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BMW 320i M Sport A MOT Pass Rate

Overall pass rate across all manufacture years, based on 1,238 real MOT test results. Failure rate: 26.7%.

73.3%
Pass Rate
26.7%
Fail Rate
1,238
Total Tests
Tyres
Top Failure

Data from official DVSA MOT testing records

BMW 320i M Sport A MOT Reliability Overview

The BMW 320i M Sport A is a niche vehicle in the UK, with 1,238 MOT test results recorded in our database spanning 3 manufacture years. It has an overall MOT pass rate of 73.3% and a failure rate of 26.7%, which is above the UK average of approximately 37%.

Based on this data, the BMW 320i M Sport A earns a "Very Good" reliability rating. The average BMW 320i M Sport A presents for MOT with approximately 48,683 miles on the clock. Manufacture year matters: 2009 models achieve the highest pass rate at 75.0%, while 2007 models have the lowest at 71.5%. This 3.5 percentage point difference suggests notable variation in build quality or component durability across production years.

The most common MOT failure for the BMW 320i M Sport A is Tyres, affecting 19.5% of all tests. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. The second most common issue is Brakes at 13.2%. Lamps, Reflectors and Electrical Equipment rounds out the top three at 9.5%. Together, these top 3 failure categories account for a significant portion of all MOT failures for this model.

Top failures across all manufacture years combined. Individual year pages may show different top failures.

What Fails Most

⚖️ Compare

Best Year to Buy

📊
Insufficient data per manufacture year for this analysis

📈 How Each Vintage Ages

📈
Insufficient data per manufacture year for this analysis

📉 How Age Affects Reliability

MOT failure rate by vehicle age for the BMW 320i M Sport A. The dashed red line marks when the manufacturer warranty typically expires (3 years).

22.1%
Fail rate at end of warranty (year 3)
25.5%
Fail rate after warranty (year 4)
+15.4%
Cliff increase

Line chart showing MOT failure rate by vehicle age from 3 to 9 years, with warranty expiry marked at 3 years.

Fail Rate %Warranty expires
This model Fleet average Warranty expiry

💡 What does the warranty cliff mean?

The BMW 320i M Sport A ages relatively gracefully. The failure rate increase of 19% after warranty is below average, suggesting good long-term reliability. Peak failure occurs at age 8 (30.4% fail rate).

Note: pass rates may improve for very old vehicles due to survivorship bias — only well-maintained cars remain on the road.

Pass Rate by Manufacture Year

75.0%
Tests Avg Mileage 43,030Top Failure Tyres
74.2%
Tests Avg Mileage 49,730Top Failure Tyres
71.5%
Tests Avg Mileage 50,355Top Failure Tyres

* High Fail Rate badge indicates an MOT pass rate below 65% (failure rate above 35%).

What Fails on This Car?

Click a category to see specific failure items.

View as table
MOT failure categories ranked by failure rate
RankFailure CategoryRate (%)Count
1Tyres21.6%267
2Brakes13.5%167
3Lamps, Reflectors And Electrical Equipment10.3%127
4Road Wheels5.2%64
5Exhaust, Fuel And Emissions5.1%63
6Suspension5.1%63
7Driver's View Of The Road4.3%53
8Registration Plates And Vin2.5%31
9Seat Belts And Supplementary Restraint Systems0.4%5
10Steering0.4%5
11Non-component Advisories0.3%4
12Items Not Tested0.2%3

Failures per 10,000 Miles

avg. 48,683 mi

For every 10,000 miles driven, this shows what percentage of MOT tests fail for each category. This accounts for how far cars are actually driven, not just raw pass/fail counts.

Tyres4.43% per 10K miBrakes2.77% per 10K miLamps & Electrical2.11% per 10K miWheels1.06% per 10K miEmissions & Exhaust1.05% per 10K miSuspension1.05% per 10K miVisibility0.88% per 10K miRegistration Plates and VIN0.51% per 10K miSeat Belts0.08% per 10K miSteering0.08% per 10K miNon-component advisories0.07% per 10K miItems Not Tested0.05% per 10K mi
View as table
Mileage-normalised failure rates by category
CategoryRate / 10K miRaw %Count
Tyres4.4321.6%267
Brakes2.7713.5%167
Lamps & Electrical2.1110.3%127
Wheels1.065.2%64
Emissions & Exhaust1.055.1%63
Suspension1.055.1%63
Visibility0.884.3%53
Registration Plates and VIN0.512.5%31
Seat Belts0.080.4%5
Steering0.080.4%5
Non-component advisories0.070.3%4
Items Not Tested0.050.2%3

🚗 Similar Cars to Consider

🚗
No comparable models

Mileage at MOT

48,683
Mean
30,828
Median
27,099
25th Percentile
41,597
75th Percentile

The average BMW 320i M Sport A has 48,683 miles when tested for MOT.

