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BMW i4 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 i4 (2021–present).

MOT Pass Rate

90.8%8.8% above national avg (82%)

Reliability rating: Excellent — based on approx. 4,000 tests

Dangerous Defects

0.70%

Low risk

Retest Rate

7.0%

of failed tests need a retest

Top MOT Failure Categories

1

Lamps, reflectors and electrical equipment

Est. repair: £40–£200

10.0%
2

Suspension

Est. repair: £120–£450

7.8%
3

Brakes

Est. repair: £100–£350

7.2%
4

Tyres

Est. repair: £50–£120 per tyre

8.5%
5

Exhaust, fuel and emissions

Est. repair: £40–£200

1.8%

Where Faults Occur

26.0%

Front

24.0%

Rear

18.0%

Offside

Mileage Benchmarks

At 3 years

20,000 mi

At 5 years

N/A

At 10 years

N/A

Significantly higher or lower mileage than these benchmarks may indicate unusual usage patterns. Check the full MOT history for mileage consistency.

Is a BMW i4 a Good Buy?

The BMW i4 demonstrates above-average reliability based on MOT test data, with a 90.8% pass rate. This places it 8.8% 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 10.0% of failed tests. These tend to be relatively affordable to fix at £30–£150.

BMW i4 MOT Check & History

View detailed MOT pass rates by year, mileage benchmarks, and full test history data for the BMW i4.

View BMW i4 MOT Data

Check a Specific BMW i4

Enter a registration number to view the full MOT history for any BMW i4.

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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 →

View all BMW models

Frequently Asked Questions

What are the most common MOT faults on a BMW i4?
The top MOT failure on the BMW i4 is Lamps, reflectors and electrical equipment, accounting for approximately 10.0% of all failures. Other common issues include suspension and brakes.
What is the BMW i4 MOT pass rate?
The BMW i4 has an estimated MOT pass rate of 90.8%, which is 8.8% above the national average of 82%. This rates the BMW i4 as "Excellent" for MOT reliability.
Is the BMW i4 reliable?
Based on DVSA MOT data, the BMW i4 has a excellent reliability record with a 90.8% pass rate. It has a dangerous defect rate of 0.70% and a retest rate of 7.0%.
How much does it cost to fix common BMW i4 MOT failures?
Typical repair costs for BMW i4 MOT failures range from £30–£200 for lamps, reflectors and electrical equipment issues to £120–£450 for suspension problems. Prices are estimates based on typical UK independent garage rates.
What mileage should a BMW i4 have?
Based on MOT test data, the average BMW i4 covers approximately 20,000 mi by 3 years, N/A by 5 years, and N/A by 10 years. Significantly higher or lower mileage may warrant closer inspection.
Should I buy a used BMW i4?
The BMW i4 is generally a solid choice based on MOT data. Check the full MOT history of any specific vehicle before purchasing, paying particular attention to lamps, reflectors and electrical equipment issues and mileage consistency.
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