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Dutton Phaeton Reliability, MOT Pass Rate & Common Faults

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Is the Dutton Phaeton reliable? We analysed 594 real MOT tests across 107 vehicles to find out.

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Data last updated: · Based on 594 real MOT tests
MOT Pass Rate
80.1%
Typical Mileage
15,599mi
Annual Mileage
265mi/yr
Est. Lifespan
45yrs

The Dutton Phaeton is above average for reliability based on real UK MOT data. Common problems include parking brake: efficiency below requirements, stop lamp not working and brake binding. Here's everything you need to know before buying a used Dutton Phaeton.

Dutton Phaeton Number Plates

Number plates registered to a Dutton Phaeton. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.

Dutton Phaeton MOT Pass Rate by Year

How likely is a Dutton Phaeton to pass its MOT? Here's the pass rate for each registration year, newest first.

71.6%
1989
80.4%
1984
78.9%
1981

Dutton Phaeton Problems — What Goes Wrong?

The most common reasons a Dutton Phaeton fails its MOT, ranked by how often they occur. Check for these problems before you buy.

Parking brake: efficiency below requirements 19
Stop lamp not working 18
brake binding 13
Headlamp not working on main beam 11
parking brake recording little or no effort 9
Suspension arm has excessive play in a ball joint 9
Windscreen washer provides insufficient washer liquid 8
Brakes imbalanced across an axle 7
Headlamp aim too high 7
Parking brake lever has no reserve travel 7

Dutton Phaeton Mileage — What's Normal?

How many miles does a typical Dutton Phaeton owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.

Low usage
104 mi/yr
Typical
265 mi/yr
Average
1,218 mi/yr
Heavy usage
831 mi/yr

Dutton Phaeton MOT Data by Registration Year

Full breakdown of pass rate and mileage for each year. Use this to compare the Dutton Phaeton year you're looking at.

Year Tests Pass Rate Low Mi. Typical Mi. High Mi.
1989 67 71.6% 10,456 12,907 22,782
1984 56 80.4% 2,828 8,705 15,190
1981 57 78.9% 2,156 65,175 79,920

How Long Does a Dutton Phaeton Last?

Based on 107 Dutton Phaeton vehicles on UK roads.

Average
29.9 years
Median
29.0 years
Estimated max lifespan
45 years

Dutton Phaeton Mileage Distribution

Total mileage recorded across all Dutton Phaeton MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.

Median
15,599 mi
75th Percentile
44,689 mi
95th Percentile
80,378 mi
Max Recorded
212,329 mi

Best Year to Buy a Used Dutton Phaeton

Based on MOT pass rates across all registration years with sufficient test data.

Best year
1984

80.4% MOT pass rate from 56 tests

Year to avoid
1989

71.6% MOT pass rate from 67 tests

The best year to buy a used Dutton Phaeton is 1984, which has the highest MOT pass rate at 80.4% across 56 tests. The 1989 model year has the lowest pass rate at 71.6% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.

How Does the Dutton Phaeton Compare?

MOT pass rates compared to similar models. Click any model for the full breakdown.

Model Pass Rate Tests Typical Mileage Lifespan
Dutton Phaeton THIS CAR 80.1% 594 15,599 mi 45 yrs
Yamaha Rxs 76.5% 935 21,869 mi 38 yrs
Land Rover R Rover Velar R-dyn S PHEV A 83.5% 266 33,120 mi — yrs
Audi Q7 Sport 50 TDI MHEV QUATTRO A 91.7% 564 38,120 mi — yrs
MG Hs SE PHEV Auto 96.9% 288 26,292 mi — yrs

Compared to the Yamaha Rxs (76.5% pass rate) and the Land Rover R Rover Velar R-dyn S PHEV A (83.5% pass rate), the Dutton Phaeton sits in the middle of the pack on MOT reliability.

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Should you buy a used Dutton Phaeton?

The Dutton Phaeton has an overall MOT pass rate of 80.1% across 594 real MOT tests — comfortably above the UK average, which puts it among the more reliable models on UK roads.

The most common problems on the Dutton Phaeton are parking brake: efficiency below requirements (19 recorded failures), stop lamp not working (18), and brake binding (13). These are the faults most likely to cause an MOT failure on this model, so check for them carefully on any test drive or pre-purchase inspection. Many are wear-and-tear items that can be budgeted for, but a car that's already failing on multiple fronts may signal neglected maintenance.

A typical Dutton Phaeton owner drives around 265 miles per year. If the car you're looking at is significantly above this, expect more wear on suspension, brakes and tyres. If it's well below, the vehicle may have been sitting unused — check for perished rubber, corroded discs and stale fluids.

In terms of longevity, most Dutton Phaeton models stay on UK roads for around 45 years — a strong showing that suggests solid build quality and readily available parts. If you're buying one that's already approaching that window, the data suggests it has plenty of life left provided it's been maintained.

Before committing to a purchase, we recommend running a full vehicle history check on the specific car. This will reveal any outstanding finance, stolen markers, write-off history and mileage discrepancies that the seller may not disclose — and that the MOT data alone can't tell you.

Dutton Phaeton — Frequently Asked Questions

Is the Dutton Phaeton reliable?
Based on 594 MOT tests, the Dutton Phaeton has a 80.1% pass rate — above the UK average, suggesting good reliability.
What are the common problems on a Dutton Phaeton?
The most common MOT failures are parking brake: efficiency below requirements, stop lamp not working, and brake binding. Check these on any test drive.
How many miles does a Dutton Phaeton do per year?
The typical Dutton Phaeton does around 265 miles per year. Anything significantly above or below this is worth investigating.
How long does a Dutton Phaeton last?
Most Dutton Phaeton models stay on UK roads for around 45 years based on our analysis of 107 vehicles.
Should I get a vehicle check before buying a Dutton Phaeton?
Yes. An MOT pass rate tells you about the model in general, but a vehicle history check reveals the specific car's finance, stolen, write-off and mileage history — things the seller may not disclose.
What is the best year to buy a Dutton Phaeton?
Based on MOT pass rates, the best year to buy a used Dutton Phaeton is 1984 with a 80.4% pass rate across 56 tests.