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BMW X4 reliability

A · Excellent

MOT pass rates and common problems from 103,235 MOT tests of cars first registered 2014–2022.

85.1%pass first time
+4.7 ptsvs typical car
Beats 85%of cars
103,235MOT tests

Verdict

The BMW X4 passes its MOT first time on 85.1% of tests, 4.7 points higher than a typical car of the same age and mileage (80.4%). That puts it ahead of 85% of cars on UK roads once age and mileage are taken into account.

Of its engines, the 3.0 Diesel does best (beats 88%) and the 2.0 Diesel worst (beats 83%).

Better than average on lights & electrics, visibility, suspension.

Watch these weak spots

Coil springs1.7×as often as a typical car
Number plates2.1×as often as a typical car
Wheel nuts & fixings2.0×as often as a typical car

MOT pass rate by age

First-time pass rate at each MOT by the car’s age in years.

60%70%80%90%100%3456789101188%88%87%85%83%81%80%79%80%
BMW X4Typical car, same age & mileage

Best and worst years

By year of first registration, ranked against all cars on UK roads after adjusting for age and mileage. Green = better than half of cars.

2014
Beats 91%
2015
Beats 83%
2016
Beats 81%
2017
Beats 81%
2018
Beats 89%
2019
Beats 91%
2020
Beats 81%
2021
Beats 71%
2022
Beats 76%

Engines

All years, most common first. Grades compare each car with cars of the same age and mileage (A = best 20% of cars on UK roads, E = worst 20%), so an older or higher-mileage car can grade above one with a higher pass rate.

EngineYearsTestsPass rateRankGrade
2.0 Diesel2014–202054,11484.2%Beats 83%A
3.0 Diesel2014–202036,99985.2%Beats 88%A
3.0 Petrol2019–20206,27990.0%Beats 91%A
2.0 Diesel hybrid2020–20225,84388.3%Beats 72%B

Where it fails

Each area compared with a typical car of the same age and mileage, in points of pass rate. Tap or hover an area to see what to check.

