MOT failures by make

Isuzu MOT faults: which failures are more common than on similar cars

Across 88,097 MOT tests of Isuzu cars in 2023–2024, 10 of the make's most common failure items stand out against cars of the same age, mileage and fuel, led by “Shock absorbers: has an excessively worn bush” at 27.75× the comparable rate. Overall Isuzus passed 67.9% of tests and failed 1.13× as often as comparable cars.

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Data to 2024-12-30 · Page updated 2026-09-28 · Publisher: 73 Auto

Isuzu MOT tests: 88,097; 47,166 cars, 2023–2024
Initial pass rate: 67.9%; DVSA results, retests excluded
Faults that stand out: 10; passed the make × item gate

Failures more common on Isuzus than on similar cars

Each links to the model-by-model and age breakdown for Isuzu.

Shock absorbers: has an excessively worn bush · 27.75× · 4.02% of tests
Wheel bearings: has excessive play · 10.13× · 2.01% of tests
Rear fog lamp: not working · 7.80× · 4.50% of tests
Exhaust system: has a major leak of exhaust gases · 7.01× · 3.24% of tests
Rigid brake pipes: excessively corroded · 3.92× · 2.50% of tests
Ball joint: ball joint excessively worn · 1.82× · 2.49% of tests
Position lamp: not working · 1.74× · 3.98% of tests
Wipers: does not clear the windscreen effectively · 1.55× · 3.08% of tests
Rbt (sp): efficiency below requirements · 1.50× · 1.58% of tests

Failures less common on Isuzus

Common failure items where Isuzus do clearly better than comparable cars, beyond the make's overall level.

Brake pads: less than 1.5 mm thick · 0.67× · 1.50% of tests

Isuzu’s most common MOT failure items

Ranked by how many Isuzu tests failed on each item. The last column compares with cars of the same age, mileage and fuel (1.00 = the same rate).

Isuzu: most common MOT failure items with observed ÷ expected
Defect item	Rank	Tests failing	Share	vs similar cars
Rear fog lamp: not working	#1	3,966	4.50%	7.80×
Shock absorbers: has an excessively worn bush	#2	3,539	4.02%	27.76×
Position lamp: not working	#3	3,507	3.98%	1.74×
Exhaust system: has a major leak of exhaust gases	#4	2,858	3.24%	7.01×
Wipers: does not clear the windscreen effectively	#5	2,715	3.08%	1.55×
Rigid brake pipes: excessively corroded	#6	2,201	2.50%	3.92×
Ball joint: ball joint excessively worn	#7	2,193	2.49%	1.82×
Wheel bearings: has excessive play	#8	1,767	2.01%	10.13×
Tread depth: tread depth below requirements of 1.6mm	#9	1,759	2.00%	0.77×
Washers: provides insufficient washer liquid	#10	1,432	1.63%	1.19×
Registration plate lamp(s): inoperative in the case of a single lamp or all lamps	#12	1,400	1.59%	1.30×
Stop lamp: not working	#13	1,398	1.59%	0.95×
Rbt (sp): efficiency below requirements	#14	1,392	1.58%	1.51×
Brake pads: less than 1.5 mm thick	#15	1,325	1.50%	0.67×
Anti-lock braking system: warning lamp indicates an ABS fault	#16	1,124	1.28%	2.81×

Only the 150 most common national MOT failure items are compared; a rank counts every failure item recorded on the make.

How to use this

The list shows what a Isuzu is more likely than other cars to fail on, which is where to look on a pre-MOT check or a used-car inspection. The model pages break the same data down further — see Isuzu MOT pass rates by model.

Limitations

Official data: DVSA anonymised MOT results (2023–2024). 73 Auto analysis: expected failures apply the national rate of each item for the test's age, mileage band and fuel. MOT results reflect maintenance and use as well as design; they do not rank makes by reliability.

Check a Isuzu’s MOT history before you buy

Enter a registration to see which of these faults that particular car has failed or been advised on, and what it costs to run. Your first check is free and shows the vehicle summary and its headline ownership cost. The category-by-category breakdown is part of a paid check.

UK number plate or 17-character VIN

Where these figures come from

Anonymised MOT tests and results (2023 and 2024) — Driver and Vehicle Standards Agency (DVSA). Open Government Licence v3.0.

Figures labelled as 73 Auto estimates are our own analysis of these sources, set out in the methodology and data sources. To report a factual error, see corrections.