Proton Gls Reliability, MOT Pass Rate & Common Faults
Free Proton Gls car check
Is the Proton Gls reliable? We analysed 3,834 real MOT tests across 963 vehicles to find out.
Got a specific Proton Gls? Enter the reg for a free check:
The Proton 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 brake pipe excessively corroded. Here's everything you need to know before buying a used Proton Gls.
Proton Gls Number Plates
Number plates registered to a Proton Gls. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Proton Gls MOT Pass Rate by Year
How likely is a Proton Gls to pass its MOT? Here's the pass rate for each registration year, newest first.
Proton Gls Problems — What Goes Wrong?
The most common reasons a Proton Gls fails its MOT, ranked by how often they occur. Check for these problems before you buy.
Proton Gls Mileage — What's Normal?
How many miles does a typical Proton Gls owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Proton Gls MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Proton Gls year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 1996 | 355 | 71.3% | 52,710 | 68,175 | 88,749 |
| 1995 | 242 | 69.8% | 46,788 | 63,030 | 83,012 |
| 1994 | 645 | 67.9% | 56,342 | 73,792 | 93,154 |
| 1993 | 1,015 | 67.8% | 55,428 | 72,433 | 93,819 |
| 1992 | 755 | 66.4% | 57,683 | 78,192 | 95,967 |
| 1991 | 574 | 68.5% | 60,722 | 77,610 | 103,843 |
| 1990 | 98 | 61.2% | 45,780 | 59,918 | 81,645 |
| 1989 | 101 | 75.2% | 42,327 | 52,767 | 69,873 |
How Long Does a Proton Gls Last?
Based on 963 Proton Gls vehicles on UK roads.
Proton Gls Mileage Distribution
Total mileage recorded across all Proton 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 Gls
Based on MOT pass rates across all registration years with sufficient test data.
75.2% MOT pass rate from 101 tests
61.2% MOT pass rate from 98 tests
The best year to buy a used Proton Gls is 1989, which has the highest MOT pass rate at 75.2% across 101 tests. The 1990 model year has the lowest pass rate at 61.2% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the Proton Gls Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Proton Gls THIS CAR | 68.2% | 3,834 | 72,367 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 |
| Harley-davidson XL 883 N Iron 18 | 90.2% | 2,010 | 4,854 mi | — yrs |
Compared to the Proton Persona (66.0% pass rate) and the Proton GEN-2 (70.5% pass rate), the Proton Gls sits in the middle of the pack on MOT reliability.
Found a Proton Gls you like?
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 GlsShould you buy a used Proton Gls?
The Proton Gls has an overall MOT pass rate of 68.2% across 3,834 real MOT tests — roughly in line with the UK average.
The most common problems on the Proton Gls are constant velocity joint gaiter split (382 recorded failures), tyre tread depth below requirements of 1.6mm (345), and brake pipe excessively corroded (201). 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 Gls owner drives around 4,136 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 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.