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BMW 318 I Conv Lux MOT Pass Rate

Overall pass rate across all manufacture years, based on 86 real MOT test results. Failure rate: 39.5%.

60.5%
Pass Rate
39.5%
Fail Rate
86
Total Tests
Lamps, Reflectors and Electrical Equipment
Top Failure

Data from official DVSA MOT testing records

BMW 318 I Conv Lux MOT Reliability Overview

The BMW 318 I Conv Lux is a rare vehicle in the UK, with 86 MOT test results recorded in our database spanning 1 manufacture years. It has an overall MOT pass rate of 60.5% and a failure rate of 39.5%, which is around the UK average of approximately 37%.

Based on this data, the BMW 318 I Conv Lux earns a "Average" reliability rating. The average BMW 318 I Conv Lux presents for MOT with approximately 97,330 miles on the clock. The 1993 manufacture year performs best with a 60.5% pass rate.

The most common MOT failure for the BMW 318 I Conv Lux is Lamps, Reflectors and Electrical Equipment, affecting 29.1% of all tests. 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. The second most common issue is Brakes at 26.7%. Exhaust, Fuel and Emissions rounds out the top three at 23.3%. Together, these top 3 failure categories account for a significant portion of all MOT failures for this model.

⚠ Based on limited data (86 tests)

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

What Fails Most

⚖️ Compare

Pass Rate by Manufacture Year

1993High Fail Rate
60.5%
Tests Avg Mileage 97,330Top Failure Lamps, Reflectors and Electrical Equipment

* 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
1Lamps, Reflectors And Electrical Equipment53.5%46
2Brakes52.3%45
3Exhaust, Fuel And Emissions40.7%35
4Suspension31.4%27
5Tyres24.4%21
6Driver's View Of The Road20.9%18
7Steering10.5%9
8Body, Structure And General Items7.0%6
9Registration Plates And Vin4.7%4
10Items Not Tested2.3%2
11Seat Belts And Supplementary Restraint Systems2.3%2

Failures per 10,000 Miles

avg. 97,330 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.

Lamps & Electrical5.50% per 10K miBrakes5.38% per 10K miEmissions & Exhaust4.18% per 10K miSuspension3.23% per 10K miTyres2.51% per 10K miVisibility2.15% per 10K miSteering1.08% per 10K miBody & Structure0.72% per 10K miRegistration Plates and VIN0.48% per 10K miItems Not Tested0.24% per 10K miSeat Belts0.24% per 10K mi
View as table
Mileage-normalised failure rates by category
CategoryRate / 10K miRaw %Count
Lamps & Electrical5.5053.5%46
Brakes5.3852.3%45
Emissions & Exhaust4.1840.7%35
Suspension3.2331.4%27
Tyres2.5124.4%21
Visibility2.1520.9%18
Steering1.0810.5%9
Body & Structure0.727.0%6
Registration Plates and VIN0.484.7%4
Items Not Tested0.242.3%2
Seat Belts0.242.3%2

🚗 Similar Cars to Consider

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Mileage at MOT

97,330
Mean
100,908
Median
47,875
25th Percentile
117,212
75th Percentile

The average BMW 318 I Conv Lux has 97,330 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.

4.06%
Fail Rate per 10K Miles
Average across all makes: 5.38%
39.5%
Overall Fail Rate
97,330 avg miles
⚠️ Average — typical failure rate

The BMW 318 I Conv Lux has a mileage-adjusted failure rate of 4.06% per 10,000 miles driven. The average across all makes is 5.38%, so this model is better than average.

About BMW 318 I Conv Lux MOT Data

The BMW 318 I Conv Lux is a rare vehicle in the UK, with 86 MOT test results recorded in our database spanning 1 manufacture years. It has an overall MOT pass rate of 60.5% and a failure rate of 39.5%, which is around the UK average of approximately 37%.

For BMW 318 I Conv Lux owners, these results suggest average reliability — some preparation before MOT can improve pass chances. Focus your pre-MOT checks on lamps, reflectors and electrical equipment 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 318 I Conv Lux is likely to perform.

Lamps, Reflectors and Electrical Equipment — 29.1% of failures

Lamps, Reflectors and Electrical Equipment issues account for 29.1% of MOT failures on the BMW 318 I Conv Lux. 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.

Brakes — 26.7% of failures

Brakes issues account for 26.7% of MOT failures on the BMW 318 I Conv Lux. 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).

Exhaust, Fuel and Emissions — 23.3% of failures

Exhaust, Fuel and Emissions issues account for 23.3% of MOT failures on the BMW 318 I Conv Lux. Emissions failures occur when exhaust gases exceed legal limits for carbon monoxide (CO), hydrocarbons (HC), or particulate matter (diesel). Common causes include faulty oxygen sensors, clogged catalytic converters, or DPF issues on diesel vehicles. Typical repair costs: £100–1,000+. Pre-MOT check: If the engine management light is on, get it diagnosed before the MOT. For diesel cars, ensure the DPF has completed a regeneration cycle. Regular servicing and using premium fuel before the test can help.

Frequently Asked Questions

What is the MOT pass rate for the BMW 318 I Conv Lux?

Based on 86 (based on limited data) MOT tests in our database, the BMW 318 I Conv Lux has an overall pass rate of 60.5% (39.5% fail rate).

What are the most common MOT failures on a BMW 318 I Conv Lux?

The top 3 reasons a BMW 318 I Conv Lux fails its MOT are: 1. Lamps, Reflectors and Electrical Equipment (29.1%), 2. Brakes (26.7%), 3. Exhaust, Fuel and Emissions (23.3%). Check these areas before booking your MOT.

Is the BMW 318 I Conv Lux reliable?

With a 39.5% MOT failure rate, the 318 I Conv Lux is about average compared to the UK average of ~40%.

What should I check before an MOT on my BMW 318 I Conv Lux?

Based on failure data, focus on: Lamps, Reflectors and Electrical Equipment (29.1%); Brakes (26.7%); Exhaust, Fuel and Emissions (23.3%). 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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