Porsche 924 (1985)

677 real MOT outcomes analysed • 40.3% first-time pass rate

1985 Porsche 924

CarHunch analysed 677 real MOT records for the 1985 Porsche 924. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.

Below average reliability 39.7% below UK average
40.3%
pass MOT first time
UK average: ~80%
45,720
typical mileage
26,105–70,893 middle half
12.7%
ever had a dangerous defect
recorded at any MOT
1.54
avg MOT failures per car
over 5.4 tests on record

What to check before buying a 1985 Porsche 924

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 Porsche 924

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
Petrol (100%) 674 40.2% 1.54
Other (0%) 3 50% 0.67

Mileage Distribution

Most 1985 Porsche 924 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.

26,105
low mileage
45,720
typical
70,893
high mileage

Half of all 1985 Porsche 924 vehicles fall between 26,105 and 70,893 miles.

1985 Porsche 924 — Still on the Road

Numbers are declining — 49 vehicles still getting MOTs in 2025 (48% of peak).

102 49 2014 2025

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2025.

MOT History Averages

5.4
Avg MOT tests per vehicle
1.54
Avg failures per vehicle
6.4
Avg advisories per vehicle

Most Common MOT Issues — 1985 Porsche 924

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

  • 42.3%
    Windscreen washer provides insufficient washer liquid
  • 38.3%
    Nearside Rear wheel bearing has slight play
  • 37.8%
    Offside Rear wheel bearing has slight play
  • 32.9%
    Parking brake: efficiency below requirements
  • 28%
    Exhaust emissions carbon monoxide content excessive
  • 23.9%
    Oil leak
  • 21%
    Nearside Front Brake pipe slightly corroded
  • 19%
    Nearside Front wheel bearing has slight play

Data covers a 3-year window centred on 1985. Counts include advisories and failures.

Found a specific Porsche 924?

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

UK

Other model years — Porsche 924:

1980 1981 1982 1983 1984 1986 1987 1988