2016 Mazda Bongo: common problems and what to check
What gets flagged at MOT on 2016 Mazda Bongos, from 300 tests in 2025, plus known faults and what to look at before you buy one.
Small sample: only 300 of these were MOT tested in 2025, so treat the percentages as rough. The known faults below don't depend on it.
What stands out
Parts flagged at MOT more often on 2016 Mazda Bongos than on all cars registered in 2016.
- Rear fog light31.7× usualMazda Bongo12.7% All 2016 cars0.4%
Failed outright at MOT: 11.7%, against 0.3% of all 2016 cars. The rest were advisories or minor defects.
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.
- Engine oil leaks5.3× usualMazda Bongo14.7% All 2016 cars2.8%
Failed outright at MOT: 0.7%, against 0.1% of all 2016 cars. The rest were advisories or minor defects.
Rough price £80–£600 our estimateAt the viewing: Look under the engine and where the car is usually parked for fresh oil. Ask whether the leak has been looked at.
- Rust around suspension or steering mountings107× usualMazda Bongo10.7% All 2016 cars0.1%
Failed outright at MOT: 9%, against 0% of all 2016 cars. The rest were advisories or minor defects.
Rough price £100–£450 our estimateAt the viewing: On a straight road the steering wheel should sit straight. Listen for knocks when turning, and check the steering feels even.
- Headlights6.9× usualMazda Bongo11.7% All 2016 cars1.7%
Failed outright at MOT: 3.3%, against 1.4% of all 2016 cars. The rest were advisories or minor defects.
Rough price £40–£400 our estimateAt the viewing: Check both headlights on dipped and full beam, and look for cloudy or cracked lenses.
- Braking performance4× usualMazda Bongo10% All 2016 cars2.5%
Failed outright at MOT: 4.3%, against 0.8% of all 2016 cars. The rest were advisories or minor defects.
Rough price £100–£350 our estimateAt the viewing: On a quiet road, brake firmly from about 30mph. The car should stop straight without pulling.
By area
The share of 2016 Mazda Bongo MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.
- Suspension42% 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 electrics38% of testsRough price £10–£80
At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.
- Brakes29% 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.
- Tyres21% 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 leaks18% 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 bodywork14% 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.
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Other years
| Year | MOT tests | Most flagged |
|---|---|---|
| 2020 | 110 | Lights and electrics 31% |
| 2019 | 103 | Suspension 36% |
| 2018 | 150 | Lights and electrics 35% |
| 2017 | 191 | Suspension 41% |
| 2015 | 332 | Suspension 47% |
| 2014 | 337 | Suspension 49% |
| 2013 | 266 | Suspension 48% |
| 2012 | 221 | Suspension 48% |
| 2011 | 270 | Suspension 54% |
| 2010 | 292 | Suspension 51% |
| 2009 | 271 | Suspension 55% |
| 2008 | 332 | Suspension 59% |
| 2007 | 445 | Suspension 48% |
| 2006 | 474 | Suspension 49% |
| 2005 | 588 | Suspension 44% |
| 2004 | 515 | Suspension 37% |
| 2003 | 380 | Lights and electrics 36% |
| 2002 | 597 | Suspension 32% |
| 2001 | 542 | Lights and electrics 36% |
| 2000 | 501 | Suspension 38% |
| 1999 | 529 | Suspension 44% |
| 1998 | 365 | Suspension 48% |
| 1997 | 552 | Suspension 51% |
| 1996 | 581 | Suspension 56% |
| 1995 | 478 | Suspension 53% |
Where this comes from: the DVSA's anonymised results for every MOT test in Great Britain in 2025, counting tests of 2016 Mazda Bongos registered in 2016. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score