Peugeot 504 Gl MOT Pass Rate
Overall pass rate across all manufacture years, based on 90 real MOT test results. Failure rate: 32.2%.
Data from official DVSA MOT testing records
Peugeot 504 Gl MOT Reliability Overview
The Peugeot 504 Gl is a rare vehicle in the UK, with 90 MOT test results recorded in our database spanning 1 manufacture years. It has an overall MOT pass rate of 67.8% and a failure rate of 32.2%, which is slightly above the UK average of approximately 37%.
Based on this data, the Peugeot 504 Gl earns a "Good" reliability rating. The average Peugeot 504 Gl presents for MOT with approximately 50,288 miles on the clock. The 1971 manufacture year performs best with a 58.1% pass rate.
The most common MOT failure for the Peugeot 504 Gl is Lamps, Reflectors and Electrical Equipment, affecting 22.2% of all tests. Lighting failures cover all external lights: headlights, tail lights, brake lights, indicators, fog lights, and reflectors. A single blown bulb will cause an MOT fail. This is one of the most preventable failure categories. The second most common issue is Brakes at 17.8%. Suspension rounds out the top three at 13.3%. Together, these top 3 failure categories account for a significant portion of all MOT failures for this model.
Top failures across all manufacture years combined. Individual year pages may show different top failures.
What Fails Most
Pass Rate by Manufacture Year
* High Fail Rate badge indicates an MOT pass rate below 65% (failure rate above 35%).
What Fails on This Car?
Click a category to see specific failure items.
View as table
| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Brakes | 33.3% | 30 |
| 2 | Lamps, Reflectors And Electrical Equipment | 27.8% | 25 |
| 3 | Suspension | 20.0% | 18 |
| 4 | Driver's View Of The Road | 14.4% | 13 |
| 5 | Steering | 10.0% | 9 |
| 6 | Exhaust, Fuel And Emissions | 10.0% | 9 |
| 7 | Tyres | 7.8% | 7 |
| 8 | Motorcycle Lighting And Signalling | 5.6% | 5 |
| 9 | Seat Belts And Supplementary Restraint Systems | 3.3% | 3 |
| 10 | Body, Structure And General Items | 3.3% | 3 |
| 11 | Motorcycle Tyres And Wheels | 2.2% | 2 |
| 12 | Motorcycle Brakes | 1.1% | 1 |
| 13 | Motorcycle Fuel And Exhaust | 1.1% | 1 |
| 14 | Motorcycle Steering And Suspension | 1.1% | 1 |
Failures per 10,000 Miles
avg. 50,288 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.
View as table
| Category | Rate / 10K mi | Raw % | Count |
|---|---|---|---|
| Brakes | 6.63 | 33.3% | 30 |
| Lamps & Electrical | 5.52 | 27.8% | 25 |
| Suspension | 3.98 | 20.0% | 18 |
| Visibility | 2.87 | 14.4% | 13 |
| Steering | 1.99 | 10.0% | 9 |
| Emissions & Exhaust | 1.99 | 10.0% | 9 |
| Tyres | 1.55 | 7.8% | 7 |
| Motorcycle lighting and signalling | 1.10 | 5.6% | 5 |
| Seat Belts | 0.66 | 3.3% | 3 |
| Body & Structure | 0.66 | 3.3% | 3 |
| Motorcycle tyres and wheels | 0.44 | 2.2% | 2 |
| Motorcycle brakes | 0.22 | 1.1% | 1 |
| Motorcycle fuel and exhaust | 0.22 | 1.1% | 1 |
| Motorcycle steering and suspension | 0.22 | 1.1% | 1 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Peugeot 504 Gl has 50,288 miles when tested for MOT.
📊 Mileage-Adjusted Failure Rate
How often this car fails MOT relative to how much it's driven — a fairer comparison than raw pass rate.
The Peugeot 504 Gl has a mileage-adjusted failure rate of 6.40% per 10,000 miles driven. The average across all makes is 5.38%, so this model is worse than average.
About Peugeot 504 Gl MOT Data
The Peugeot 504 Gl is a rare vehicle in the UK, with 90 MOT test results recorded in our database spanning 1 manufacture years. It has an overall MOT pass rate of 67.8% and a failure rate of 32.2%, which is slightly above the UK average of approximately 37%.
For Peugeot 504 Gl owners, these results suggest a reliable vehicle that generally passes its MOT without major issues. Focus your pre-MOT checks on lamps, reflectors and electrical equipment and brakes for the best chance of a first-time pass. Use our detailed year-by-year breakdown and failure analysis below to understand how your specific 504 Gl is likely to perform.
Lamps, Reflectors and Electrical Equipment — 22.2% of failures
Lamps, Reflectors and Electrical Equipment issues account for 22.2% of MOT failures on the Peugeot 504 Gl. Lighting failures cover all external lights: headlights, tail lights, brake lights, indicators, fog lights, and reflectors. A single blown bulb will cause an MOT fail. This is one of the most preventable failure categories. Typical repair costs: £5–50. Pre-MOT check: Walk around the car and check every light — headlights (dipped and main beam), side lights, tail lights, brake lights, indicators, hazard lights, reverse light, rear fog light, and number plate lights. Replace any blown bulbs before the test.
Brakes — 17.8% of failures
Brakes issues account for 17.8% of MOT failures on the Peugeot 504 Gl. 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).
Suspension — 13.3% of failures
Suspension issues account for 13.3% of MOT failures on the Peugeot 504 Gl. 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.
Frequently Asked Questions
What is the MOT pass rate for the Peugeot 504 Gl?
Based on 90 (based on limited data) MOT tests in our database, the Peugeot 504 Gl has an overall pass rate of 67.8% (32.2% fail rate).
What are the most common MOT failures on a Peugeot 504 Gl?
The top 3 reasons a Peugeot 504 Gl fails its MOT are: 1. Lamps, Reflectors and Electrical Equipment (22.2%), 2. Brakes (17.8%), 3. Suspension (13.3%). Check these areas before booking your MOT.
Is the Peugeot 504 Gl reliable?
With a 32.2% MOT failure rate, the 504 Gl is more reliable than average compared to the UK average of ~40%.
What should I check before an MOT on my Peugeot 504 Gl?
Based on failure data, focus on: Lamps, Reflectors and Electrical Equipment (22.2%); Brakes (17.8%); Suspension (13.3%). These are the areas most likely to cause a fail. Also check all lights, tyres (minimum 1.6mm tread), and windscreen condition — these are quick wins that apply to all cars.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.