Used car guide

2018 Isuzu D-Max: common problems and MOT failures

What MOT testers find on the Isuzu D-Max first registered in 2018: we looked at the 11,558 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.

11,558MOTs of 2018 cars, done in 2023–2025
74%pass first time (all 2018 cars: 83%)
10,400typical miles a year
49.3×the usual rate for wheel bearings

What goes wrong more than usual on a 2018 Isuzu D-Max?

Parts flagged at MOT more often on the 2018 Isuzu D-Max than on all cars registered in 2018.

  • Wheel bearings49.3× usual
    Isuzu D-Max
    14.8% All 2018 cars
    0.3%

    Failed outright at MOT: 1.9%, against 0.1% of all 2018 cars. The rest were advisories or minor defects.

    Rough price £120–£300 (one bearing) ClickMechanic

    At the viewing: Listen for a hum or growl that changes as you steer at speed.

  • Shock absorbers4.8× usual
    Isuzu D-Max
    11.1% All 2018 cars
    2.3%

    Failed outright at MOT: 4.9%, against 0.4% of all 2018 cars. The rest were advisories or minor defects.

    Rough price £200–£300 (pair, average rear to front) ClickMechanic

    At the viewing: Push down hard on each corner. It should bounce once and settle. Look for oil on the shock absorber body.

  • Rigid brake pipes15× usual
    Isuzu D-Max
    7.5% All 2018 cars
    0.5%

    Failed outright at MOT: 1.3%, against 0.1% of all 2018 cars. The rest were advisories or minor defects.

    Rough price £100–£400 our estimate

    At 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 joints34.5× usual
    Isuzu D-Max
    6.9% All 2018 cars
    0.2%

    Failed outright at MOT: 1.9%, against 0% of all 2018 cars. The rest were advisories or minor defects.

    Rough price £100–£280 (pair of drop links) Checkatrade

    At 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.

  • Number plate lights4.1× usual
    Isuzu D-Max
    5.8% All 2018 cars
    1.4%

    Failed outright at MOT: 2.1%, against 0.5% of all 2018 cars. The rest were advisories or minor defects.

    Rough price £5–£40 our estimate

    At the viewing: Check the number plate lights work and the plates are clean and legal.

Better than most

Tyre condition: 4.9% here, against 13.6% of all 2018 cars.

Common 2018 Isuzu D-Max MOT failures and advisories

The share of 2018 Isuzu D-Max MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

  • Lights and electrics
    27% of testsRough price £10–£80

    At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.

  • Brakes
    22% of testsRough price £150–£350

    At the viewing: Look for a lip on the disc edges and feel for judder or pulling when braking firmly from about 40mph.

  • Suspension
    22% of testsRough price £120–£400

    At the viewing: Listen for knocks over speed bumps, and look behind each front wheel for a snapped coil spring.

  • Tyres
    20% of testsRough price £70–£150

    At the viewing: Check the tread on all four tyres, including the inside edges, and look for cracks or bulges.

  • Wipers, windscreen and mirrors
    9% of testsRough price £15–£250

    At the viewing: Check for chips in the driver's view, and test the wipers and washers.

  • Exhaust and emissions
    3% of testsRough price £100–£1,200

    At the viewing: Look for black soot in the tailpipe, listen for blowing from the exhaust and check for engine or DPF warning lights.

Questions to ask the seller before buying a 2018 Isuzu D-Max

Ask before you travel to see it. A seller who knows the car will have answers, and receipts.

  1. Any recent work on the wheel bearings? (Flagged at MOT 49.3× as often on the 2018 Isuzu D-Max as on other cars the same age.)
  2. Any recent work on the shock absorbers? (Flagged at MOT 4.8× as often on the 2018 Isuzu D-Max as on other cars the same age.)
  3. Any recent work on the rigid brake pipes? (Flagged at MOT 15× as often on the 2018 Isuzu D-Max as on other cars the same age.)
  4. 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, mileage and what to ask the seller. Free, no sign-up.

Other years

Every year of the Isuzu D-Max compared

YearMOT testsMost flagged
2023131Tyres 21%
20223,558Tyres 23%
20216,174Tyres 21%
20207,547Lights and electrics 21%
201911,435Lights and electrics 23%
201712,899Lights and electrics 29%
201612,814Lights and electrics 34%
201513,647Lights and electrics 36%
201411,629Lights and electrics 39%
20138,122Lights and electrics 43%
20123,565Lights and electrics 42%

Where this comes from: the DVSA's anonymised results for every MOT test done in Great Britain during 2023–2025, counting the MOTs of Isuzu D-Max cars first registered in 2018. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score