Proton Sl (1994)
1994 Proton Sl
CarHunch analysed 577 real MOT records for the 1994 Proton Sl. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
The 1994 Proton SL is a deeply unreliable proposition: only 12.3% pass their MOT first time, compared to the UK average of 80%, and nearly 1 in 100 have been flagged with a dangerous defect at some point. This is not a car to buy for dependability or safety.
At nearly 80,000 miles median, these vehicles have covered reasonable distance for their age, yet they still average 0.19 failures and 0.5 advisories per test—suggesting fundamental design or build issues rather than simple wear. If you're considering one, budget heavily for immediate remedial work and expect ongoing repair costs that will likely exceed the vehicle's value.
What to check before buying a 1994 Proton Sl
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 Proton Sl
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 (100%) | 576 | 12.3% | 0.19 |
| Diesel (0%) | 1 | 0% | 0 |
Mileage Distribution
Most 1994 Proton Sl vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.
Half of all 1994 Proton Sl vehicles fall between 63,782 and 100,418 miles.
MOT History Averages
Most Common MOT Issues — 1994 Proton Sl
Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.
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24.2%
Offside Front Tyre worn close to the legal limit
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24.2%
Nearside Front Tyre worn close to the legal limit
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19.7%
Oil leak
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15.2%
Offside Rear Tyre worn close to the legal limit
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13.6%
Nearside Front constant velocity joint gaiter deteriorated
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13.6%
Offside Front constant velocity joint gaiter deteriorated
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12.1%
Nearside Front Brake pipe slightly corroded
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12.1%
Offside Front Tyre tread depth below requirements of 1.6mm
Data covers a 3-year window centred on 1994. Counts include advisories and failures.
Found a specific Proton Sl?
Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.