The picture
Glr: above-average pass rates, with caveats
Across 6,302 MOT tests, the Glr returns 81.7% first-time pass — above the UK fleet average. The single most-logged Major fail is tyre tread under the limit. A non-functioning shock absorber and transmission belt, chain round out the top three. Average tested mileage sits at 12,557, 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.
Top ten reasons for rejection.
- 01
Tyre tread depth not in accordance with the requirements
181 occurrences · 2.9% of tests
- 02
A shock absorber not functioning or leaking severely
149 occurrences · 2.4% of tests
- 03
A transmission belt, chain, sprocket or pulley excessively loose or worn
103 occurrences · 1.6% of tests
- 04
A transmission belt, chain, sprocket or pulley excessively loose or worn
62 occurrences · 1.0% of tests
- 05
Brake lining or pad worn below 1.0mm
54 occurrences · 0.9% of tests
- 06
The aim of a headlamp is not within limits laid down in the requirements
48 occurrences · 0.8% of tests
- 07
Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
41 occurrences · 0.7% of tests
- 08
A lens defective which has no effect on emitted light
39 occurrences · 0.6% of tests
- 09
A headlamp missing, inoperative or more than ½ not functioning in the case of LED
34 occurrences · 0.5% of tests
- 10
A transmission belt, chain, sprocket or pulley excessively loose or worn
34 occurrences · 0.5% 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.
Worst-case fix budget · top 2 failures
£140–£255
If every one of this Glr's most-logged Major fails hit at the same MOT, that's the real-world UK garage range. Reality is usually one or two items, not all of them. Open the estimator →
Try the calculator
Build your own retest budget.
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.
Search Amazon UK
Item 02 · Amazon UK
Brake pad measurement gauge
Testers fail pads under 1.5mm. A wear gauge tells you if you've got two months left or two weeks.
Search Amazon UK
Buying or keeping a Glr?
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 Glr 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.