Ariel Leader Reliability, MOT Pass Rate & Common Faults
Free Ariel Leader car check
Is the Ariel Leader reliable? We analysed 1,148 real MOT tests across 262 vehicles to find out.
Got a specific Ariel Leader? Enter the reg for a free check:
The Ariel Leader is above average for reliability based on real UK MOT data. Common problems include roller brake test the less effective brake control does not achieve an efficiency of 25%., wheel bearings have excessive free play and position lamp does not illuminate immediately when switched on. Here's everything you need to know before buying a used Ariel Leader.
Ariel Leader Number Plates
Number plates registered to a Ariel Leader. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Ariel Leader MOT Pass Rate by Year
How likely is a Ariel Leader to pass its MOT? Here's the pass rate for each registration year, newest first.
Ariel Leader Problems — What Goes Wrong?
The most common reasons a Ariel Leader fails its MOT, ranked by how often they occur. Check for these problems before you buy.
Ariel Leader Mileage — What's Normal?
How many miles does a typical Ariel Leader owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Ariel Leader MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Ariel Leader year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 1965 | 70 | 88.6% | 7,521 | 16,876 | 44,924 |
| 1964 | 90 | 93.3% | 8,616 | 14,418 | 29,192 |
| 1962 | 163 | 93.3% | 3,275 | 12,280 | 30,816 |
| 1961 | 188 | 92.0% | 4,333 | 16,318 | 38,979 |
| 1960 | 168 | 92.9% | 8,512 | 19,101 | 42,214 |
| 1959 | 139 | 93.5% | 8,792 | 27,684 | 40,195 |
How Long Does a Ariel Leader Last?
Based on 262 Ariel Leader vehicles on UK roads.
Ariel Leader Mileage Distribution
Total mileage recorded across all Ariel Leader 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 Ariel Leader
Based on MOT pass rates across all registration years with sufficient test data.
93.5% MOT pass rate from 139 tests
88.6% MOT pass rate from 70 tests
The best year to buy a used Ariel Leader is 1959, which has the highest MOT pass rate at 93.5% across 139 tests. The 1965 model year has the lowest pass rate at 88.6% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the Ariel Leader Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Ariel Leader THIS CAR | 93.2% | 1,148 | 15,411 mi | 67 yrs |
| Ariel Atom | 90.3% | 2,244 | 11,172 mi | 22 yrs |
| Ariel Arrow | 94.2% | 1,653 | 19,651 mi | 66 yrs |
| Ariel Red Hunter | 92.1% | 1,323 | 8,112 mi | 72 yrs |
| Vauxhall Crossland Sri Nav | 89.7% | 602 | 25,852 mi | — yrs |
Compared to the Ariel Atom (90.3% pass rate) and the Ariel Arrow (94.2% pass rate), the Ariel Leader sits in the middle of the pack on MOT reliability.
Found a Ariel Leader 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 Ariel LeaderShould you buy a used Ariel Leader?
The Ariel Leader has an overall MOT pass rate of 93.2% across 1,148 real MOT tests — comfortably above the UK average, which puts it among the more reliable models on UK roads.
The most common problems on the Ariel Leader are roller brake test the less effective brake control does not achieve an efficiency of 25%. (6 recorded failures), wheel bearings have excessive free play (5), and position lamp does not illuminate immediately when switched on (3). 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 Ariel Leader owner drives around 154 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 Ariel Leader models stay on UK roads for around 67 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.