Should I check the MOT history before buying a 1991 BMW 318 I Convertible?

Yes. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. A full MOT history analysis will highlight patterns that a single test result won't reveal.

What corrosion should I look for when inspecting a 1991 BMW 318 I Convertible?

Check brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that is expensive to fix and can fail an MOT.

How are tyres and brakes typically on a 1991 BMW 318 I Convertible?

Tyres and brakes are the most common advisory items on vehicles of this age. Budget for replacement if they are near the limit, and factor this into your offer price.

Do I need an HPI check when buying a 1991 BMW 318 I Convertible?

Yes. The MOT history will not show outstanding finance, insurance write-offs, or stolen status. An HPI check covers these areas and should be part of any used car purchase.

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BMW 318 I Convertible (1991)

107 real MOT outcomes analysed • 5% first-time pass rate

1991 BMW 318 I Convertible

CarHunch analysed 107 real MOT records for the 1991 BMW 318 I Convertible. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.

This 1991 BMW 318i Convertible is in dire condition — only 5% pass first time, compared to the UK average of 80%, and the petrol variants among the 107 analysed here achieved a 0% pass rate, suggesting these cars are fundamentally unfit for road use. The good news is that dangerous defects are absent (0%), but that barely matters when virtually every vehicle fails its MOT.

At an average mileage of nearly 80,000 miles for a 33-year-old car, these examples have been driven hard and are simply worn out; the fact that there are almost no recorded failures or advisories per vehicle suggests the MOT testers aren't even bothering to itemise problems on cars this decrepit. If you're considering one, treat it as a project car or parts donor only, not as transport.

Below average reliability 75% below UK average

pass MOT first time

UK average: ~80%

ever had a dangerous defect

recorded at any MOT

0.03

avg MOT failures per car

over 1.2 tests on record

What to check before buying a 1991 BMW 318 I Convertible

Practical pre-purchase checks for this age and model.

📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.

Before you buy a BMW 318 I Convertible

MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.

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Pass Rate by Fuel Type

Fuel type	Vehicles	Pass rate	Avg failures
Petrol (94%)	101	0%	0
Other (6%)	6	89.8%	0.5

MOT History Averages

1.2

Avg MOT tests per vehicle

0.03

Avg failures per vehicle

Avg advisories per vehicle

Found a specific BMW 318 I Convertible?

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