Exhaust: 0.8% of tests fail on emissions & leaks, against 1.5% for a typical car of the same age and mileage. Listen for a blowing exhaust at start-up and look underneath for oil or fluid leaks.Suspension: 2.6% of tests fail on suspension, against 3.5% for a typical car of the same age and mileage. Listen for knocks over speed bumps and push each corner down: it should settle at once.Lights: 2.7% of tests fail on lights & electrics, against 5.6% for a typical car of the same age and mileage. Walk round the car with every light on, including brake, fog and number plate lights.Tyres: 5.9% of tests fail on tyres, against 6.1% for a typical car of the same age and mileage. Check the tread on every tyre, including the inner edge, and look for cuts or bulges.Brakes: 2.2% of tests fail on brakes, against 3.8% for a typical car of the same age and mileage. Brake firmly on the test drive: the car should stop straight with no pulsing or grinding.Lights: 2.7% of tests fail on lights & electrics, against 5.6% for a typical car of the same age and mileage. Walk round the car with every light on, including brake, fog and number plate lights.Lights+2.9 ptsTyres: 5.9% of tests fail on tyres, against 6.1% for a typical car of the same age and mileage. Check the tread on every tyre, including the inner edge, and look for cuts or bulges.Tyres+0.2 ptsBrakes: 2.2% of tests fail on brakes, against 3.8% for a typical car of the same age and mileage. Brake firmly on the test drive: the car should stop straight with no pulsing or grinding.Brakes+1.7 ptsSuspension: 2.6% of tests fail on suspension, against 3.5% for a typical car of the same age and mileage. Listen for knocks over speed bumps and push each corner down: it should settle at once.Suspension+0.9 ptsExhaust: 0.8% of tests fail on emissions & leaks, against 1.5% for a typical car of the same age and mileage. Listen for a blowing exhaust at start-up and look underneath for oil or fluid leaks.Exhaust+0.6 ptsSuspension: 2.6% of tests fail on suspension, against 3.5% for a typical car of the same age and mileage. Listen for knocks over speed bumps and push each corner down: it should settle at once.Brakes: 2.2% of tests fail on brakes, against 3.8% for a typical car of the same age and mileage. Brake firmly on the test drive: the car should stop straight with no pulsing or grinding.Tyres: 5.9% of tests fail on tyres, against 6.1% for a typical car of the same age and mileage. Check the tread on every tyre, including the inner edge, and look for cuts or bulges.Lights: 2.7% of tests fail on lights & electrics, against 5.6% for a typical car of the same age and mileage. Walk round the car with every light on, including brake, fog and number plate lights.Exhaust: 0.8% of tests fail on emissions & leaks, against 1.5% for a typical car of the same age and mileage. Listen for a blowing exhaust at start-up and look underneath for oil or fluid leaks.Lights: 2.7% of tests fail on lights & electrics, against 5.6% for a typical car of the same age and mileage. Walk round the car with every light on, including brake, fog and number plate lights.Lights+2.9 ptsTyres: 5.9% of tests fail on tyres, against 6.1% for a typical car of the same age and mileage. Check the tread on every tyre, including the inner edge, and look for cuts or bulges.Tyres+0.2 ptsBrakes: 2.2% of tests fail on brakes, against 3.8% for a typical car of the same age and mileage. Brake firmly on the test drive: the car should stop straight with no pulsing or grinding.Brakes+1.7 ptsSuspension: 2.6% of tests fail on suspension, against 3.5% for a typical car of the same age and mileage. Listen for knocks over speed bumps and push each corner down: it should settle at once.Suspension+0.9 ptsExhaust: 0.8% of tests fail on emissions & leaks, against 1.5% for a typical car of the same age and mileage. Listen for a blowing exhaust at start-up and look underneath for oil or fluid leaks.Exhaust+0.6 pts
Better than typicalTypicalWorse than typical
Tyres: 5.9% of tests fail on tyres, against 6.1% for a typical car of the same age and mileage. Check the tread on every tyre, including the inner edge, and look for cuts or bulges.

Every MOT area

Share of tests failing on each area, against a typical car of the same age and mileage (black line).

Tyres
5.9% vs 6.1%
Lights & electrics
2.7% vs 5.6%
Visibility
2.7% vs 3.6%
Suspension
2.6% vs 3.5%
Brakes
2.2% vs 3.8%
Emissions & leaks
0.8% vs 1.5%
Wheels
0.4% vs 0.3%
Seat belts & airbags
0.2% vs 0.4%
Steering
0.2% vs 0.7%
Body & structure
0.2% vs 1.1%

Buying one or MOT due? Check these

  • Coil springs 1.7× typical
    Look behind each wheel for a snapped coil (often the bottom one) and listen for clunks over bumps.
  • Tyre damage & cracking
    Look for cuts, bulges and cracking on both sidewalls of every tyre.
  • Tyre tread depth
    Check every tyre, including the inner edge, has at least 3 mm of tread. Uneven wear can point to alignment or suspension problems.
  • Brake pads
    Ask when the pads were last replaced and look for a brake-wear warning on the dash.
  • Windscreen wipers
    Test the washers and wipers: a cheap fix, but a very common MOT fail.
  • Headlight aim
    Park facing a wall at night: both dipped beams should sit level and dip to the left.

Pass rate by mileage

First-time pass rate by mileage at the test.

60%70%80%90%100%10k20k30k40k50k60k70k80k90k100k110k91%88%85%81%80%78%
BMW X4Typical car

Most common MOT failures

ItemThis carTypicalvs typical
Tyre damage & cracking3.8%3.4%1.1×
Tyre tread depth2.0%2.3%0.9×
Coil springs1.9%1.1%1.7×
Brake pads1.7%2.1%0.8×
Windscreen wipers1.5%2.0%0.7×
Windscreen washers1.1%1.5%0.8×
Headlight aim1.0%2.0%0.5×
Engine warning light0.6%0.8%0.8×
Brake lights0.6%0.8%0.7×
Number plates0.5%0.2%2.1×

Specific defects found

Tester wording for the most frequent failure items, per 1,000 tests.

