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MOT reliability

Bmw Z4

45,773 vehicles · 696,427 completed MOT tests analysed
80%
MOT pass rate

Based on 45,773 Bmw Z4 vehicles and 696,427 completed MOT tests, the Bmw Z4 has an overall 80% pass rate, with an average recorded mileage of 76,441 miles.

45,773
Vehicles
696,427
MOT tests
4,779
Avg miles / year
1.6
Faults per test
3%
Dangerous-fault share

Bmw Z4 problem areas

Where faults occur most across all Bmw Z4 MOT tests:

  • Other55%
  • Tyres, wheels & suspension25%
  • Brakes17%
  • Lamps & electrical5%
  • Emissions & nuisance5%
  • Visibility2%
  • Seatbelts & equipment1%
  • Body & structure1%

Bmw Z4 pass rate by age

How the Bmw Z4's MOT pass rate changes as it ages (buckets with 20+ tests).

Age (years)TestsPass rate
13985%
23,17392%
353,45586%
452,80585%
551,89283%
650,38782%
748,12381%
846,95880%
946,80879%
1045,75078%
1143,04378%
1240,41577%
1337,17877%
1433,93877%
1530,40877%
1626,92376%
1723,10175%
1820,16575%
1916,03575%
2011,69574%

Fuel types: Petrol (45,748), Diesel (17), Other (4), LPG (2), Electric (1), Gas Bi-Fuel (1)

Most common Bmw Z4 MOT faults

These are the faults and advisories recorded most often across Bmw Z4 MOT tests:

  1. Nearside Rear Tyre worn close to the legal limit (4.1.E.1) (21,498 times)
  2. Offside Rear Tyre worn close to the legal limit (4.1.E.1) (21,089 times)
  3. Oil leak, but not excessive (8.4.1 (a) (i)) (17,124 times)
  4. Under-trays fitted obscuring some underside components (15,564 times)
  5. Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (14,745 times)
  6. Offside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (14,240 times)
  7. Nearside Front Tyre worn close to the legal limit (4.1.E.1) (11,996 times)
  8. Offside Front Tyre worn close to the legal limit (4.1.E.1) (11,384 times)
  9. Front Brake pad(s) wearing thin (3.5.1g) (11,166 times)
  10. Nearside Rear Brake pipe corroded, covered in grease or other material (1.1.11 (c)) (10,298 times)
  11. Rear Brake pad(s) wearing thin (3.5.1g) (9,100 times)
  12. Offside Rear Brake pipe corroded, covered in grease or other material (1.1.11 (c)) (8,917 times)
  13. Engine covers fitted obscuring some components in the engine bay (8,422 times)
  14. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e)) (8,023 times)
  15. Front Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii)) (7,783 times)

Bmw Z4 pass rate by registration year

YearVehiclesTestsPass rateAvg mileage
2025 1 1 100% 45,018
2024 3 3 100% 8,773
2023 466 516 94% 16,163
2022 840 1,562 93% 19,956
2021 1,014 3,121 92% 26,531
2020 1,484 5,988 91% 29,688
2019 1,972 10,376 90% 33,145
2017 142 1,126 87% 44,001
2016 1,274 10,793 87% 45,391
2015 1,665 16,010 87% 52,350
2014 2,048 21,770 87% 57,617
2013 1,734 20,416 86% 62,800
2012 2,120 27,056 85% 67,977
2011 2,154 30,253 85% 70,089
2010 2,268 33,771 84% 75,196
2009 2,906 45,779 84% 78,068
2008 2,297 40,749 78% 83,951
2007 4,249 78,110 78% 89,188
2006 4,400 83,264 77% 91,511
2005 3,295 67,214 74% 99,811
2004 4,890 102,387 76% 101,805
2003 4,526 96,014 75% 103,909
2002 3 11 64% 58,646
2000 1 12 67% 280,164
1999 3 52 83% 93,940
1998 3 30 70% 68,121
1997 1 1 100% 35,425
1985 1 1 0% 105,054

Bmw Z4 reliability FAQ

Across 45,773 Bmw Z4 vehicles in our MOT data, 80% pass the MOT (a 20% failure rate), with about 1.6 faults or advisories recorded per test.

The most frequently recorded Bmw Z4 MOT issues are: Nearside Rear Tyre worn close to the legal limit (4.1.E.1); Offside Rear Tyre worn close to the legal limit (4.1.E.1); Oil leak, but not excessive (8.4.1 (a) (i)).

The typical Bmw Z4 in our data has covered around 76,441 miles.

Compare the Bmw Z4

See how the Bmw Z4 stacks up against other Bmw models on MOT reliability:

Z4 vs 3 series Z4 vs 118 Z4 vs 316 Z4 vs 520

Check a specific Bmw Z4

Enter a registration to see that exact vehicle's full MOT history, advisories and recurring faults.

See all Bmw models · Learn about common MOT failures · what an MOT checks