Isuzu D-Max common problems and MOT failures
What goes wrong on a used Isuzu D-Max, year by year: known faults from UK buying guides, the parts flagged at MOT more than on other cars (from 37,252 MOTs done during 2025), and what to check before you buy one.
Pick the year
Most years have their own guide. The year is when the car was first registered (it’s on the logbook, or check the reg below).
What usually goes wrong with an Isuzu D-Max?
We haven’t found widely reported faults for the Isuzu D-Max in the UK buying guides we use yet. That doesn’t mean it has none, so check the car carefully and look at the MOT weak spots below.
Common Isuzu D-Max MOT failures to check
Parts flagged at MOT well above the usual rate for cars the same age, in more than one year. From the DVSA’s results for every MOT done in Great Britain during 2025.
Wheel bearings
up to 60.5× usualStands out on cars registered in 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 and 2020.
Rough price £120–£300 (one bearing) ClickMechanicAt the viewing: Listen for a hum or growl that changes as you steer at speed.
Rigid brake pipes
up to 31× usualStands out on cars registered in 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 and 2020.
Rough price £100–£400 our estimateAt the viewing: Ask to see underneath, or check the MOT advisories: corroded brake or fuel pipes get worse every year and fail the MOT when they do.
Anti-roll bar bushes and joints
up to 76× usualStands out on cars registered in 2015, 2016, 2017, 2018, 2019 and 2020.
Rough price £100–£280 (pair of drop links) CheckatradeAt the viewing: Drive slowly over bumps and listen for a knock or rattle from the front. Worn anti-roll bar links are a cheap fix.
Exhaust system
up to 6.4× usualStands out on cars registered in 2012, 2013, 2014, 2015, 2016 and 2017.
Rough price £100–£500 (pipe or section) ClickMechanicAt the viewing: Listen for blowing or rattling from underneath at idle, and look for black soot around joints.
Shock absorbers
up to 5.8× usualStands out on cars registered in 2017, 2018, 2019, 2020, 2021 and 2022.
Rough price £200–£300 (pair, average rear to front) ClickMechanicAt the viewing: Push down hard on each corner. It should bounce once and settle. Look for oil on the shock absorber body.
Rear fog light
up to 13.6× usualStands out on cars registered in 2012, 2013, 2014 and 2015.
Rough price £10–£80 our estimateAt the viewing: Ask a friend to check every light while you work the switches: indicators, brake lights, fog lights and reversing lights.
Isuzu D-Max MOT pass rate by year
Of the years since 2005 with plenty of MOT tests, the 2021 Isuzu D-Max did best (83% passed first time, 4 points below all 2021 cars) and the 2020 did worst (77%, 9 points below all 2020 cars). Older cars fail more, so compare each year with all cars registered the same year.
Questions to ask the seller before buying an Isuzu D-Max
Ask before you travel to see it. A seller who knows the car will have answers, and receipts.
- Any recent work on the wheel bearings? (Flagged at MOT 60.5× as often on the Isuzu D-Max as on other cars the same age.)
- Any recent work on the rigid brake pipes? (Flagged at MOT 31× as often on the Isuzu D-Max as on other cars the same age.)
- Any recent work on the anti-roll bar bushes and joints? (Flagged at MOT 76× as often on the Isuzu D-Max as on other cars the same age.)
- Can I see the service history and receipts for any big jobs?
Looking at an Isuzu D-Max?
Check the actual car: its own MOT history, whether it already shows these weak spots and what to ask the seller. Free, no sign-up.
Where this comes from: MOT figures are the DVSA’s anonymised results for every MOT test done in Great Britain during 2025, grouped by the year each car was first registered. How many are on the road is from the Department for Transport’s vehicle licensing statistics. Known faults are from UK buying guides, in our own words, with links. How we score