← All Ford models
Model reliability
Ford Sierra reliability
The Ford Sierra fails its MOT less often than most cars over 10 years old: 15.5% of 2,461 tests failed in 2023, against 39.7% on average.
Over 10 years old
15.5% failed their MOT
From 2,461 MOT tests of Ford Sierras this age.
Where it does worse than other cars this age
Fails 38% more oftenElectrical equipment1.1% vs 0.8%
Checking a Ford Sierra before you buy
Look at the parts above at the viewing, and read the car’s own MOT history: advisories for the same parts suggest the problem is already starting. Sweep’s free check shows every MOT, advisory and mileage reading for a registration.
Source: DVSA anonymised MOT tests 2023 (Open Government Licence v3.0). Failure rates compare this model with all cars in the same age band. Fix prices are typical independent-garage estimates.