Bmw Z4
Reliability, running costs, and MOT data across 19 years from 77,384 real MOT tests.
Avg Pass Rate
87%
Total Tests
77,384
Best Year
2022 (97%)
Years Covered
19
About the Bmw Z4
The Bmw Z4 has been tested 77,384 times in 2026 MOT data across 19 model years (2003 to 2022), with an average pass rate of 87%. That's slightly above the national average of 82%. Available as petrol and diesel.
Best and Worst Years
The 2022 model is the most reliable with a 97% pass rate from 190 tests. The 2005 model has the lowest at 78%. With a 19 point spread, choosing the right year makes a big difference to reliability.
Reliability Trend
Newer BMW Z4s show better MOT pass rates than older ones, with an average improvement of 9 percentage points.
Mileage Across Years
The oldest model in our data (2003) averages 98,016 miles, while the newest (2022) averages 16,859 miles.
Estimated Running Costs
Based on 7,400 miles/year, current fuel prices, and MOT pass rate data. Insurance not included.
Full 2022 detailsHow reliable is the Bmw Z4?
Bmw Z4 by Year
Click any year to see detailed running costs, reliability data, and comparisons with similar cars.
| Year | Pass Rate | Tests | Avg Mileage | |
|---|---|---|---|---|
| 2022 | 97% | 190 | 16,859 mi | |
| 2021 | 95% | 3,193 | 18,645 mi | |
| 2020 | 94% | 4,507 | 22,507 mi | |
| 2019 | 93% | 5,476 | 26,551 mi | |
| 2017 | 92% | 281 | 36,527 mi | |
| 2016 | 88% | 2,559 | 41,764 mi | |
| 2015 | 90% | 3,403 | 47,388 mi | |
| 2014 | 89% | 3,837 | 52,736 mi | |
| 2013 | 88% | 3,369 | 58,294 mi | |
| 2012 | 87% | 4,094 | 65,038 mi | |
| 2011 | 88% | 4,148 | 66,482 mi | |
| 2010 | 87% | 3,917 | 72,537 mi | |
| 2009 | 87% | 5,341 | 75,050 mi | |
| 2008 | 81% | 3,803 | 80,859 mi | |
| 2007 | 83% | 6,508 | 87,843 mi | |
| 2006 | 81% | 6,617 | 89,752 mi | |
| 2005 | 78% | 4,523 | 96,092 mi | |
| 2004 | 81% | 6,308 | 95,043 mi | |
| 2003 | 79% | 5,310 | 98,016 mi |
Bmw Z4 Guides & Articles
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