Proton 1.5 Gls Reliability, MOT Pass Rate & Common Faults
Free Proton 1.5 Gls car check
Is the Proton 1.5 Gls reliable? We analysed 7,164 real MOT tests across 1,591 vehicles to find out.
Got a specific Proton 1.5 Gls? Enter the reg for a free check:
The Proton 1.5 Gls is about average for reliability based on real UK MOT data. Common problems include constant velocity joint gaiter split, tyre tread depth below requirements of 1.6mm and suspension component mounting prescribed area is excessively corroded. Here's everything you need to know before buying a used Proton 1.5 Gls.
Proton 1.5 Gls Number Plates
Number plates registered to a Proton 1.5 Gls. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Proton 1.5 Gls MOT Pass Rate by Year
How likely is a Proton 1.5 Gls to pass its MOT? Here's the pass rate for each registration year, newest first.
Proton 1.5 Gls Problems — What Goes Wrong?
The most common reasons a Proton 1.5 Gls fails its MOT, ranked by how often they occur. Check for these problems before you buy.
Proton 1.5 Gls Mileage — What's Normal?
How many miles does a typical Proton 1.5 Gls owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Proton 1.5 Gls MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Proton 1.5 Gls year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 2005 | 122 | 72.1% | 37,351 | 56,845 | 70,853 |
| 1995 | 57 | 68.4% | 58,577 | 76,572 | 84,251 |
| 1994 | 752 | 67.3% | 54,468 | 70,698 | 93,726 |
| 1993 | 2,138 | 70.1% | 52,586 | 71,574 | 91,796 |
| 1992 | 2,203 | 68.4% | 60,381 | 76,657 | 95,226 |
| 1991 | 1,338 | 69.1% | 59,576 | 83,662 | 104,745 |
| 1990 | 221 | 68.3% | 53,554 | 73,254 | 92,197 |
| 1989 | 114 | 61.4% | 57,322 | 63,379 | 78,925 |
How Long Does a Proton 1.5 Gls Last?
Based on 1,591 Proton 1.5 Gls vehicles on UK roads.
Proton 1.5 Gls Mileage Distribution
Total mileage recorded across all Proton 1.5 Gls MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.
Best Year to Buy a Used Proton 1.5 Gls
Based on MOT pass rates across all registration years with sufficient test data.
72.1% MOT pass rate from 122 tests
61.4% MOT pass rate from 114 tests
The best year to buy a used Proton 1.5 Gls is 2005, which has the highest MOT pass rate at 72.1% across 122 tests. The 1989 model year has the lowest pass rate at 61.4% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the Proton 1.5 Gls Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Proton 1.5 Gls THIS CAR | 69.0% | 7,164 | 73,966 mi | 37 yrs |
| Proton Persona | 66% | 104,196 | 68,588 mi | 32 yrs |
| Proton GEN-2 | 70.5% | 59,272 | 46,580 mi | 22 yrs |
| Proton Wira | 70.1% | 57,151 | 47,970 mi | 26 yrs |
| Audi A4 Technik TDI | 87.7% | 8,926 | 110,629 mi | — yrs |
Compared to the Proton Persona (66.0% pass rate) and the Proton GEN-2 (70.5% pass rate), the Proton 1.5 Gls sits in the middle of the pack on MOT reliability.
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Run a full vehicle history check on the specific car. See finance, stolen, write-off, mileage and MOT data for that exact vehicle.
Check a specific Proton 1.5 GlsShould you buy a used Proton 1.5 Gls?
The Proton 1.5 Gls has an overall MOT pass rate of 69.0% across 7,164 real MOT tests — roughly in line with the UK average.
The most common problems on the Proton 1.5 Gls are constant velocity joint gaiter split (609 recorded failures), tyre tread depth below requirements of 1.6mm (325), and suspension component mounting prescribed area is excessively corroded (318). These are the faults most likely to cause an MOT failure on this model, so check for them carefully on any test drive or pre-purchase inspection. Many are wear-and-tear items that can be budgeted for, but a car that's already failing on multiple fronts may signal neglected maintenance.
A typical Proton 1.5 Gls owner drives around 2,816 miles per year. If the car you're looking at is significantly above this, expect more wear on suspension, brakes and tyres. If it's well below, the vehicle may have been sitting unused — check for perished rubber, corroded discs and stale fluids.
In terms of longevity, most Proton 1.5 Gls models stay on UK roads for around 37 years — a strong showing that suggests solid build quality and readily available parts. If you're buying one that's already approaching that window, the data suggests it has plenty of life left provided it's been maintained.
Before committing to a purchase, we recommend running a full vehicle history check on the specific car. This will reveal any outstanding finance, stolen markers, write-off history and mileage discrepancies that the seller may not disclose — and that the MOT data alone can't tell you.