Used car guide

2005 Ford Mustang: common problems and MOT failures

What MOT testers find on the Ford Mustang first registered in 2005: we looked at the 997 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.

997MOTs of 2005 cars, done in 2023–2025
81%pass first time (all 2005 cars: 57%)
3,400typical miles a year
2.4×the usual rate for transmission oil leaks

What goes wrong more than usual on a 2005 Ford Mustang?

Parts flagged at MOT more often on the 2005 Ford Mustang than on all cars registered in 2005.

  • Transmission oil leaks2.4× usual
    Ford Mustang
    3.4% All 2005 cars
    1.4%

    Failed outright at MOT: 0%, against 0% of all 2005 cars. The rest were advisories or minor defects.

    Rough price £80–£600 our estimate

    At the viewing: Look under the engine and where the car is usually parked for fresh oil. Ask whether the leak has been looked at.

Better than most

Tread depth: 6.3% here, against 20.7% of all 2005 cars. Engine oil leaks: 3.3% here, against 13.4% of all 2005 cars.

Common 2005 Ford Mustang MOT failures and advisories

The share of 2005 Ford Mustang MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

  • Suspension
    24% of testsRough price £120–£400

    At the viewing: Listen for knocks over speed bumps, and look behind each front wheel for a snapped coil spring.

  • Brakes
    18% of testsRough price £150–£350

    At the viewing: Look for a lip on the disc edges and feel for judder or pulling when braking firmly from about 40mph.

  • Lights and electrics
    16% of testsRough price £10–£80

    At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.

  • Tyres
    14% of testsRough price £70–£150

    At the viewing: Check the tread on all four tyres, including the inside edges, and look for cracks or bulges.

  • Oil and fluid leaks
    7% of testsRough price £80–£600

    At the viewing: Look under the engine and on the ground where the car is usually parked for fresh oil or fluid.

  • Wipers, windscreen and mirrors
    5% of testsRough price £15–£250

    At the viewing: Check for chips in the driver's view, and test the wipers and washers.

Questions to ask the seller before buying a 2005 Ford Mustang

Ask before you travel to see it. A seller who knows the car will have answers, and receipts.

  1. Any recent work on the transmission oil leaks? (Flagged at MOT 2.4× as often on the 2005 Ford Mustang as on other cars the same age.)
  2. Can I see the service history and receipts for any big jobs?

Looking at a Ford Mustang?

Check the actual car: its own MOT history, mileage and what to ask the seller. Free, no sign-up.

Other years

Every year of the Ford Mustang compared

YearMOT testsMost flagged
2026–Too new for MOT data
2025–Too new for MOT data
2024–Too new for MOT data
2023109Tyres 21%
20225,384Tyres 24%
20216,040Tyres 26%
20203,169Tyres 19%
20193,619Tyres 20%
20186,227Tyres 23%
20175,628Tyres 23%
20167,630Tyres 24%
20151,035Tyres 21%
2014325Lights and electrics 12%
2013333Lights and electrics 12%
2012292Tyres 15%
2011250Lights and electrics 18%
2010319Suspension 16%
2009285Suspension 22%
2008651Suspension 21%
2007875Suspension 22%
2006829Suspension 23%
2004186Brakes 25%
2003148Brakes 24%
2001128Brakes 23%
2000154Suspension 31%
1999144Suspension 24%
1997108Brakes 26%
1996194Brakes 29%
1995204Brakes 40%
1994195Brakes 35%
1978–Too few tests
1972–Too few tests

Where this comes from: the DVSA's anonymised results for every MOT test done in Great Britain during 2023–2025, counting the MOTs of Ford Mustang cars first registered in 2005. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score