2021 Peugeot Horizon diesel: common problems and MOT failures
What MOT testers find on the diesel Peugeot Horizon first registered in 2021 (diesel cars only): we looked at the 454 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.
Small sample: there were only 454 MOTs of these cars during 2023–2025, so treat the percentages as rough. The known faults below don't depend on it.
What goes wrong more than usual on a 2021 Peugeot Horizon diesel?
Parts flagged at MOT more often on the 2021 Peugeot Horizon diesel than on all cars registered in 2021.
- Wipers3.3× usualPeugeot Horizon11.7% All 2021 cars3.5%
Failed outright at MOT: 7.9%, against 2.2% of all 2021 cars. The rest were advisories or minor defects.
Rough price £15–£60 our estimateAt the viewing: Test the wipers and washers on every speed.
Common 2021 Peugeot Horizon diesel MOT failures and advisories
The share of 2021 Peugeot Horizon diesel MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.
- Tyres18% 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.
- Brakes14% 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 mirrors14% of testsRough price £15–£250
At the viewing: Check for chips in the driver's view, and test the wipers and washers.
- Lights and electrics7% of testsRough price £10–£80
At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.
- Seats and seatbelts2% of testsRough price £80–£250
At the viewing: Pull each seatbelt sharply. It should lock, and retract cleanly.
- Oil and fluid leaks1% 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 2021 Peugeot Horizon diesel
Ask before you travel to see it. A seller who knows the car will have answers, and receipts.
- Any recent work on the wipers? (Flagged at MOT 3.3× as often on the 2021 Peugeot Horizon diesel as on other cars the same age.)
- Can I see the service history and receipts for any big jobs?
Looking at a Peugeot Horizon?
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 Peugeot Horizon compared
| Year | MOT tests | Most flagged |
|---|---|---|
| 2025 | – | Too new for MOT data |
| 2024 | – | Too new for MOT data |
| 2020 | 500 | Tyres 21% |
| 2019 | 1,402 | Tyres 19% |
| 2018 | 4,246 | Tyres 21% |
| 2017 | 4,103 | Tyres 19% |
| 2016 | 3,941 | Suspension 24% |
| 2015 | 3,609 | Suspension 25% |
| 2014 | 3,301 | Suspension 24% |
| 2013 | 2,736 | Suspension 27% |
| 2012 | 742 | Suspension 31% |
Where this comes from: the DVSA's anonymised results for every MOT test done in Great Britain during 2023–2025, counting the MOTs of Peugeot Horizon cars first registered in 2021. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score