📊 Mileage-Adjusted Failure Rate

How often this car fails MOT relative to how much it's driven — a fairer comparison than raw pass rate.

5.48%
Fail Rate per 10K Miles
Average across all makes: 5.38%
26.7%
Overall Fail Rate
48,683 avg miles
⚠️ Average — typical failure rate

The BMW 320i M Sport A has a mileage-adjusted failure rate of 5.48% per 10,000 miles driven. The average across all makes is 5.38%, so this model is worse than average.

About BMW 320i M Sport A MOT Data

The BMW 320i M Sport A is a niche vehicle in the UK, with 1,238 MOT test results recorded in our database spanning 3 manufacture years. It has an overall MOT pass rate of 73.3% and a failure rate of 26.7%, which is above the UK average of approximately 37%.

For BMW 320i M Sport A owners, these results suggest a reliable vehicle that generally passes its MOT without major issues. Focus your pre-MOT checks on tyres and brakes for the best chance of a first-time pass. Use our detailed year-by-year breakdown and failure analysis below to understand how your specific 320i M Sport A is likely to perform.

Tyres — 19.5% of failures

Tyres issues account for 19.5% of MOT failures on the BMW 320i M Sport A. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. Typical repair costs: £50–200 per tyre. Pre-MOT check: Check tread depth with a 20p coin — if the outer band is visible, the tyre is too worn. Look for bulges, cuts, or embedded objects. Ensure all tyres match the recommended size and load rating.

Brakes — 13.2% of failures

Brakes issues account for 13.2% of MOT failures on the BMW 320i M Sport A. Brake-related failures include worn brake pads, corroded brake discs, leaking brake lines, and faulty brake servos. These are safety-critical components — any brake deficiency will result in an MOT fail. Typical repair costs: £150–400. Pre-MOT check: Listen for squealing or grinding noises. Check brake pedal feel — if it feels spongy or goes to the floor, have the system inspected immediately. Look at brake pad thickness through the wheel spokes (minimum 3mm).

Lamps, Reflectors and Electrical Equipment — 9.5% of failures

Lamps, Reflectors and Electrical Equipment issues account for 9.5% of MOT failures on the BMW 320i M Sport A. Lighting failures cover all external lights: headlights, tail lights, brake lights, indicators, fog lights, and reflectors. A single blown bulb will cause an MOT fail. This is one of the most preventable failure categories. Typical repair costs: £5–50. Pre-MOT check: Walk around the car and check every light — headlights (dipped and main beam), side lights, tail lights, brake lights, indicators, hazard lights, reverse light, rear fog light, and number plate lights. Replace any blown bulbs before the test.

Frequently Asked Questions

What is the MOT pass rate for the BMW 320i M Sport A?

Based on 1,238 MOT tests in our database, the BMW 320i M Sport A has an overall pass rate of 73.3% (26.7% fail rate).

What are the most common MOT failures on a BMW 320i M Sport A?

The top 3 reasons a BMW 320i M Sport A fails its MOT are: 1. Tyres (19.5%), 2. Brakes (13.2%), 3. Lamps, Reflectors and Electrical Equipment (9.5%). Check these areas before booking your MOT.

Is the BMW 320i M Sport A reliable?

With a 26.7% MOT failure rate, the 320i M Sport A is more reliable than average compared to the UK average of ~40%.

What should I check before an MOT on my BMW 320i M Sport A?

Based on failure data, focus on: Tyres (19.5%); Brakes (13.2%); Lamps, Reflectors and Electrical Equipment (9.5%). These are the areas most likely to cause a fail. Also check all lights, tyres (minimum 1.6mm tread), and windscreen condition — these are quick wins that apply to all cars.

Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.

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