2018 Peugeot Horizon diesel: common problems and MOT failures
What MOT testers find on the diesel Peugeot Horizon first registered in 2018 (diesel cars only): we looked at the 3,980 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 2018 Peugeot Horizon diesel?
Parts flagged at MOT more often on the 2018 Peugeot Horizon diesel than on all cars registered in 2018.
- Coil springs10.3× usualPeugeot Horizon11.3% All 2018 cars1.1%
Failed outright at MOT: 1.7%, against 0.8% of all 2018 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.
- Drive shaft (CV) joints8.6× usualPeugeot Horizon6.9% All 2018 cars0.8%
Failed outright at MOT: 5.2%, against 0.4% of all 2018 cars. The rest were advisories or minor defects.
Rough price £60–£350 our estimateAt the viewing: Drive slowly on full steering lock in both directions and listen for clicking. Look for split rubber boots behind the front wheels.
- Exhaust system7.9× usualPeugeot Horizon6.3% All 2018 cars0.8%
Failed outright at MOT: 2.2%, against 0.2% of all 2018 cars. The rest were advisories or minor defects.
Rough price £100–£500 (pipe or section) ClickMechanicAt the viewing: Listen for blowing or rattling from underneath at idle, and look for black soot around joints.
- Brake lights6.4× usualPeugeot Horizon5.1% All 2018 cars0.8%
Failed outright at MOT: 4.3%, against 0.6% of all 2018 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.
- Individual direction indicators14.3× usualPeugeot Horizon4.3% All 2018 cars0.3%
Failed outright at MOT: 1.6%, against 0.1% of all 2018 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.
Brake discs: 4.2% here, against 9.8% of all 2018 cars.
Common 2018 Peugeot Horizon diesel MOT failures and advisories
The share of 2018 Peugeot Horizon diesel MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.
- 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.
- Lights and electrics18% of testsRough price £10–£80
At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.
- Suspension15% 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.
- Brakes11% 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.
- Exhaust and emissions8% of testsRough price £100–£1,200
At the viewing: Look for black soot in the tailpipe, listen for blowing from the exhaust and check for engine or DPF warning lights.
- Driveshafts and joints7% of testsRough price £60–£350
At the viewing: On full steering lock, drive slowly and listen for clicking from the front wheels.
Questions to ask the seller before buying a 2018 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 coil springs? (Flagged at MOT 10.3× as often on the 2018 Peugeot Horizon diesel as on other cars the same age.)
- Any recent work on the drive shaft (cv) joints? (Flagged at MOT 8.6× as often on the 2018 Peugeot Horizon diesel as on other cars the same age.)
- Any recent work on the exhaust system? (Flagged at MOT 7.9× as often on the 2018 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 |
| 2021 | 728 | Tyres 17% |
| 2020 | 500 | Tyres 21% |
| 2019 | 1,402 | Tyres 19% |
| 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 2018. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score