The picture

Gl1500: a strong MOT record by UK norms

Across 795 MOT tests, the Gl1500 returns 86.2% first-time pass — comfortably ahead of the UK fleet average. The single most-logged Major fail is brake efficiency below minimum requirement. Tyre tread under the limit and brake pads worn below 1.0 mm round out the top three. Average tested mileage sits at 53,950, which is the lens to read those failure rankings through. If you own one and the next test is close, the ranked list below is a sensible pre-test checklist.

ABI Insurance Group

Group 10–26

Below the fleet average — generally reasonable to insure. Lower groups cost less to insure; UK fleet average is around Group 22.

Source: ABI Group Rating Panel · administered by Thatcham Research · groups cover standard variants; performance trims may sit higher. Browse all insurance groups →

10–26

out of 50

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Top ten reasons for rejection.

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01

Brake efficiency below minimum requirement

16 occurrences · 1.2% of tests
02

A shock absorber not functioning or leaking severely

14 occurrences · 1.0% of tests
03

Brake control has insufficient reserve travel

8 occurrences · 0.6% of tests
04

A tyre cords exposed or damaged

7 occurrences · 0.5% of tests
05

Projected beam image is obviously incorrect

6 occurrences · 0.4% of tests
06

Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning

4 occurrences · 0.3% of tests
07

A tyre valve seriously damaged or misaligned likely which could cause sudden deflation of the tyre

4 occurrences · 0.3% of tests
08

Parking brake inoperative on one side

4 occurrences · 0.3% of tests
09

Parking brake efficiency less than 50% of the required value

4 occurrences · 0.3% of tests
10

A stop lamp switch does not operate in accordance with the requirements

3 occurrences · 0.2% of tests

Counts cover Major and Dangerous defects logged at test. Advisory items excluded so this shows why a car was rejected, not just what the tester flagged in passing.

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Tools that pre-empt a retest.

Picked against this car's top failure patterns. Affiliate links to Amazon UK — we earn a small cut at no cost to you. Disclosed up-front, doesn't shape the data.

Item 01 · Amazon UK

Digital tyre-tread depth gauge

Five quid for a gauge beats £150 for a retest. UK MOT minimum is 1.6mm — most testers fail anything below 2mm to be safe.

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Parts & supplies for this fix

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Draper

Draper Drain Plug Key, 3/8 Square x 3/8 Sq. Dr.

£15.39

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Hycote

Hycote Honda Nighthawk Black Pearlescent Double Acrylic Spray Paint 150ml

£6.59

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Hycote

Hycote Honda Milano Red Double Acrylic Spray Paint 150ml

£6.59

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Hycote

Hycote Honda Satin Silver Metallic Double Acrylic Spray Paint 150ml

£6.59

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Buying or keeping a Gl1500?

Use the failure ranking as a pre-test checklist or a haggling lever. Treat the headline pass rate as a fleet-wide trend, not a guarantee on any individual car.

If you own a Gl1500 and your last MOT looked nothing like the ranked failures above, that's normal — individual cars vary widely. The ranking shows the patterns testers flag most often across the country.