Austin Montego Dl Diesel Turbo (1989)

3,341 real MOT outcomes analysed • 0.4% first-time pass rate

1989 Austin Montego Dl Diesel Turbo

CarHunch analysed 3,341 real MOT records for the 1989 Austin Montego Dl Diesel Turbo. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.

This 1989 Austin Montego diesel turbo is a serious reliability gamble—just 40% pass MOT first time against the UK average of 80%, meaning four in five fail their test. With virtually no dangerous defects recorded across 3,341 vehicles (0.1%), safety isn't the issue; the problem is sheer mechanical wear and decay typical of 35-year-old cars.

The median mileage of 118,000 is reasonable for age, yet the car still racks up an average of 0.01 failures per test, suggesting widespread minor faults rather than catastrophic breakdown. If you're genuinely considering one of these, treat it as a project car that will need multiple repairs before it passes MOT—factor in serious money for sorting it out before use.

Below average reliability 79.6% below UK average
0.4%
pass MOT first time
UK average: ~80%
118,049
typical mileage
93,826–136,591 middle half
0.1%
ever had a dangerous defect
recorded at any MOT
0.01
avg MOT failures per car
over 1 tests on record

What to check before buying a 1989 Austin Montego Dl Diesel Turbo

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 Austin Montego Dl Diesel Turbo

MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.

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Pass Rate by Fuel Type

Fuel type Vehicles Pass rate Avg failures
Diesel (98%) 3,279 0.5% 0.01
Petrol (2%) 62 0% 0

Mileage Distribution

Most 1989 Austin Montego Dl Diesel Turbo vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.

93,826
low mileage
118,049
typical
136,591
high mileage

Half of all 1989 Austin Montego Dl Diesel Turbo vehicles fall between 93,826 and 136,591 miles.

MOT History Averages

1
Avg MOT tests per vehicle
0.01
Avg failures per vehicle
0
Avg advisories per vehicle

Found a specific Austin Montego Dl Diesel Turbo?

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

UK

Other model years — Austin Montego Dl Diesel Turbo:

1990