Ford Mustang Reliability: Common Problems and Years to Avoid
What the Ford Mustang fails its MOT on, with rough repair costs, and how each model year's MOT pass rate compares with other cars of the same age. Based on 29,930 MOT tests across 29 model years (DVSA data for tests carried out in 2024, retests included).
Segment: electric | Fuel: Electric, Petrol
89%
Ford Mustang pass rate
85%
Ford average
82%
All-model average
The Ford Mustang has an average MOT pass rate of 89%, which is 4 points above the Ford average and 7 points above the average across all models in our data. Newer Ford Mustangs pass their MOT more often than older ones, by 4 percentage points on average, which is mostly down to age and wear.
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What the Ford Mustang Fails Its MOT On
Of the 2,003 MOT tests on the Ford Mustang that failed at the first attempt in 2025, the share that failed on each part of the test, next to the share for all cars and vans of the same ages. A test that failed on two areas counts in both.
Brakes
39%Cars and vans the same age: 21% (the Mustang fails on this more often) · Typical repair £80-£450
Tyres
26%Cars and vans the same age: 26% · Typical repair £50-£300
Lights and electrics
22%Cars and vans the same age: 32% (the Mustang fails on this less often) · Typical repair £15-£200
Windscreen, wipers and mirrors
19%Cars and vans the same age: 16% · Typical repair £10-£350
Suspension
15%Cars and vans the same age: 26% (the Mustang fails on this less often) · Typical repair £150-£600
The 3 single faults it failed on most
- Parking brake efficiency below requirements (19% of failed tests, brakes)
- Parking brake inoperative on one side (11% of failed tests, brakes)
- Tyre has ply or cords exposed (11% of failed tests, tyres)
Source: CarCostCheck analysis of DVSA anonymised MOT test results and failure items for 2025: first attempt at each MOT, fail and pass-after-repair defects, DVSA's defect categories (names shortened). Repair costs are rough UK ranges, not quotes. Method and national figures: MOT failure reasons 2025.
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Ford Mustang Years to Avoid
Every car in the 2024 MOT data was tested at the same age as the other cars first registered that year, so each Mustang year is compared with all cars from the same year. Years with 1,000+ tests that were at least three years old are included.
Failed more often than cars their age
No year passed 3 or more points less often than other cars of the same age.
Passed more often than cars their age
- 2017: 90% passed, against 87% for all 2017 cars (3 points higher, 5,161 tests)
A lower pass rate means that year failed its MOT more often in 2024; it does not mean every car from that year is bad. Old cars still on the road are often the best-kept ones, which can lift the pass rates of the oldest years. How a car has been looked after matters more, so check the MOT history of the car you are looking at.
Ford Mustang Reliability by Year
MOT pass rate for each model year, from DVSA data for tests carried out in 2024 (retests included). Newer cars usually pass more often simply because they are younger. All Cars is the pass rate of every car first registered that year, with the gap in points. Highest and lowest are marked among years with 100+ tests that were at least three years old when tested. Fuel and engine size are a guide only.
| Year | Fuel | Engine | Pass Rate | Fail Rate | All Cars |
|---|---|---|---|---|---|
| 2022 | Electric | 0.0L | 96% | 4% | - |
| 2021 | Petrol | 2.3L | 91% | 7% | - |
| 2020 | Petrol | 2.3L | 92% | 8% | 92% (0) |
| 2019 | Petrol | 2.3L | 89% | 11% | 91% (-2) |
| 2018 | Petrol | 2.3L | 90% | 9% | 89% (+1) |
| 2017 | Petrol | 2.3L | 90% | 10% | 87% (+3) |
| 2016 | Petrol | 2.3L | 88% | 12% | 86% (+2) |
| 2015 | Petrol | 2.3L | 88% | 11% | - |
| 2014 | Petrol | 3.7L | 90% | 9% | - |
| 2013 | Petrol | 5.0L | 90% | 9% | - |
| 2012 | Petrol | 3.7L | 88% | 12% | - |
| 2011 | Petrol | 3.7L | 82% | 13% | - |
| 2010 | Petrol | 4.6L | 86% | 13% | - |
| 2009 | Petrol | 4.0L | 88% | 12% | - |
| 2008 | Petrol | 4.7L | 88% | 11% | - |
| 2007 | Petrol | 4.6L | 87% | 13% | - |
| 2006 | Petrol | 4.6L | 86% | 12% | - |
| 2005 | Petrol | 4.6L | 88% | 12% | - |
| 2004 | Petrol | 5.0L | 82% | 18% | - |
| 2003 | Petrol | 4.6L | 85% | 15% | - |
| 2002 | Petrol | 4.6L | 92% | 5% | - |
| 2001 | Petrol | 4.6L | 85% | 13% | - |
| 2000 | Petrol | 3.8L | 76% | 24% | - |
| 1999 | Petrol | 0.0L | 88% | 12% | - |
| 1998 | Petrol | 4.6L | 90% | 10% | - |
| 1997 | Petrol | 4.6L | 84% | 16% | - |
| 1996 | Petrol | 3.8L | 84% | 15% | - |
| 1995 | Petrol | 3.8L | 84% | 16% | - |
| 1994 | Petrol | 3.8L | 84% | 15% | - |
Ford Mustang Running Costs
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Ford Mustang FAQ
What are the most common Ford Mustang problems?
In 2025, MOT tests on the Ford Mustang that failed at the first attempt most often failed on brakes (39% of the 2,003 failed tests), tyres (26%) and lights and electrics (22%). The single most common fault was "Parking brake efficiency below requirements" (19%). Across 29,930 MOT tests (DVSA MOT data for tests in 2024, retests included), 89% ended in a pass.
Is the Ford Mustang reliable?
The Ford Mustang has an average MOT pass rate of 89%, from 29,930 MOT tests (DVSA MOT data for tests in 2024, retests included). Comparing each model year with all cars first registered the same year, so that age is allowed for, it passed within 1 point of other cars of the same age, so about average for its age.
Which Ford Mustang years should I avoid?
No Ford Mustang year with 1,000+ tests passed 3 or more points less often than all cars first registered the same year (DVSA MOT data for tests in 2024, retests included). The years that passed most often for their age were the 2017 (90% of 5,161 tests passed, against 87% for all 2017 cars). A year's pass rate does not tell you about one car, so check the MOT history of the car you are buying.
How much does it cost to fix common Ford Mustang faults?
As a rough guide, brake work on a Ford Mustang typically costs £80-£450 and suspension repairs £150-£600, while exhaust and emissions fixes can cost £80-£800. Lighting and wiper fixes are usually under £200.
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Other Ford Models
Common problems pages for other Ford models