BMW Z4 Common Problems, Faults & Repair Costs (2026)
Based on official DVSA MOT test data. View the most common MOT failure categories, pass rates, and estimated repair costs for the BMW Z4 (2003–present).
MOT Pass Rate
Reliability rating: Good — based on approx. 8,000 tests
1.60%
Moderate risk
13.0%
of failed tests need a retest
Top MOT Failure Categories
Lamps, reflectors and electrical equipment
Est. repair: £40–£200
Suspension
Est. repair: £120–£450
Brakes
Est. repair: £100–£350
Tyres
Est. repair: £50–£120 per tyre
Exhaust, fuel and emissions
Est. repair: £40–£200
Where Faults Occur
31.0%
Front
28.0%
Rear
20.0%
Offside
Mileage Benchmarks
At 3 years
18,000 mi
At 5 years
30,000 mi
At 10 years
58,000 mi
Significantly higher or lower mileage than these benchmarks may indicate unusual usage patterns. Check the full MOT history for mileage consistency.
Is a BMW Z4 a Good Buy?
The BMW Z4 demonstrates above-average reliability based on MOT test data, with a 80.8% pass rate. This places it 1.2% above the national average, suggesting lower ongoing maintenance costs compared to many competitors.
While no car is without faults, lamps, reflectors and electrical equipment issues are the most common concern, affecting approximately 15.5% of failed tests. These tend to be relatively affordable to fix at £30–£150.
BMW Z4 MOT Check & History
View detailed MOT pass rates by year, mileage benchmarks, and full test history data for the BMW Z4.
Check a Specific BMW Z4
Enter a registration number to view the full MOT history for any BMW Z4.
Other BMW Models
BMW 3 Series
79.5%Lamps, reflectors and electrical equipment →
BMW 1 Series
80.2%Lamps, reflectors and electrical equipment →
BMW 5 Series
77.8%Lamps, reflectors and electrical equipment →
BMW X1
82.5%Lamps, reflectors and electrical equipment →
BMW X3
81.8%Lamps, reflectors and electrical equipment →
BMW 2 Series
83.5%Lamps, reflectors and electrical equipment →