Defectper 1,000
A tyre seriously damaged24.0
Tyre tread depth not in accordance with the requirements19.8
A spring or spring component fractured or seriously weakened19.3
Wiper blade missing or obviously not clearing the windscreen14.9
A tyre cords visible or damaged14.5
A brake lining or pad worn below 1.5mm14.0
Windscreen washers not working or not providing sufficient fluid to clear the windscreen11.1
The aim of a headlamp is not within limits laid down in the requirements10.2
Check another car

Pick a make and model to see its MOT pass rate, best and worst years and weak spots.

Every year and engine

Tap a year to see its engines. Grades compare each car with cars of the same age and mileage (A = best 20% of cars on UK roads, E = worst 20%), so an older or higher-mileage car can grade above one with a higher pass rate.

2022 BMW X41 engine89.5% passB
EngineTestsPass rateRankGrade
2.0 Diesel hybrid1,59289.5%Beats 76%B
2021 BMW X41 engine88.2% passB
EngineTestsPass rateRankGrade
2.0 Diesel hybrid2,73088.2%Beats 71%B
2020 BMW X44 engines88.6% passA
EngineTestsPass rateRankGrade
3.0 Petrol2,22690.3%Beats 89%A
3.0 Diesel1,93888.6%Beats 83%A
2.0 Diesel hybrid1,52187.2%Beats 69%B
2.0 Diesel1,18787.5%Beats 75%B
2019 BMW X43 engines88.7% passA
EngineTestsPass rateRankGrade
2.0 Diesel9,11188.1%Beats 89%A
3.0 Diesel5,96688.9%Beats 93%A
3.0 Petrol4,05389.9%Beats 92%A
2018 BMW X42 engines87.3% passA
EngineTestsPass rateRankGrade
2.0 Diesel7,71287.6%Beats 91%A
3.0 Diesel4,19686.8%Beats 86%A
2017 BMW X42 engines85.0% passA
EngineTestsPass rateRankGrade
2.0 Diesel9,20684.4%Beats 78%B
3.0 Diesel5,43485.9%Beats 86%A
2016 BMW X42 engines83.0% passA
EngineTestsPass rateRankGrade
2.0 Diesel12,34782.7%Beats 79%B
3.0 Diesel9,01683.5%Beats 83%A
2015 BMW X42 engines81.7% passA
EngineTestsPass rateRankGrade
2.0 Diesel11,46580.8%Beats 80%B
3.0 Diesel6,96983.2%Beats 89%A
2014 BMW X42 engines81.4% passA
EngineTestsPass rateRankGrade
3.0 Diesel3,48082.4%Beats 94%A
2.0 Diesel3,08680.2%Beats 86%A

FAQ

What is the BMW X4 MOT pass rate?

85.1% of MOT tests on the BMW X4 were passed first time, based on 103,235 tests between 2018 and 2026 of cars first registered 2014–2022. A typical car of the same age and mileage passes 80.4% of the time.

Is the BMW X4 reliable?

On MOT results it rates A (excellent): it passes first time more often than a typical car of the same age and mileage and does better than 85% of cars on UK roads. MOT results cover safety and emissions items, not every kind of breakdown.

Which BMW X4 engine is best?

Across all years, the 3.0 Diesel does best: it beats 88% of cars on UK roads. The 2.0 Diesel does worst: it beats 83%.

What are the most common MOT failures on the BMW X4?

The most common failure items are tyre damage & cracking, tyre tread depth, coil springs. Compared with similar cars, coil springs comes up 1.7× as often.

How we calculate this. We use official MOT results for cars tested in Great Britain from 2018 to 2026. Each car is compared with typical cars of the same age and mileage, so old and new cars are judged fairly; “pts” are percentage points above or below them. Differences also reflect how cars are used and maintained, not only how they are built.