BMW Z4 (2006)
Running costs, common problems, and reliability data based on 6,617 real MOT tests in 2024.
MOT Pass Rate
81%
Total Tests (2024)
6,617
Avg Mileage
89,752 mi
Est. Annual Cost
£1,867
Is the 2006 BMW Z4 reliable?
Good reliability. Occasional issues but generally solid. That's close to the national average of 82%. It falls below the BMW brand average of 88%.
At 18 years old, 81% of BMW Z4s from 2006 passed their MOT first time in 2024. That's based on 6,617 tests across the UK. The average mileage at this age is 89,752 miles.
How does the 2006 BMW Z4 compare?
Mileage Analysis
The average 2006 BMW Z4 has 89,752 miles on the clock, which is below the expected 133,200 miles for a 18-year-old car. This suggests lighter use than average, which generally means less wear on major components.
Best year to buy a BMW Z4?
The most reliable year is the 2022 model with a 97% MOT pass rate, while the 2005 model has the lowest at 78%. The 2006 sits between the two at 81%.
How much does a 2006 BMW Z4 cost to run?
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.
BMW Z4 by Year
| 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 |
Checking a specific BMW Z4?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2006 BMW Z4
The 2006 BMW Z4 is a premium with a 1995cc petrol engine. 6,617 of these vehicles were MOT tested in 2024, making it a reasonably common sight on UK roads. It ranks in the top 23% of all 2006 cars for reliability.
With an average of 89,752 miles at 18 years old, BMW Z4 owners tend to use this car less than the typical driver.
2006 BMW Z4 Fuel Costs
The 1995cc petrol engine offers a reasonable balance between performance and economy. Expect around 36 mpg in mixed driving, which works out to roughly £1,327 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).
What does it cost to own a 2006 BMW Z4?
Total estimated annual running cost is £1,867 (£156/month), broken down as £1327 fuel, £135 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 81% pass rate. Keeping on top of servicing will help avoid surprises.
BMW Z4 Reliability Trend
Newer BMW Z4s show better MOT pass rates than older ones, with an average improvement of 9 percentage points.
Buying a Used 2006 BMW Z4
At 18 years old, the BMW Z4 is firmly in budget territory. Purchase prices are low, but check for rust, worn suspension bushes, and electrical gremlins. A full service history is especially valuable at this age. If you're flexible on year, the 2022 model has the highest pass rate at 97%. With 6,617 MOT tests in our data, there's strong statistical confidence in these figures.
Alternatives to the 2006 BMW Z4
The BMW Z4 is actually the most reliable option among similar petrol premiums from this era. Here are comparable petrol cars with similar engines:
- FORD FOCUS (2008) 73% pass rate (-8%) from 90,659 tests
- BMW 3 SERIES (2007) 80% pass rate (-1%) from 55,686 tests
- MINI MINI (2008) 74% pass rate (-7%) from 54,730 tests
- RENAULT CLIO (2007) 68% pass rate (-13%) from 41,223 tests