Mutt Mastiff 125 Reliability, MOT Pass Rate & Common Faults
Free Mutt Mastiff 125 car check
Is the Mutt Mastiff 125 reliable? We analysed 339 real MOT tests across 152 vehicles to find out.
Got a specific Mutt Mastiff 125? Enter the reg for a free check:
The Mutt Mastiff 125 is above average for reliability based on real UK MOT data. Here's everything you need to know before buying a used Mutt Mastiff 125.
Mutt Mastiff 125 Number Plates
Number plates registered to a Mutt Mastiff 125. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Mutt Mastiff 125 MOT Pass Rate by Year
How likely is a Mutt Mastiff 125 to pass its MOT? Here's the pass rate for each registration year, newest first.
Mutt Mastiff 125 Common Faults & Problems
These are the most common serious faults found on Mutt Mastiff 125 models during MOT testing — flagged as dangerous or major failures that need immediate attention.
Mutt Mastiff 125 Mileage — What's Normal?
How many miles does a typical Mutt Mastiff 125 owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Mutt Mastiff 125 MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Mutt Mastiff 125 year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 2022 | 53 | 75.5% | 768 | 2,244 | 4,477 |
| 2021 | 141 | 72.3% | 1,278 | 3,136 | 5,433 |
| 2020 | 132 | 78.8% | 3,048 | 5,166 | 7,938 |
How Long Does a Mutt Mastiff 125 Last?
Based on 152 Mutt Mastiff 125 vehicles on UK roads.
Mutt Mastiff 125 Mileage Distribution
Total mileage recorded across all Mutt Mastiff 125 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 Mutt Mastiff 125
Based on MOT pass rates across all registration years with sufficient test data.
78.8% MOT pass rate from 132 tests
72.3% MOT pass rate from 141 tests
The best year to buy a used Mutt Mastiff 125 is 2020, which has the highest MOT pass rate at 78.8% across 132 tests. The 2021 model year has the lowest pass rate at 72.3% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the Mutt Mastiff 125 Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Mutt Mastiff 125 THIS CAR | 75.8% | 339 | 3,944 mi | — yrs |
| Mutt Mongrel 125 | 75.2% | 5,007 | 4,659 mi | 10 yrs |
| Mutt Fat Sabbath 125 | 76% | 896 | 3,448 mi | — yrs |
| Mutt Qm 250-2X Mongrel 250 | 85.8% | 591 | 3,535 mi | — yrs |
| Renault Kangoo ML19 Start Blue DCI | 77.4% | 610 | 46,231 mi | — yrs |
Compared to the Mutt Mongrel 125 (75.2% pass rate) and the Mutt Fat Sabbath 125 (76.0% pass rate), the Mutt Mastiff 125 sits in the middle of the pack on MOT reliability.
Found a Mutt Mastiff 125 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 Mutt Mastiff 125Should you buy a used Mutt Mastiff 125?
The Mutt Mastiff 125 has an overall MOT pass rate of 75.8% across 339 real MOT tests — comfortably above the UK average, which puts it among the more reliable models on UK roads.
On the safety side, the most frequently flagged dangerous fault is brake pad(s) less than 1.0 mm thick. Dangerous faults cause an immediate MOT failure and mean the vehicle is not roadworthy until repaired. If you're viewing a Mutt Mastiff 125 with an expired or recently passed MOT, ask the seller whether any dangerous faults were found and fixed during the last test.
A typical Mutt Mastiff 125 owner drives around 871 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.
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.