Used car guide

2018 Mazda Bongo: common problems and MOT failures

What MOT testers find on the Mazda Bongo first registered in 2018: we looked at the 484 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.

Small sample: there were only 484 MOTs of these cars during 2023–2025, so treat the percentages as rough. The known faults below don't depend on it.

484MOTs of 2018 cars, done in 2023–2025
64%pass first time (all 2018 cars: 83%)
15,800typical miles a year
13.4×the usual rate for headlights

What goes wrong more than usual on a 2018 Mazda Bongo?

Parts flagged at MOT more often on the 2018 Mazda Bongo than on all cars registered in 2018.

  • Headlights13.4× usual
    Mazda Bongo
    13.4% All 2018 cars
    1%

    Failed outright at MOT: 4.8%, against 0.9% of all 2018 cars. The rest were advisories or minor defects.

    Rough price £40–£400 our estimate

    At the viewing: Check both headlights on dipped and full beam, and look for cloudy or cracked lenses.

  • Engine oil leaks8.7× usual
    Mazda Bongo
    8.7% All 2018 cars
    1%

    Failed outright at MOT: 0.2%, against 0% of all 2018 cars. The rest were advisories or minor defects.

    Rough price £80–£600 our estimate

    At the viewing: Look under the engine and where the car is usually parked for fresh oil. Ask whether the leak has been looked at.

  • Rear fog light38× usual
    Mazda Bongo
    7.6% All 2018 cars
    0.2%

    Failed outright at MOT: 7.4%, against 0.2% of all 2018 cars. The rest were advisories or minor defects.

    Rough price £10–£80 our estimate

    At the viewing: Ask a friend to check every light while you work the switches: indicators, brake lights, fog lights and reversing lights.

  • Ball joint dust cover17.5× usual
    Mazda Bongo
    7% All 2018 cars
    0.4%

    Failed outright at MOT: 3.5%, against 0.2% of all 2018 cars. The rest were advisories or minor defects.

    Rough price £60–£150 (one joint) ClickMechanic

    At the viewing: Listen for knocking over bumps and check the rubber boots behind the wheels aren't split.

  • Brake lights7.8× usual
    Mazda Bongo
    6.2% All 2018 cars
    0.8%

    Failed outright at MOT: 5.4%, against 0.6% of all 2018 cars. The rest were advisories or minor defects.

    Rough price £10–£80 our estimate

    At the viewing: Ask a friend to check every light while you work the switches: indicators, brake lights, fog lights and reversing lights.

Common 2018 Mazda Bongo MOT failures and advisories

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

  • Lights and electrics
    34% of testsRough price £10–£80

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

  • Suspension
    30% 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.

  • Brakes
    26% 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.

  • Tyres
    19% 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.

  • Oil and fluid leaks
    11% of testsRough price £80–£600

    At the viewing: Look under the engine and on the ground where the car is usually parked for fresh oil or fluid.

  • Wipers, windscreen and mirrors
    11% of testsRough price £15–£250

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

Questions to ask the seller before buying a 2018 Mazda Bongo

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

  1. Any recent work on the headlights? (Flagged at MOT 13.4× as often on the 2018 Mazda Bongo as on other cars the same age.)
  2. Any recent work on the engine oil leaks? (Flagged at MOT 8.7× as often on the 2018 Mazda Bongo as on other cars the same age.)
  3. Any recent work on the rear fog light? (Flagged at MOT 38× as often on the 2018 Mazda Bongo as on other cars the same age.)
  4. Can I see the service history and receipts for any big jobs?

Looking at a Mazda Bongo?

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 Mazda Bongo compared

YearMOT testsMost flagged
2021172Lights and electrics 31%
2020364Lights and electrics 30%
2019369Lights and electrics 36%
2017674Suspension 38%
20161,065Suspension 40%
20151,159Suspension 40%
20141,186Suspension 46%
2013993Suspension 45%
2012858Suspension 47%
20111,005Suspension 50%
20101,177Suspension 49%
20091,061Suspension 52%
20081,416Suspension 53%
20071,825Suspension 50%
20061,793Suspension 51%
20052,116Suspension 44%
20041,638Suspension 39%
20031,125Suspension 34%
20021,534Suspension 33%
20011,400Lights and electrics 38%
20001,311Suspension 36%
19991,306Suspension 40%
1998874Suspension 47%
19971,313Suspension 52%
19961,401Suspension 53%
19951,136Suspension 54%

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