BMW 1 Series F20/F21 (2011-2018) reliability
BMW 1 Series F20/F21 built around 2018: about average at the MOT
BMW 1 Series F20/F21 models built around 2018 fail their MOT about as often as similar cars the same age.
Looking at a BMW 1 Series F20/F21?
Enter its number plate to see its full MOT history, risk rating and running costs.
Key figure
15% of MOT tests on BMW 1 Series F20/F21 models built around 2018 ended in a fail (retests included), against 16% for similar cars the same age.
Most common issue
The most common MOT issue on BMW 1 Series F20/F21 models built around 2018 involves the tyres.

Based on 293,436 tests of 1 Series models registered 2011-2018.
About 1 in 40 1 Series F20/F21 MOTs (2.5%) failed and still hadn't passed 3 days later. That's for cars built around 2018 (7 years old), all fuels combined.
Based on 34,246 tests (DVSA MOT results, 2025). A fail that passed a retest within 3 days, even the same day, isn't counted. Nor is a fail with no later MOT on record.
About 1 in 20 1 Series F20/F21 MOTs (5.5%) found at least one dangerous defect. These are cars built around 2018 (7 years old).
Based on 34,246 tests (DVSA MOT results, 2025). Dangerous is the most serious grade an MOT gives: a direct risk to road safety.
F20/F21 fail rate by age
Fail rate is the share of MOT tests that ended in a fail. Retests count as tests. How we count fail rates Build years are worked out from age, so they are approximate. Tests counted are 2025 MOTs. Highest fail rate at 13 years old.
How the 1 Series F20/F21 compares
At each age below, see how the 1 Series F20/F21 holds up against other cars the same age. The averages combine all fuel types.
Based on 156,618 tests across 18 BMW models, built around 2018 (7 years old).
Fail rate is the share of MOT tests that ended in a fail. Retests count as tests. How we count fail rates Build years are worked out from age, so they are approximate. Tests counted are 2025 MOTs.
What to check before viewing
The model's most common MOT issues, turned into things you can ask about or look for.
Brake pads
High priorityAsk when the pads were last replaced and check the warning-light history.
Brake discs
High priorityAsk for the date and mileage of the last disc replacement; visually check for a deep wear lip and rust pitting on each disc.
Tyres
Worth checkingCheck tread depth across the full width on all four; uneven wear suggests alignment or suspension issues.
Vehicle-specific check
Worth checkingCheck the car’s number plate on MOT Wise to see its own MOT history and any recalls for its build years.
Other hatchbacks to compare
Other hatchbacks, with each one's figures taken at the same age as the 1 Series F20/F21.
- 1

Mini
Same body type, tested at the same age
- Fail rate
- 12.3%
- Still registered at 10 years
- 95.6%
Lower fail rate: 12.3%, against 14.8% for the BMW 1 Series F20/F21, both built around 2018.
Some figures could not be compared for these two cars. So this comparison uses the fail rate, share still registered and recalls only.
50,561 MOT tests on cars built around 2018
- 2

Suzuki SX4
Same body type, tested at the same age
- Fail rate
- 13.5%
No clear edge over the BMW 1 Series F20/F21 on these figures.
Some figures could not be compared for these two cars. So this comparison uses the fail rate and recalls only.
3,314 MOT tests on cars built around 2018
- 3

Toyota Prius
Same body type, tested at the same age
- Fail rate
- 11.1%
- Fail, no pass in 3 days
- 0.9%
- Dangerous
- 3.5%
- Still registered at 10 years
- 94.4%
Lower fail rate: 11.1%, against 14.8% for the BMW 1 Series F20/F21, both built around 2018.
17,367 MOT tests on cars built around 2018
- 4

Fiat 500
Same body type, tested at the same age
- Fail rate
- 16.9%
No clear edge over the BMW 1 Series F20/F21 on these figures.
Some figures could not be compared for these two cars. So this comparison uses the fail rate and recalls only.
1,235 MOT tests on cars built around 2018
- Fail rate
- = the share of MOT tests that ended in a fail. Retests count as tests.
- Fail, no pass in 3 days
- = the share of MOT tests that failed and still hadn't passed 3 days later. A fail that passed a retest within 3 days, even the same day, isn't counted.
- Dangerous
- = the share of MOT tests where the tester marked a fault as dangerous. It is against the law to drive the car until it is fixed.
- Still registered at 10 years
- = the share of cars still registered (taxed or declared off the road) 10 years after they were first registered.
How many are still registered
UK average for cars first registered in 2014 to 2015: 92% · The same
The share still registered can reflect demand, the cost of repairs, exports, write-offs and how owners use the car. It isn't proof of how long the car lasts mechanically.
Source: DfT vehicle licensing statistics (VEH0124).
Recall context
69 recalls in all21 of the 69 1 Series F20/F21 recalls cover cars built in these years.
- 7 Critical
- 14 more
Top concerns
- Check driver’s airbag for conversion Takata SDI & PSDI-5
- Takata driver and/or passenger airbag recall (global VINs)
- Exhaust gas recirculation module cooler could leak
For the exact car, check GOV.UK's recall checker with the number plate.
Fail rate by engine size, built around 2018 (7 years old)
Engine sizes across all petrol 1 Series tests (not specific to F20/F21).
How 1 Series F20/F21 cars have aged
How 1 Series F20/F21 cars have aged
How fail rates have changed as these cars got older. Each line follows cars first registered in about the same year across several years of MOT data. Not a prediction for any one car.
F20/F21 variants compared
1 Series F20/F21 variants built around 2018
The fail rate for each 1 Series F20/F21 variant, grouped by fuel. Each row counts fails per MOT test, the same way as the main fail rate chart.
Petrol
- 11815.7%10,209 tests
- 1 SERIES10.9%7,879 tests
- 12011.1%642 tests
Diesel
- 11617.5%5,202 tests
- 11817.1%4,525 tests
- 1 SERIES14.5%4,302 tests
- 12015.4%1,245 tests
Most common issues on BMW 1 Series models of this age
This list covers every BMW 1 Series built around 2018, whichever generation it is. We don't have a defect list for the F20/F21 on its own.
Most common advisories and fails
In order of the share of MOT tests that recorded each one
- 120.7%Advisory
Tyre worn close to the legal limit or worn on the edge
- 210.8%Advisory
Brake pads wearing thin
- 36.6%Advisory
Tyre slightly damaged, cracking or perishing
- 46.1%Advisory
Brake disc worn, pitted or scored, but not seriously weakened
- 53.8%Advisory
Shock absorber has a light misting of oil
Based on 34,246 tests
Looking at a BMW 1 Series F20/F21?
Enter its number plate to see its full MOT history, risk rating and running costs.
Frequently asked questions
Built around 2018 (7 years old), the BMW 1 Series F20/F21 (2011-2018) fails MOTs at about the rate typical for this age. This is based on 34,246 7-year-old MOT tests from DVSA data. Each retest counts as a test.