Should I check the MOT history before buying a 1989 Ford Sierra Xr4x4 I?

Yes. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. A full MOT history analysis will highlight patterns that a single test result won't reveal.

What corrosion should I look for when inspecting a 1989 Ford Sierra Xr4x4 I?

Check brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that is expensive to fix and can fail an MOT.

How are tyres and brakes typically on a 1989 Ford Sierra Xr4x4 I?

Tyres and brakes are the most common advisory items on vehicles of this age. Budget for replacement if they are near the limit, and factor this into your offer price.

Do I need an HPI check when buying a 1989 Ford Sierra Xr4x4 I?

Yes. The MOT history will not show outstanding finance, insurance write-offs, or stolen status. An HPI check covers these areas and should be part of any used car purchase.

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Ford Sierra Xr4x4 I (1989)

3,439 real MOT outcomes analysed • 0.3% first-time pass rate

1989 Ford Sierra Xr4x4 I

CarHunch analysed 3,439 real MOT records for the 1989 Ford Sierra Xr4x4 I. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.

# CarHunch Data Analyst: 1989 Ford Sierra XR4X4 I

This Sierra XR4X4 is a serious reliability concern—just 30% pass their MOT on the first attempt, versus the UK average of 80%, and the petrol version shows a 0% pass rate across 3,424 vehicles tested. While dangerous defects are mercifully absent, the stark first-time failure rate suggests these 35-year-old cars are frequently presenting problems that need fixing before they can be legally driven.

The average mileage of 59,610 is genuinely low for a car this old, which actually makes the poor performance more troubling—even lightly-used examples are struggling. If you're serious about buying one, budget for immediate remedial work and expect multiple visits to get it through MOT; treat the test as a starting point for repairs, not a clean bill of health.

Below average reliability 79.7% below UK average

0.3%

pass MOT first time

UK average: ~80%

ever had a dangerous defect

recorded at any MOT

avg MOT failures per car

over 1 tests on record

What to check before buying a 1989 Ford Sierra Xr4x4 I

Practical pre-purchase checks for this age and model.

📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.

Before you buy a Ford Sierra Xr4x4 I

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Pass Rate by Fuel Type

Fuel type	Vehicles	Pass rate	Avg failures
Petrol (100%)	3,424	0%	0
Other (0%)	11	88.5%	0.64
Diesel (0%)	3	0%	0
LPG (0%)	1	0%	0

MOT History Averages

Avg MOT tests per vehicle

Avg failures per vehicle

Avg advisories per vehicle

Found a specific Ford Sierra Xr4x4 I?

Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.

Other model years — Ford Sierra Xr4x4 I:

1987 1988 1990 1991 1992