Ajs Firefox Reliability, MOT Pass Rate & Common Faults
Free Ajs Firefox car check
Is the Ajs Firefox reliable? We analysed 2,176 real MOT tests across 762 vehicles to find out.
Got a specific Ajs Firefox? Enter the reg for a free check:
The Ajs Firefox is about average for reliability based on real UK MOT data. Here's everything you need to know before buying a used Ajs Firefox.
Ajs Firefox Number Plates
Number plates registered to a Ajs Firefox. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Ajs Firefox MOT Pass Rate by Year
How likely is a Ajs Firefox to pass its MOT? Here's the pass rate for each registration year, newest first.
Ajs Firefox Mileage — What's Normal?
How many miles does a typical Ajs Firefox owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Ajs Firefox MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Ajs Firefox year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 2022 | 90 | 75.6% | 3,455 | 5,884 | 7,822 |
| 2021 | 96 | 75.0% | 4,883 | 8,766 | 12,044 |
| 2020 | 174 | 75.9% | 5,938 | 9,483 | 12,824 |
| 2019 | 202 | 80.7% | 3,159 | 6,414 | 9,330 |
| 2018 | 341 | 73.3% | 3,482 | 6,244 | 10,588 |
| 2017 | 333 | 75.7% | 5,045 | 8,172 | 11,443 |
| 2016 | 241 | 73.4% | 4,117 | 7,193 | 11,332 |
| 2015 | 231 | 71.4% | 5,195 | 8,072 | 12,076 |
| 2014 | 101 | 73.3% | 4,755 | 7,312 | 9,940 |
| 2013 | 138 | 77.5% | 5,493 | 8,465 | 14,165 |
| 2012 | 182 | 76.4% | 3,621 | 8,297 | 11,818 |
How Long Does a Ajs Firefox Last?
Based on 762 Ajs Firefox vehicles on UK roads.
Ajs Firefox Mileage Distribution
Total mileage recorded across all Ajs Firefox 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 Ajs Firefox
Based on MOT pass rates across all registration years with sufficient test data.
80.7% MOT pass rate from 202 tests
71.4% MOT pass rate from 231 tests
The best year to buy a used Ajs Firefox is 2019, which has the highest MOT pass rate at 80.7% across 202 tests. The 2015 model year has the lowest pass rate at 71.4% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the Ajs Firefox Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Ajs Firefox THIS CAR | 74.9% | 2,176 | 7,536 mi | 14 yrs |
| Ajs Modena | 79.2% | 7,928 | 2,950 mi | 12 yrs |
| Ajs Modena 125 | 81.5% | 3,197 | 2,430 mi | — yrs |
| Ajs Dd | 74.8% | 2,573 | 3,914 mi | 18 yrs |
| MG Mgbgt | 75.8% | 2,202 | 41,106 mi | 60 yrs |
Compared to the Ajs Modena (79.2% pass rate) and the Ajs Modena 125 (81.5% pass rate), the Ajs Firefox trails behind on MOT reliability.
Found a Ajs Firefox 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 Ajs FirefoxShould you buy a used Ajs Firefox?
The Ajs Firefox has an overall MOT pass rate of 74.9% across 2,176 real MOT tests — roughly in line with the UK average.
A typical Ajs Firefox owner drives around 1,098 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 Ajs Firefox models stay on UK roads for around 14 years. 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.