BMW 3 Series common problems by mileage
What UK MOT testers flag on the BMW 3 Series at each age and mileage, compared with all cars.
In 504,412 UK MOT tests of the BMW 3 Series in 2023, the problem that most sets it apart from other cars is flexible brake hoses (slightly deteriorated): recorded on 7.5% of tests of 2007–2009 cars at 40k–60k mi (64k–97k km), 25× the rate for all cars of that age and mileage. Other stand-out issues: shock absorbers (a serious fluid leak) (3.9×); catalyst emissions (Lambda reading after 2nd fast idle outside specified limits) (4.9×); shock absorbers (light misting of oil) (2.8×). The most common reasons a BMW 3 Series fails its MOT are position lamp (not working); shock absorbers (a serious fluid leak); tyres (tread depth below requirements of 1.6mm).
Last updated: · Source: DVSA anonymised MOT data 2023
What stands out on the BMW 3 Series
Parts that MOT testers flag clearly more often on the BMW 3 Series than on all cars of the same age at the same mileage (at least 1.5× the rate and 3% of tests).
| Issue | Type | First used | Mileage | Share of tests | All cars this age | Ratio | Tests |
|---|---|---|---|---|---|---|---|
| Flexible brake hoses: slightly deteriorated | Advisory | 2007–2009 | 40k–60k mi (64k–97k km) | 7.5% | 0.3% | 25× | 3,656 |
| Shock absorbers: has a serious fluid leak | MOT fail | 2009–2011 | 120k–140k mi (193k–225k km) | 7.1% | 1.8% | 3.9× | 14,826 |
| Catalyst emissions: Lambda reading after 2nd fast idle outside specified limits | MOT fail | 1994–1996 | 160k+ mi (257k+ km) | 5.9% | 1.2% | 4.9× | 374 |
| Shock absorbers: has light misting of oil | Advisory | 2009–2011 | 120k–140k mi (193k–225k km) | 15% | 5.1% | 2.8× | 14,826 |
| Headlamp aim: too low | MOT fail | 1989–1991 | 80k–100k mi (129k–161k km) | 6.9% | 1.7% | 4.1× | 333 |
| Ball joint: ball joint has slight play | Advisory | 1999–2001 | 60k–80k mi (97k–129k km) | 6.8% | 2.2% | 3.1× | 1,480 |
| Pins and bushes: pin or bush worn but not resulting in excessive movement | Advisory | 1989–1991 | 80k–100k mi (129k–161k km) | 11% | 3% | 3.7× | 333 |
| Individual direction indicators: slightly discoloured | Advisory | 2000–2002 | 40k–60k mi (64k–97k km) | 4.4% | 1.7% | 2.6× | 1,080 |
BMW 3 Series by mileage (2018–2020 cars)
The most-tested first-use years. For each mileage band: how many MOT tests, the most common item, and the item that stands out most against other cars.
| Mileage | Tests | Most common | Stands out |
|---|---|---|---|
| 0k–20k mi (0k–32k km) | 9,122 | Tyres (tread depth): worn close to legal limit/worn on edge (7.4%) | — |
| 20k–40k mi (32k–64k km) | 30,859 | Tyres (tread depth): worn close to legal limit/worn on edge (15%) | — |
| 40k–60k mi (64k–97k km) | 20,349 | Tyres (tread depth): worn close to legal limit/worn on edge (17%) | — |
| 60k–80k mi (97k–129k km) | 7,869 | Tyres (tread depth): worn close to legal limit/worn on edge (18%) | — |
| 80k–100k mi (129k–161k km) | 2,658 | Tyres (tread depth): worn close to legal limit/worn on edge (20%) | — |
| 100k–120k mi (161k–193k km) | 866 | Tyres (tread depth): worn close to legal limit/worn on edge (20%) | Shock absorbers: has light misting of oil (5.1%, 1.7×) |
BMW 3 Series by first-use year
| First used | Tests | Biggest stand-out issue |
|---|---|---|
| 1990 | 1,324 | Headlamp aim: too low at 80k–100k mi (129k–161k km) (4.1×) |
| 1991 | 783 | Headlamp aim: too low at 80k–100k mi (129k–161k km) (3.6×) |
| 1992 | 521 | Pins and bushes: pin or bush worn but not resulting in excessive movement at 80k–100k mi (129k–161k km) (3.3×) |
| 1994 | 521 | Flexible brake hoses: slightly deteriorated at 80k–100k mi (129k–161k km) (4.1×) |
| 1995 | 848 | Catalyst emissions: Lambda reading after 2nd fast idle outside specified limits at 160k+ mi (257k+ km) (4.9×) |
| 1996 | 1,235 | Flexible brake hoses: slightly deteriorated at 80k–100k mi (129k–161k km) (2.8×) |
| 1997 | 1,686 | Ball joint: ball joint has slight play at 60k–80k mi (97k–129k km) (2.7×) |
| 1998 | 2,338 | Ball joint: ball joint has slight play at 60k–80k mi (97k–129k km) (2.6×) |
| 1999 | 3,135 | Ball joint: ball joint has slight play at 60k–80k mi (97k–129k km) (3.2×) |
| 2000 | 3,449 | Ball joint: ball joint has slight play at 60k–80k mi (97k–129k km) (3.1×) |
