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Vauxhall Unknown (1984)

1,517 real MOT outcomes analysed • 0.2% first-time pass rate

1984 Vauxhall Unknown

CarHunch analysed 1,517 real MOT records for the 1984 Vauxhall Unknown. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.

Below average reliability 79.8% below UK average
0.2%
pass MOT first time
UK average: ~80%
33,881
typical mileage
33,881–33,881 middle half
0%
ever had a dangerous defect
recorded at any MOT
0
avg MOT failures per car
over 1 tests on record

What to check before buying a 1984 Vauxhall Unknown

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 Vauxhall Unknown

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

Inspection ClickMechanic Have a qualified mechanic check this car before you commit to buying →

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Pass Rate by Fuel Type

Fuel type Vehicles Pass rate Avg failures
Petrol (83%) 1,253 0.1% 0
Diesel (17%) 263 0.4% 0
Other (0%) 1 50% 1

Mileage Distribution

Most 1984 Vauxhall Unknown 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.

33,881
low mileage
33,881
typical
33,881
high mileage

Half of all 1984 Vauxhall Unknown vehicles fall between 33,881 and 33,881 miles.

MOT History Averages

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

Most Common MOT Issues — 1984 Vauxhall Unknown

Based on actual MOT test records for this model. Percentage shows how often each item appears across all vehicles in this cohort.

  • 100%
    Offside Front Brake pipe slightly corroded
  • 100%
    Offside Front Suspension component mounting prescribed area is corroded but not considered excessive
  • 100%
    Nearside Rear Suspension component mounting prescribed area is corroded but not considered excessive
  • 100%
    Nearside Rear Brake pipe slightly corroded
  • 100%
    Nearside Front Brake pipe modified but not seriously weakened
  • 100%
    Centre Rear Suspension component mounting prescribed area is corroded but not considered excessive
  • 100%
    Nearside Front Suspension component mounting prescribed area is corroded but not considered excessive
  • 100%
    Under side of vehicle corroded in various places

Data covers a 3-year window centred on 1984. Counts include advisories and failures.

Found a specific Vauxhall Unknown?

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

UK

Other model years — Vauxhall Unknown:

1980 1981 1982 1983 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997