Used car guide

2012 Mazda Bongo: common problems and MOT failures

What MOT testers find on the Mazda Bongo first registered in 2012: we looked at the 858 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.

858MOTs of 2012 cars, done in 2023–2025
53%pass first time (all 2012 cars: 64%)
11,700typical miles a year
25.7×the usual rate for rust around suspension or steering mountings

What goes wrong more than usual on a 2012 Mazda Bongo?

Parts flagged at MOT more often on the 2012 Mazda Bongo than on all cars registered in 2012.

  • Rust around suspension or steering mountings25.7× usual
    Mazda Bongo
    15.4% All 2012 cars
    0.6%

    Failed outright at MOT: 11.9%, against 0.2% of all 2012 cars. The rest were advisories or minor defects.

    Rough price £100–£450 our estimate

    At the viewing: On a straight road the steering wheel should sit straight. Listen for knocks when turning, and check the steering feels even.

  • Engine oil leaks2.8× usual
    Mazda Bongo
    16.3% All 2012 cars
    5.8%

    Failed outright at MOT: 0.3%, against 0.1% of all 2012 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.

  • Body structure rust or damage32.3× usual
    Mazda Bongo
    9.7% All 2012 cars
    0.3%

    Failed outright at MOT: 3.8%, against 0.1% of all 2012 cars. The rest were advisories or minor defects.

    Rough price £150–£1,000 our estimate

    At the viewing: Look underneath and along the sills for flaky rust or fresh underseal hiding it.

  • Headlights3.4× usual
    Mazda Bongo
    13.4% All 2012 cars
    3.9%

    Failed outright at MOT: 5.1%, against 2.7% of all 2012 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.

  • Rear fog light13.1× usual
    Mazda Bongo
    9.2% All 2012 cars
    0.7%

    Failed outright at MOT: 8.7%, against 0.6% of all 2012 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.

Better than most

Tread depth: 10.5% here, against 22.2% of all 2012 cars. Suspension arm bushes and joints: 2.8% here, against 8.9% of all 2012 cars.

Common 2012 Mazda Bongo MOT failures and advisories

The share of 2012 Mazda Bongo MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

  • Suspension
    47% 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.

  • Lights and electrics
    38% 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
    33% 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
    22% 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
    19% 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.

  • Rust and bodywork
    19% of testsRough price £150–£1,000

    At the viewing: Check the sills, wheel arches and underneath for rust, and look along the panels for uneven gaps or paint.

Questions to ask the seller before buying a 2012 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 rust around suspension or steering mountings? (Flagged at MOT 25.7× as often on the 2012 Mazda Bongo as on other cars the same age.)
  2. Any recent work on the engine oil leaks? (Flagged at MOT 2.8× as often on the 2012 Mazda Bongo as on other cars the same age.)
  3. Any recent work on the body structure rust or damage? (Flagged at MOT 32.3× as often on the 2012 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%
2018484Lights and electrics 34%
2017674Suspension 38%
20161,065Suspension 40%
20151,159Suspension 40%
20141,186Suspension 46%
2013993Suspension 45%
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 2012. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score