Common problems

Rover Mini common problems

What MOT testers find on the Rover Mini: the parts that fail or get advisories most often at each age, against all cars of the same age. From 10,824 DVSA MOT tests taken 2022 to 2025.

MOT data updated 28 September 2026

At 25 years, the most tested age

Lights and electrics fails per 100 MOTs (n=3,620)11.6

All cars at 25 years (n=313,355)16.3

Suspension advisories and minor defects per 100 MOTs (n=3,620)21.6

All cars, same age (n=313,355)31.5

What stands out

Exhaust, emissions and leaks fails show up on 8.9 of every 100 MOTs of a Rover Mini at 25 years old (n=3,620), against 7.1 for all cars of that age (n=313,355).
Lights and electrics fails are less common: 11.6 per 100 MOTs against 16.3 for all cars at the same age.
The fail item testers record most often at 25 years: steering rack: gaiter missing or no longer prevents the ingress of dirt, on 4.4 per 100 MOTs (all cars 1.1).
The most common advisory or minor defect: engine oil leaks: leak, but not excessive, on 10.6 per 100 MOTs.

Problems by part at 25 years

How many of every 100 MOTs found a fail, or an advisory or minor defect, in each area. A test with faults in two areas counts in both.

Rover Mini at 25 years (n=3,620) against all cars at 25 years (n=313,355). Per 100 MOTs.
Area	Fails	All cars	Advisories	All cars
Lights and electrics	11.6	16.3	3.4	11.1
Suspension	9.6	12.8	21.6	31.5
Exhaust, emissions and leaks	8.9	7.1	11.2	16.6
Brakes	8.0	11.8	8.7	29.2
Windscreen, wipers and mirrors	6.5	6.7	2.0	5.6
Body and structure	5.5	9.3	8.3	16.8
Steering	5.2	3.7	4.5	7.0
Seat belts and airbags	1.7	3.3	1.7	2.1
Tyres	1.5	4.1	8.9	19.3
Number plates and VIN	0.7	0.8	1.3	5.6
Road wheels	0.1	0.3	0.1	0.6

What testers fail most on the Mini at 25 years

Fail items on the Rover Mini at 25 years (n=3,620), per 100 MOTs, with all cars at the same age (n=313,355).
Item	Area	Per 100 MOTs	All cars	Typical repair (estimate)
Steering rack: gaiter missing or no longer prevents the ingress of dirt	Steering	4.4	1.1	£63 to £147 per side (rough guide)
Catalyst emissions: Lambda reading after 2nd fast idle outside specified limits	Exhaust, emissions and leaks	3.9	2.2
Catalyst emissions: carbon monoxide content after 2nd fast idle exceeds manufacturer's specified limits	Exhaust, emissions and leaks	2.7	1.7
Service brake imbalance: across an axle	Brakes	2.7	1.6
Washers: provides insufficient washer liquid	Windscreen, wipers and mirrors	2.7	1.8	£2 to £14 per car (rough guide)
Handbrake too weak	Brakes	2.2	2.3
Headlight aimed too high	Lights and electrics	2.2	1.3	£16 to £39 per car (rough guide)
Washers: not working	Windscreen, wipers and mirrors	2.0	1.3	£28 to £118 per car (rough guide)
Suspension ball joint worn	Suspension	1.9	1.4	£75 to £237 per side (rough guide)
Service brake performance: efficiency below requirements	Brakes	1.7	1.3

Early warnings: advisories and minor defects at 25 years

Advisories and minor defects are recorded, but the car still passes. Across all cars, a part with an advisory or minor defect failed at the next MOT 5.5 times in 100 (n=88,666,940 pairs of consecutive MOTs), against 0.3 times in 100 when the same part had none (n=12,936,860,350).

Advisories and minor defects on the Rover Mini at 25 years (n=3,620), per 100 MOTs, with all cars at the same age (n=313,355).
Item	Area	Per 100 MOTs	All cars	If it needs replacing (estimate)
Engine oil leaks: leak, but not excessive	Exhaust, emissions and leaks	10.6	14.9
Wheel bearings: has slight play	Suspension	6.9	4.3	£103 to £276 per wheel (rough guide)
Suspension arm ball joint: ball joint has slight play	Suspension	5.6	2.8	£75 to £237 per side (rough guide)
Tyre condition: slightly damaged/cracking or perishing	Tyres	4.4	9.1	£88 to £145 per tyre
Tread depth: worn close to legal limit/worn on edge	Tyres	4.2	10.1	£88 to £145 per tyre
Rigid brake pipes: corroded, covered in grease or other material	Brakes	3.7	14.1	£137 to £392 per car (rough guide)
Exhaust system: has a minor leak of exhaust gases	Body and structure	3.1	5.3	£182 to £263 per section
Sub-frame: corroded but not seriously weakened	Suspension	3.0	2.9
Suspension arm pins and bushes: pin or bush worn but not resulting in excessive movement	Suspension	2.8	4.9	£92 to £237 per arm (rough guide)
Steering rack: gaiter damaged or deteriorated, but preventing the ingress of dirt	Steering	2.6	0.6

