Ford Sierra MOT Check

MOT pass rates, common failures, and reliability data for the Ford Sierra. Check any Sierra by registration number below.

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87.1%

Avg Pass Rate

+2.0%

vs Ford Avg

Year Ranges

Excellent

Reliability

Ford Sierra — MOT Reliability Overview

The Ford Sierra has an average MOT pass rate of 87.1%, which is 2.0 percentage points above the Ford brand average of 85.1%. This is a strong result, indicating that the Sierra is well-engineered and tends to age well mechanically. Owners can expect fewer surprises at MOT time.

The most common reasons a Ford Sierra fails its MOT are vehicle structure corroded to the extent that the rigidity of the assembly is seriously reduced, emissions levels exceed the manufacturer's specified limits, the strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mounting (a 'prescribed area') is significantly reduced or inadequately repaired. If you are preparing your Sierra for its MOT, checking these areas first could save you a retest fee. Our detailed fault analysis includes estimated repair costs for each failure type.

Before buying a used Ford Sierra, we recommend checking the full MOT history, write-off status, outstanding finance, and stolen vehicle status. These checks can be done for free using the registration number.

MOT Pass Rate by Year

How the Ford Sierra performs at MOT across different model years.

2002

Based on 94 vehicles

87.2%Excellent

Ford average: 85.1%

Mileage at 10yr

73k mi

2001

Based on 123 vehicles

80.5%Good

Ford average: 85.1%

Mileage at 10yr

78k mi

2000

Based on 146 vehicles

88.4%Excellent

Ford average: 85.1%

Mileage at 10yr

145k mi

1999

Based on 539 vehicles

83.7%Good

Ford average: 85.1%

Mileage at 10yr

111k mi

1998

Based on 342 vehicles

84.8%Good

Ford average: 85.1%

Mileage at 10yr

104k mi

1997

Based on 486 vehicles

82.1%Good

Ford average: 85.1%

1996

Based on 490 vehicles

85.1%Excellent

Ford average: 85.1%

1995

Based on 373 vehicles

84.2%Good

Ford average: 85.1%

1994

Based on 538 vehicles

86.6%Excellent

Ford average: 85.1%

1993

Based on 320 vehicles

89.1%Excellent

Ford average: 85.1%

Dangerous Defects

0.9%

Retest Rate

4.8%

1992

Based on 1,096 vehicles

82.8%Good

Ford average: 85.1%

Dangerous Defects

1.7%

Retest Rate

11.5%

1991

Based on 1,023 vehicles

88.7%Excellent

Ford average: 85.1%

Dangerous Defects

0.9%

Retest Rate

8.0%

1990

Based on 1,142 vehicles

87.3%Excellent

Ford average: 85.1%

Dangerous Defects

1.0%

Retest Rate

9.7%

1989

Based on 1,149 vehicles

85.5%Excellent

Ford average: 85.1%

Dangerous Defects

1.3%

Retest Rate

11.3%

1988

Based on 719 vehicles

86.4%Excellent

Ford average: 85.1%

Dangerous Defects

0.6%

Retest Rate

11.6%

1987

Based on 1,416 vehicles

92.4%Excellent

Ford average: 85.1%

Dangerous Defects

0.4%

Retest Rate

5.7%

1986

Based on 830 vehicles

95.3%Excellent

Ford average: 85.1%

Dangerous Defects

0.3%

Retest Rate

2.4%

1985

Based on 186 vehicles

84.4%Good

Ford average: 85.1%

Dangerous Defects

1.5%

Retest Rate

6.7%

1984

Based on 465 vehicles

91.8%Excellent

Ford average: 85.1%

Dangerous Defects

0.3%

Retest Rate

6.7%

1983

Based on 251 vehicles

94.8%Excellent

Ford average: 85.1%

Dangerous Defects

0.7%

Retest Rate

2.7%

0

Based on 2,687 vehicles

87.7%Excellent

Ford average: 85.1%

Mileage at 5yr

52k mi

Top MOT Failures — Ford Sierra

The most common reasons a Ford Sierra fails its MOT, aggregated across all year ranges.

Vehicle structure corroded to the extent that the rigidity of the assembly is seriously reduced

3.4%

Emissions levels exceed the manufacturer's specified limits

3.1%

The strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mounting (a 'prescribed area') is significantly reduced or inadequately repaired

2.7%

Emissions levels exceed default limits

1.8%

The strength or continuity of the load bearing structure within 30cm of any seat belt anchorage (a 'prescribed area') is significantly reduced or inadequately repaired

1.3%

Ford Sierra Common Faults & Repair Costs

Other Ford Models

Compare MOT reliability across Ford models.

Ford Grand Tourneo Connect

75.7% pass rate

Ford Puma St-line

95.4% pass rate

Ford Tourneo Connect

89.9% pass rate

Ford Focus Active Edition Mhev

93.1% pass rate

Ford Mondeo

67.1% pass rate

Ford Focus C - Max

96.1% pass rate

Useful MOT Guides

Common MOT Failures

The most common reasons UK vehicles fail their MOT — and how to prepare.

MOT Checklist

Pre-MOT checklist to improve your chances of passing first time.

Advisory vs Failure

Understanding the difference between MOT advisories and failures.

See detailed fault analysis for Ford Sierra

Ford Sierra — Frequently Asked Questions

Common questions about the Ford Sierra MOT and reliability.

What is the MOT pass rate for the Ford Sierra?

The average MOT pass rate for the Ford Sierra is 87.1% compared to the Ford average of 85.1%. Pass rates vary by year — check the year-by-year breakdown on this page for details.

What are the most common MOT failures on a Ford Sierra?

The most common MOT failures on the Ford Sierra are: Vehicle structure corroded to the extent that the rigidity of the assembly is seriously reduced (3.4%), Emissions levels exceed the manufacturer's specified limits (3.1%), The strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mounting (a 'prescribed area') is significantly reduced or inadequately repaired (2.7%). These are the components most likely to cause an MOT failure.

Is the Ford Sierra reliable?

With an average MOT pass rate of 87.1%, the Ford Sierra is rated as "Excellent" for reliability. This is a strong result suggesting good build quality and fewer common defects.

How do I check the MOT history of a Ford Sierra?

Enter the vehicle's registration number in the search box at the top of this page. You will instantly see the complete MOT history including every test result, mileage readings, advisories, and dangerous defects — completely free.

What mileage should I expect on a Ford Sierra?

Typical mileage for the Ford Sierra: 73,407 miles at 10 years. Use these benchmarks when evaluating a used Sierra to spot vehicles with unusually high or low mileage.

Check Your Ford Sierra's MOT History

Enter the registration number for the full MOT history — free and instant.