1986 Daimler Ds420 MOT Pass Rate
Pass rate for Ds420 models manufactured in 1986, based on 63 real MOT test results.
Data from official DVSA MOT testing records
1986 Daimler Ds420 MOT Analysis
The 1986 Daimler Ds420 has an MOT pass rate of 66.7% based on 63 tests — slightly above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 87,719 miles on the odometer. With a 33.3% failure rate, the 1986 Ds420 is rated as "Good" for MOT reliability.
The leading cause of MOT failure for the 1986 Daimler Ds420 is Suspension, responsible for 52.4% 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. Seat belts and supplementary restraint systems is the second most common issue at 14.3%. Body, chassis, structure follows at 9.5%.
Top failures specific to 1986 models only. The overall Ds420 page may show different rankings.
What Fails Most
What Fails on This Car?
Click a category to see specific failure items.
View as table
| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Suspension | 52.4% | 33 |
| 2 | Seat Belts And Supplementary Restraint Systems | 14.3% | 9 |
| 3 | Body, Chassis, Structure | 9.5% | 6 |
| 4 | Brakes | 9.5% | 6 |
| 5 | Lamps, Reflectors And Electrical Equipment | 4.8% | 3 |
| 6 | Visibility | 4.8% | 3 |
Failures per 10,000 Miles
avg. 87,719 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 | 5.97 | 52.4% | 33 |
| Seat Belts | 1.63 | 14.3% | 9 |
| Body & Structure | 1.09 | 9.5% | 6 |
| Brakes | 1.09 | 9.5% | 6 |
| Lamps & Electrical | 0.54 | 4.8% | 3 |
| Visibility | 0.54 | 4.8% | 3 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1986 Daimler Ds420 has an MOT pass rate of 66.7% based on 63 tests — slightly above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 87,719 miles on the odometer. With a 33.3% failure rate, the 1986 Ds420 is rated as "Good" for MOT reliability.
If you own or are considering buying a 1986 Daimler Ds420, you can expect reliable MOT performance overall. 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 an average mileage of 87,719 miles, these vehicles are in the higher-mileage bracket where wear-related failures become more common.
Suspension — 52.4% of failures
Suspension issues account for 52.4% of MOT failures on 1986 Daimler Ds420 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.
Seat belts and supplementary restraint systems — 14.3% of failures
Seat belts and supplementary restraint systems issues account for 14.3% of MOT failures on 1986 Daimler Ds420 models. Seat belt failures include frayed or cut webbing, faulty retractors, buckles that don't latch properly, and missing or damaged anchorages. All fitted seat belts must be functional. Typical repair costs: £50–200 per belt. Pre-MOT check: Pull each seat belt fully out and check for fraying, cuts, or fading. Ensure each belt retracts smoothly and the buckle clicks securely. Check the pre-tensioner warning light on the dashboard.
Body, chassis, structure — 9.5% of failures
Body, chassis, structure issues account for 9.5% of MOT failures on 1986 Daimler Ds420 models. Body and structure failures include excessive corrosion, sharp edges, loose panels, and damage to the vehicle frame. Rust is the primary concern, especially on older vehicles or those exposed to road salt. Typical repair costs: £100–500+. Pre-MOT check: Inspect sills, wheel arches, door bottoms, and the chassis for rust. Surface rust is acceptable but structural corrosion or holes will fail. Check that all doors, bonnet, and boot close securely.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.