73 AUTO

MOT performance

BMW 3 Series MOT pass rate and common failures

Across 1,007,360 MOT tests of the BMW 3 Series in 2023–2024, 74.9% passed first time. Allowing for age, mileage and fuel, BMW 3 Seriess failed 23% less often than comparable cars. The most common failure item was “tread depth: tread depth below requirements of 1.6mm”, on 2.73% of tests.

1,007,360 MOT tests on 536,354 vehicles, 2023–2024 · Source: DVSA (Open Government Licence) · Analysis: 73 Auto

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At a glance

BMW 3 Series MOT results at a glance
FigureValueBasis
First-time pass rate74.9%±0.1 pts (95%), n = 1,007,360
Failures vs similar cars0.77×same age, mileage and fuel = 1.00
Tests with a dangerous defect8.6%n = 1,007,360
Average age at test11.1 yearsn = 1,007,360
Median mileage at test91,398 milesn = 1,007,360
Vehicles tested536,3542023–2024

Where BMW 3 Seriess fail

The share of MOT tests that failed on each area, and how that compares with cars of the same age, mileage and fuel. Areas where the difference is large and clear link to their own page.

BMW 3 Series MOT failures by area
AreaTests failed on itvs similar cars
Lights, reflectors and electrical9.0%-34%
Tyres7.6%+8%
Suspension6.6%-41%
Brakes6.3%-25%
Driver's view of the road3.6%-32%
Noise, emissions and leaks2.7%-33%
Body, chassis and structure1.3%-72%
Seat belts and airbags1.1%-21%
Road wheels1.1%+127%
Steering0.6%-74%
Registration plates and VIN0.5%+4%
Speedometer and driving controls0.0%-27%

BMW 3 Series MOT pass rate by fuel: diesel vs petrol vs hybrid

Raw pass rates partly reflect how old each fuel's cars are; the adjusted column compares each with cars of the same age, mileage and fuel. Fuels that differ materially from the model as a whole have their own page.

BMW 3 Series MOT results by fuel
FuelTestsAverage ageFirst-time passvs similar cars
Diesel584,35910.4 yrs74.3%-23%
Petrol352,40813.7 yrs73.8%-26%
Hybrid70,5623.7 yrs85.0%+9%

BMW 3 Series MOT pass rate by generation

Generations by first-registration date against 73 Auto's catalogue (cars registered within three months of a changeover left out).

BMW 3 Series MOT results by generation
GenerationTestsAverage ageFirst-time passvs similar cars
F30 (2012–2019)419,6967.9 yrs80.1%-28%
G20 (2019 on)106,7922.9 yrs85.9%+4%

Most common failure items

Most common BMW 3 Series MOT failure items
ItemAreaShare of tests
Tread depth: tread depth below requirements of 1.6mmTyres2.73%
Shock absorbers: has a serious fluid leakSuspension2.52%
Position lamp: not workingLights, reflectors and electrical2.36%
Condition: has ply or cords exposedTyres1.88%
Rbt (sp): efficiency below requirementsBrakes1.66%
Washers: provides insufficient washer liquidDriver's view of the road1.62%
Condition: has a cut in excess of the requirements deep enough to reach the ply or cordsTyres1.51%
Brake pads: less than 1.5 mm thickBrakes1.47%
Headlamp aim: too lowLights, reflectors and electrical1.35%
Headlamp: not working on dipped beamLights, reflectors and electrical1.26%

Most common advisories

Advisories are items the tester expects to need attention soon; they don't fail the test.

Most common BMW 3 Series MOT advisories
ItemAreaShare of tests
Tread depth: tread depth below requirements of 1.6mmTyres17.85%
Brake pads: less than 1.5 mm thickBrakes7.56%
Brake discs: in such a condition that it is seriously weakenedBrakes6.70%
Engine oil leaks: leaking excessively from engineNoise, emissions and leaks6.33%
Shock absorbers: has a serious fluid leakSuspension5.72%

Pass rate by age

BMW 3 Series MOT pass rate by age at test
Age at test (years)TestsFirst-time pass rateFailures vs similar cars
3-494,48087.2%-12%
5-6108,76886.3%-30%
7-8126,77982.4%-32%
9-10133,50775.6%-26%
11-12124,26969.8%-21%
13-15153,07867.0%-23%
16+228,21266.3%-22%

Pass rate by registration year

BMW 3 Series MOT pass rate by registration year
RegisteredTestsFirst-time pass rateFailures vs similar cars
202252190.0%0.81×
202127,02485.4%1.16×
202044,88085.4%1.11×
201952,29787.1%0.84×
201849,77587.0%0.73×
201762,06485.8%0.69×
201663,92284.2%0.66×
201563,79781.8%0.66×
201464,75477.3%0.72×
201369,77574.5%0.75×
201267,29169.7%0.82×
201158,11169.5%0.77×
201053,98367.6%0.78×
200948,14266.3%0.79×
200847,97567.2%0.74×
200755,97567.2%0.73×
200641,62266.3%0.74×
200526,82164.9%0.77×
200421,44064.1%0.80×
200322,52664.9%0.78×
200217,22165.0%0.79×
200111,34663.8%0.85×
20006,24664.6%0.86×
19995,79664.9%0.94×
19984,51467.8%0.95×
19973,41367.2%1.04×
19962,42866.7%1.05×
19951,65369.2%0.98×
19941,04665.5%1.08×
19931,02271.5%0.90×
19921,01275.4%0.78×
19911,53077.4%0.71×
19902,60876.8%0.72×
19891,91978.5%0.67×
19881,19677.6%0.70×
198773378.6%0.67×
198640974.3%0.83×

Years with fewer tests are shown for completeness; only years with enough tests have their own page.

Compared with similar models

What a BMW 3 Series costs to own

73 Auto's worked ownership-cost examples for this model:

Check a specific BMW 3 Series

Enter a UK registration to see that car's own MOT history and what it is likely to cost to own. Your first check is free and shows the vehicle summary and its headline ownership cost. The category-by-category breakdown is part of a paid check.

UK number plate or 17-character VIN

About this data. These are MOT test results, not a measure of mechanical reliability: a car's MOT outcome reflects its condition on the day, which depends on how it has been maintained and driven as well as how it was built. Figures cover class 4 vehicles (cars and light vans), normal tests only (retests excluded), outcomes pass, fail and pass after rectification at the station; vehicles at least 2.5 years old at test. Tests from 2023-01-01 to 2024-12-30. “Compared with similar cars” means compared with the national rate for cars of the same age, mileage band and fuel. Contains public sector information licensed under the Open Government Licence v3.0. Makes and models are matched to 73 Auto's vehicle catalogue; tests that can't be matched are left out rather than guessed. See how the MOT figures are produced.