1977 Land Rover 109" - 6 Cyl MOT Pass Rate
Pass rate for 109" - 6 Cyl models manufactured in 1977, based on 30 real MOT test results.
Data from official DVSA MOT testing records
1977 Land Rover 109" - 6 Cyl MOT Analysis
The 1977 Land Rover 109" - 6 Cyl has an MOT pass rate of 50.0% based on 30 tests — significantly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 45,250 miles on the odometer. With a 50.0% failure rate, the 1977 109" - 6 Cyl is rated as "Very Poor" for MOT reliability.
The leading cause of MOT failure for the 1977 Land Rover 109" - 6 Cyl is Suspension, responsible for 10.0% of failures. Suspension failures typically involve worn bushes, leaking shock absorbers, broken coil springs, and damaged suspension arms. These affect ride quality, tyre wear, and road holding. Typical repair costs range from £200–500. Brakes is the second most common issue at 6.7%. Exhaust, Fuel and Emissions follows at 3.3%.
Top failures specific to 1977 models only. The overall 109" - 6 Cyl page may show different rankings.
What Fails Most
What Fails on This Car?
Click a category to see specific failure items.
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| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Suspension | 10.0% | 3 |
| 2 | Brakes | 6.7% | 2 |
| 3 | Exhaust, Fuel And Emissions | 3.3% | 1 |
| 4 | Lamps, Reflectors And Electrical Equipment | 3.3% | 1 |
Failures per 10,000 Miles
avg. 45,250 miFor every 10,000 miles driven, this shows what percentage of MOT tests fail for each category. This accounts for how far cars are actually driven, not just raw pass/fail counts.
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| Category | Rate / 10K mi | Raw % | Count |
|---|---|---|---|
| Suspension | 2.21 | 10.0% | 3 |
| Brakes | 1.47 | 6.7% | 2 |
| Emissions & Exhaust | 0.74 | 3.3% | 1 |
| Lamps & Electrical | 0.74 | 3.3% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1977 Land Rover 109" - 6 Cyl has an MOT pass rate of 50.0% based on 30 tests — significantly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 45,250 miles on the odometer. With a 50.0% failure rate, the 1977 109" - 6 Cyl is rated as "Very Poor" for MOT reliability.
If you own or are considering buying a 1977 Land Rover 109" - 6 Cyl, be prepared for above-average maintenance costs. Before your MOT, pay particular attention to suspension: Look for uneven tyre wear, listen for clunking over bumps, and check if the car pulls to one side. A bouncy ride suggests worn shock absorbers. Visually inspect coil springs for cracks. With relatively low average mileage of 45,250 miles, many of these vehicles are still in good mechanical condition.
Suspension — 10.0% of failures
Suspension issues account for 10.0% of MOT failures on 1977 Land Rover 109" - 6 Cyl models. Suspension failures typically involve worn bushes, leaking shock absorbers, broken coil springs, and damaged suspension arms. These affect ride quality, tyre wear, and road holding. Typical repair costs: £200–500. Pre-MOT check: Look for uneven tyre wear, listen for clunking over bumps, and check if the car pulls to one side. A bouncy ride suggests worn shock absorbers. Visually inspect coil springs for cracks.
Brakes — 6.7% of failures
Brakes issues account for 6.7% of MOT failures on 1977 Land Rover 109" - 6 Cyl models. Brake-related failures include worn brake pads, corroded brake discs, leaking brake lines, and faulty brake servos. These are safety-critical components — any brake deficiency will result in an MOT fail. Typical repair costs: £150–400. Pre-MOT check: Listen for squealing or grinding noises. Check brake pedal feel — if it feels spongy or goes to the floor, have the system inspected immediately. Look at brake pad thickness through the wheel spokes (minimum 3mm).
Exhaust, Fuel and Emissions — 3.3% of failures
Exhaust, Fuel and Emissions issues account for 3.3% of MOT failures on 1977 Land Rover 109" - 6 Cyl models. Emissions failures occur when exhaust gases exceed legal limits for carbon monoxide (CO), hydrocarbons (HC), or particulate matter (diesel). Common causes include faulty oxygen sensors, clogged catalytic converters, or DPF issues on diesel vehicles. Typical repair costs: £100–1,000+. Pre-MOT check: If the engine management light is on, get it diagnosed before the MOT. For diesel cars, ensure the DPF has completed a regeneration cycle. Regular servicing and using premium fuel before the test can help.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.