2015 Fiat Doblo diesel: common problems and MOT failures
What MOT testers find on the diesel Fiat Doblo first registered in 2015 (diesel cars only): we looked at the 12,329 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.
What goes wrong more than usual on a 2015 Fiat Doblo diesel?
Parts flagged at MOT more often on the 2015 Fiat Doblo diesel than on all cars registered in 2015.
- Coil springs3.9× usualFiat Doblo16.9% All 2015 cars4.3%
Failed outright at MOT: 10%, against 2.6% of all 2015 cars. The rest were advisories or minor defects.
Rough price £175–£400 (pair, one axle) ClickMechanicAt the viewing: Look behind each wheel for a snapped spring coil, and listen for a clunk or twang when turning the wheel lock to lock with the car stopped.
- Engine oil leaks3.8× usualFiat Doblo9.4% All 2015 cars2.5%
Failed outright at MOT: 0.2%, against 0.1% of all 2015 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.
- Windscreen3.2× usualFiat Doblo7.3% All 2015 cars2.3%
Failed outright at MOT: 0.2%, against 0.1% of all 2015 cars. The rest were advisories or minor defects.
Rough price £60–£300 our estimateAt the viewing: Check for chips or cracks in the driver's view.
- Side repeaters5.7× usualFiat Doblo4% All 2015 cars0.7%
Failed outright at MOT: 1.9%, against 0.5% of all 2015 cars. The rest were advisories or minor defects.
Rough price £10–£80 our estimateAt the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.
- Link ball joint covers5.6× usualFiat Doblo3.9% All 2015 cars0.7%
Failed outright at MOT: 2.6%, against 0.4% of all 2015 cars. The rest were advisories or minor defects.
Rough price £60–£150 (one joint) ClickMechanicAt the viewing: Listen for knocking over bumps and check the rubber boots behind the wheels aren't split.
Brake pads: 4.5% here, against 10.4% of all 2015 cars.
Common 2015 Fiat Doblo diesel MOT failures and advisories
The share of 2015 Fiat Doblo diesel MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.
- Tyres36% 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.
- Suspension36% 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 electrics23% of testsRough price £10–£80
At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.
- Brakes21% 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.
- Wipers, windscreen and mirrors13% of testsRough price £15–£250
At the viewing: Check for chips in the driver's view, and test the wipers and washers.
- Oil and fluid leaks10% 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.
Questions to ask the seller before buying a 2015 Fiat Doblo diesel
Ask before you travel to see it. A seller who knows the car will have answers, and receipts.
- Any recent work on the coil springs? (Flagged at MOT 3.9× as often on the 2015 Fiat Doblo diesel as on other cars the same age.)
- Any recent work on the engine oil leaks? (Flagged at MOT 3.8× as often on the 2015 Fiat Doblo diesel as on other cars the same age.)
- Any recent work on the windscreen? (Flagged at MOT 3.2× as often on the 2015 Fiat Doblo diesel as on other cars the same age.)
- Can I see the service history and receipts for any big jobs?
Looking at a Fiat Doblo?
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 Fiat Doblo compared
| Year | MOT tests | Most flagged |
|---|---|---|
| 2022 | 718 | Tyres 26% |
| 2021 | 3,860 | Tyres 27% |
| 2020 | 3,577 | Tyres 26% |
| 2019 | 5,140 | Tyres 26% |
| 2018 | 5,997 | Tyres 27% |
| 2017 | 7,477 | Tyres 30% |
| 2016 | 10,266 | Tyres 33% |
| 2014 | 17,564 | Suspension 36% |
| 2013 | 20,466 | Suspension 29% |
| 2012 | 6,426 | Suspension 44% |
| 2011 | 5,990 | Suspension 45% |
| 2010 | 5,656 | Suspension 43% |
| 2009 | 4,786 | Tyres 36% |
| 2008 | 6,175 | Suspension 38% |
| 2007 | 6,810 | Suspension 45% |
| 2006 | 4,966 | Suspension 44% |
| 2005 | 3,261 | Lights and electrics 50% |
| 2004 | 2,414 | Suspension 51% |
| 2003 | 1,336 | Suspension 52% |
| 2002 | 581 | Suspension 51% |
| 2001 | 120 | Suspension 46% |
Where this comes from: the DVSA's anonymised results for every MOT test done in Great Britain during 2023–2025, counting the MOTs of Fiat Doblo cars first registered in 2015. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score