1973 Porsche 911 MOT Pass Rate
Pass rate for 911 models manufactured in 1973, based on 1,663 real MOT test results.
Data from official DVSA MOT testing records
This page shows all 911 cars tested in 1973. Want to see how cars built in 1973 hold up over time?
View 1973 Porsche 911 vintage page → (97.4% current pass rate)1973 Porsche 911 MOT Analysis
The 1973 Porsche 911 has an MOT pass rate of 77.8% based on 1,663 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 48,693 miles on the odometer. With a 22.2% failure rate, the 1973 911 is rated as "Excellent" for MOT reliability.
The leading cause of MOT failure for the 1973 Porsche 911 is Lamps, reflectors and electrical equipment, responsible for 0.1% of failures. 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 range from £5–50.
Top failures specific to 1973 models only. The overall 911 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 | Lamps, Reflectors And Electrical Equipment | 0.1% | 2 |
Failures per 10,000 Miles
avg. 48,693 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 |
|---|---|---|---|
| Lamps & Electrical | 0.02 | 0.1% | 2 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1973 Porsche 911 has an MOT pass rate of 77.8% based on 1,663 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 48,693 miles on the odometer. With a 22.2% failure rate, the 1973 911 is rated as "Excellent" for MOT reliability.
If you own or are considering buying a 1973 Porsche 911, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to lamps, reflectors and electrical equipment: 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. With relatively low average mileage of 48,693 miles, many of these vehicles are still in good mechanical condition.
Lamps, reflectors and electrical equipment — 0.1% of failures
Lamps, reflectors and electrical equipment issues account for 0.1% of MOT failures on 1973 Porsche 911 models. 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.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.