compare the Audi Q4 with other cars

Kia Rio is highest at 106.8; Mercedes-Benz CLC is lowest at 106.3 — the gap is 0.5 points.

below 100 is betterabove 100 is worse100 = normal for this model at that age

Same brand

All Audi MOT statisticsAudi A2 MOT statsAudi A1 MOT stats

Similar risk

Volkswagen Caravelle (index 106.4)Mercedes-Benz CLC (index 106.3)Kia Rio (index 106.8)

Same size class

how BMW M5 compareshow Honda Fit compareshow Audi R8 compares

By area

Audi Q4 MOT failure rate by postcode area

By failure group

Audi Q4 tyres failuresAudi Q4 visibility failures