Repair estimates are a guide for an independent garage: labour at the national median local garage rate (median £78 an hour from 65 garages, ONS price quotes) times estimated labour hours, plus a parts band. Labour hours and most parts bands are estimates, not quotes, and prices vary by model, engine and region. A warning light fault shows the cost of the diagnosis only.

How problems change with age

Fails per 100 MOTs in the three most common areas at 25 years. Ages with fewer than 1,000 tests are not shown.
Age	Tests (n)	Lights and electrics	Suspension	Exhaust, emissions and leaks
22 years	1,605	12.6	8.5	8.5
23 years	2,365	11.8	7.1	8.2
24 years	3,234	11.3	9.1	8.3
25 years	3,620	11.6	9.6	8.9

Mileage

At 25 years, Rover Mini cars showing 30,000 to 60,000 miles failed 29.1% of MOTs (n=1,456); the band that failed most, 60,000 to 90,000 miles, failed 33.2% (n=1,079). For pass and fail rates by age, see MOT fail rates by model.

What to check on a viewing

On the Rover Mini, testers most often record steering rack: gaiter missing or no longer prevents the ingress of dirt; catalyst emissions: Lambda reading after 2nd fast idle outside specified limits; catalyst emissions: carbon monoxide content after 2nd fast idle exceeds manufacturer's specified limits. Look at these first, then the areas below.

Lights and electrics

With someone outside, try every light: dipped and main beam, indicators, brake lights, fog lights and number plate lamps.
Check that the warning lights come on with the ignition and go out once the engine runs.
Look for misted, cracked or yellowed headlamp lenses.

Suspension

Listen for knocks or clonks over speed bumps and rough roads on the test drive.
Push down hard on each corner: the car should settle at once rather than keep bouncing.
Look behind the wheels for broken or heavily rusted coil springs and split rubber bushes.
Check that the car sits level and that no tyre is worn on one edge only.

Exhaust, emissions and leaks

Start the engine from cold if you can and watch the exhaust for blue or black smoke.
Check that the engine warning light goes out after starting and stays out on the test drive.
Look under the car and around the engine for oil or fluid leaks, and listen for a blowing exhaust.

Ask for the car's MOT history and service record: advisories that repeat from one year to the next show what has been left. GOV.UK MOT history.

Questions

What are the most common problems on the Rover Mini?

At 25 years, the age with the most MOT tests (3,620), the fail items testers record most often on the Rover Mini are steering rack: gaiter missing or no longer prevents the ingress of dirt (4.4 per 100 MOTs), catalyst emissions: Lambda reading after 2nd fast idle outside specified limits (3.9 per 100 MOTs), catalyst emissions: carbon monoxide content after 2nd fast idle exceeds manufacturer's specified limits (2.7 per 100 MOTs). The most common advisories or minor defects are engine oil leaks: leak, but not excessive (10.6) and wheel bearings: has slight play (6.9).

Which parts of the Rover Mini fail more often than on other cars?

At 25 years: exhaust, emissions and leaks (8.9 per 100 MOTs against 7.1 for all cars); steering (5.2 per 100 MOTs against 3.7 for all cars). Compared with 313,355 MOTs of all cars the same age.

Rover Mini problems by area

Other Rover models

All Rover models · Common problems by make

Read this with care. A fail rate is not a measure of build quality. How far cars are driven, how they are used and how well owners maintain them all change it, and wear items such as tyres and brake pads are common fails. Compare a model only with cars of the same age. Methodology and limits.

The all cars figures cover all class 4 vehicles (cars and light vans) tested at the same age.

Looking at a Rover Mini?

These figures describe the model, not the car in front of you. Found one you might buy? See what the VetTheCar Buying Report covers, or use the tools that work without a registration.

See a sample report Car tools · MOT fail rates by model · Compare models by MOT record

Repair estimates: ONS consumer price quotes for local garage labour (09/2025 to 08/2026), the MOT inspection manual for defect wording, and estimated labour hours and parts bands. Not affiliated with or endorsed by ONS.

Source

Contains public sector information licensed under the Open Government Licence v3.0. Source: DVSA anonymised MOT test data, class 4 normal MOT tests, 2022 to 2025. MOT data updated 28 September 2026.

Not affiliated with or endorsed by DVSA. How we calculate these figures · Data sources