FORD SIERRA (1991)
Running costs, common problems, and reliability data based on 801 real MOT tests in 2024.
MOT Pass Rate
88%
Total Tests (2024)
801
Avg Mileage
51,762 mi
Est. Annual Cost
£1,867
Is the 1991 FORD SIERRA reliable?
Good reliability. Occasional issues but generally solid. That's 6 points above the national average of 82%.
At 33 years old, 88% of FORD SIERRAs from 1991 passed their MOT first time in 2024. That's based on 801 tests across the UK. The average mileage at this age is 51,762 miles.
How does the 1991 FORD SIERRA compare?
Mileage Analysis
The average 1991 FORD SIERRA has 51,762 miles on the clock, which is significantly below the expected 244,200 miles for a 33-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.
Best year to buy a FORD SIERRA?
The most reliable year is the 1990 model with a 88% MOT pass rate, while the 1992 model has the lowest at 84%. The 1991 sits between the two at 88%.
How much does a 1991 FORD SIERRA cost to run?
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.
FORD SIERRA by Year
Checking a specific FORD SIERRA?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 1991 FORD SIERRA
The 1991 FORD SIERRA is a family car with a 1998cc petrol engine. 801 of these vehicles were MOT tested in 2024, making it a less common model in the UK market. It ranks in the top 22% of all 1991 cars for reliability.
With an average of 51,762 miles at 33 years old, FORD SIERRA owners tend to use this car less than the typical driver. Very low mileage could mean the car has been garaged or used only for short trips, which can cause its own issues like battery drain and moisture buildup.
1991 FORD SIERRA Fuel Costs
The 1998cc petrol engine offers a reasonable balance between performance and economy. Expect around 36 mpg in mixed driving, which works out to roughly £1,327 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).
What does it cost to own a 1991 FORD SIERRA?
Total estimated annual running cost is £1,867 (£156/month), broken down as £1327 fuel, £135 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 88% pass rate. Keeping on top of servicing will help avoid surprises.
FORD SIERRA Reliability Trend
The FORD SIERRA has maintained consistent MOT pass rates across model years, varying by only 3 percentage points.
Buying a Used 1991 FORD SIERRA
At 33 years old, the FORD SIERRA is firmly in budget territory. Purchase prices are low, but check for rust, worn suspension bushes, and electrical gremlins. A full service history is especially valuable at this age. If you're flexible on year, the 1990 model has the highest pass rate at 88%.
Alternatives to the 1991 FORD SIERRA
The FORD SIERRA is actually the most reliable option among similar petrol family cars from this era. Here are comparable petrol cars with similar engines:
- VOLKSWAGEN GOLF (1991) 80% pass rate (-8%) from 5,191 tests
- BMW 3 SERIES (1990) 84% pass rate (-4%) from 3,316 tests
- FORD ESCORT (1990) 85% pass rate (-3%) from 2,672 tests
- MAZDA MX-5 (1991) 78% pass rate (-10%) from 1,798 tests