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Aeon Cobra Reliability, MOT Pass Rate & Common Faults

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Is the Aeon Cobra reliable? We analysed 503 real MOT tests across 195 vehicles to find out.

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Data last updated: · Based on 503 real MOT tests
MOT Pass Rate
84.9%
Typical Mileage
1,372mi
Annual Mileage
209mi/yr
Est. Lifespan
22yrs

The Aeon Cobra is above average for reliability based on real UK MOT data. Common problems include registration plate missing, headlamp not working on dipped beam and headlamp not working on main beam. Here's everything you need to know before buying a used Aeon Cobra.

Aeon Cobra Number Plates

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

Aeon Cobra MOT Pass Rate by Year

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

92%
2021
87.8%
2020
87.5%
2019
91.1%
2018
79.6%
2004

Aeon Cobra Problems — What Goes Wrong?

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

registration plate missing 6
Headlamp not working on dipped beam 5
Headlamp not working on main beam 5
Axle king pin has excessive play in pin and/or bush adversely affecting the steering 4
Obligatory mirror missing 4
position lamp(s) not working 4
Parking brake is not capable of being maintained in operation by direct mechanical action only 4

Aeon Cobra Common Faults & Problems

These are the most common serious faults found on Aeon Cobra models during MOT testing — flagged as dangerous or major failures that need immediate attention.

Parking brake efficiency less than 50% of the required value 7

Aeon Cobra Mileage — What's Normal?

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

Low usage
70 mi/yr
Typical
209 mi/yr
Average
482 mi/yr
Heavy usage
552 mi/yr

Aeon Cobra MOT Data by Registration Year

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

Year Tests Pass Rate Low Mi. Typical Mi. High Mi.
2021 75 92.0% 1,048 1,440 1,984
2020 82 87.8% 629 1,091 1,813
2019 64 87.5% 1,124 2,097 3,231
2018 79 91.1% 614 1,804 2,952
2004 93 79.6% 56 247 1,002

How Long Does a Aeon Cobra Last?

Based on 195 Aeon Cobra vehicles on UK roads.

Average
6.1 years
Median
5.0 years
Estimated max lifespan
22 years

Aeon Cobra Mileage Distribution

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

Median
1,372 mi
75th Percentile
2,434 mi
95th Percentile
4,601 mi
Max Recorded
38,984 mi

Best Year to Buy a Used Aeon Cobra

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

Best year
2021

92.0% MOT pass rate from 75 tests

Year to avoid
2004

79.6% MOT pass rate from 93 tests

The best year to buy a used Aeon Cobra is 2021, which has the highest MOT pass rate at 92.0% across 75 tests. The 2004 model year has the lowest pass rate at 79.6% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.

How Does the Aeon Cobra Compare?

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

Model Pass Rate Tests Typical Mileage Lifespan
Aeon Cobra THIS CAR 84.9% 503 1,372 mi 22 yrs
Hyundai Santa Fe Premium PHEV Auto 94.3% 872 31,848 mi — yrs
Volkswagen Arteon R-line TSI S-a 96.3% 160 41,984 mi — yrs
Mazda CX-5 Sport Black Edition 88.9% 198 27,389 mi — yrs
Keeway Superlight 125 E4 74.6% 331 8,719 mi — yrs

Compared to the Hyundai Santa Fe Premium PHEV Auto (94.3% pass rate) and the Volkswagen Arteon R-line TSI S-a (96.3% pass rate), the Aeon Cobra trails behind on MOT reliability.

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Should you buy a used Aeon Cobra?

The Aeon Cobra has an overall MOT pass rate of 84.9% across 503 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 Aeon Cobra are registration plate missing (6 recorded failures), headlamp not working on dipped beam (5), and headlamp not working on main beam (5). 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.

On the safety side, the most frequently flagged dangerous fault is parking brake efficiency less than 50% of the required value. Dangerous faults cause an immediate MOT failure and mean the vehicle is not roadworthy until repaired. If you're viewing a Aeon Cobra with an expired or recently passed MOT, ask the seller whether any dangerous faults were found and fixed during the last test.

A typical Aeon Cobra owner drives around 209 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 Aeon Cobra models stay on UK roads for around 22 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.

Aeon Cobra — Frequently Asked Questions

Is the Aeon Cobra reliable?
Based on 503 MOT tests, the Aeon Cobra has a 84.9% pass rate — above the UK average, suggesting good reliability.
What are the common problems on a Aeon Cobra?
The most common MOT failures are registration plate missing, headlamp not working on dipped beam, and headlamp not working on main beam. Check these on any test drive.
How many miles does a Aeon Cobra do per year?
The typical Aeon Cobra does around 209 miles per year. Anything significantly above or below this is worth investigating.
How long does a Aeon Cobra last?
Most Aeon Cobra models stay on UK roads for around 22 years based on our analysis of 195 vehicles.
Should I get a vehicle check before buying a Aeon Cobra?
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 Aeon Cobra?
Based on MOT pass rates, the best year to buy a used Aeon Cobra is 2021 with a 92.0% pass rate across 75 tests.