| 2001 | 6,129 | Individual direction indicators: slightly discoloured at 40k–60k mi (64k–97k km) (2.6×) |
| 2002 | 9,284 | Flexible brake hoses: slightly deteriorated at 100k–120k mi (161k–193k km) (2.8×) |
| 2003 | 12,190 | Flexible brake hoses: slightly deteriorated at 100k–120k mi (161k–193k km) (3.1×) |
| 2004 | 11,697 | Flexible brake hoses: slightly deteriorated at 60k–80k mi (97k–129k km) (4.9×) |
| 2005 | 14,712 | Flexible brake hoses: slightly deteriorated at 60k–80k mi (97k–129k km) (8.3×) |
| 2006 | 22,573 | Flexible brake hoses: slightly deteriorated at 60k–80k mi (97k–129k km) (14×) |
| 2007 | 30,075 | Flexible brake hoses: slightly deteriorated at 40k–60k mi (64k–97k km) (19×) |
| 2008 | 25,669 | Flexible brake hoses: slightly deteriorated at 40k–60k mi (64k–97k km) (25×) |
| 2009 | 25,330 | Flexible brake hoses: slightly deteriorated at 40k–60k mi (64k–97k km) (23×) |
| 2010 | 28,341 | Shock absorbers: has a serious fluid leak at 120k–140k mi (193k–225k km) (3.9×) |
| 2011 | 30,344 | Shock absorbers: has a serious fluid leak at 160k+ mi (257k+ km) (3.6×) |
| 2012 | 34,444 | Shock absorbers: has a serious fluid leak at 160k+ mi (257k+ km) (3.6×) |
| 2013 | 35,419 | Shock absorbers: has a serious fluid leak at 160k+ mi (257k+ km) (3.3×) |
| 2014 | 32,780 | Shock absorbers: has a serious fluid leak at 160k+ mi (257k+ km) (3.1×) |
| 2015 | 32,141 | Shock absorbers: has light misting of oil at 160k+ mi (257k+ km) (2.1×) |
| 2016 | 32,117 | Shock absorbers: has light misting of oil at 160k+ mi (257k+ km) (1.9×) |
| 2017 | 31,236 | Shock absorbers: has light misting of oil at 160k+ mi (257k+ km) (2.2×) |
| 2018 | 25,137 | Shock absorbers: has light misting of oil at 120k–140k mi (193k–225k km) (2×) |
| 2019 | 25,894 | Shock absorbers: has light misting of oil at 100k–120k mi (161k–193k km) (1.7×) |
| 2020 | 21,107 | Tyres (condition): has a cut in excess of the requirements deep enough to reach the ply or cords at 80k–100k mi (129k–161k km) (1.9×) |
| 2021 | 1,363 | Tyres (condition): has a cut in excess of the requirements deep enough to reach the ply or cords at 60k–80k mi (97k–129k km) (2×) |
How these numbers are made
From the DVSA anonymised MOT data for 2023: every normal MOT test of a car in Great Britain, with its mileage and every advisory and failure item. For each first-use year (pooled with the years either side) and 20,000-mile band we count the share of tests where a part was recorded, and compare it with the same share for every car of that age at that mileage. A cell is shown only with 300 or more tests. Advisories are tester notes, not failures. Figures describe UK-market cars; engines and equipment can differ in other countries.
Contains public sector information licensed under the Open Government Licence v3.0 (DVSA anonymised MOT data, 2023).
Frequently asked questions
What are the most common problems with the BMW 3 Series?
In 504,412 UK MOT tests of the BMW 3 Series in 2023, the problem that most sets it apart from other cars is flexible brake hoses (slightly deteriorated): recorded on 7.5% of tests of 2007–2009 cars at 40k–60k mi (64k–97k km), 25× the rate for all cars of that age and mileage. Other stand-out issues: shock absorbers (a serious fluid leak) (3.9×); catalyst emissions (Lambda reading after 2nd fast idle outside specified limits) (4.9×); shock absorbers (light misting of oil) (2.8×). The most common reasons a BMW 3 Series fails its MOT are position lamp (not working); shock absorbers (a serious fluid leak); tyres (tread depth below requirements of 1.6mm).
Why do BMW 3 Seriess fail the MOT?
Across 504,412 MOT tests in 2023, the most common failure items on the BMW 3 Series were position lamp (not working) (4.7% of tests); shock absorbers (a serious fluid leak) (5.2% of tests); tyres (tread depth below requirements of 1.6mm) (3% of tests).
At what mileage do BMW 3 Series problems start?
The clearest BMW 3 Series-specific issue, flexible brake hoses (slightly deteriorated), peaks against other cars at 40k–60k mi (64k–97k km) on 2007–2009 cars (7.5% of tests vs 0.3% for all cars that age).
Where does this BMW 3 Series data come from?
From the UK government's anonymised MOT test data (DVSA, 2023, Open Government Licence v3.0): 504,412 tests of the BMW 3 Series. VinSnap shows the same numbers for your own car's age and mileage in the app.