2021 Peugeot 3008 diesel: common problems and MOT failures
What MOT testers find on the diesel Peugeot 3008 first registered in 2021 (diesel cars only): we looked at the 7,779 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 2021 Peugeot 3008 diesel?
Parts flagged at MOT more often on the 2021 Peugeot 3008 diesel than on all cars registered in 2021.
- Brake pads1.8× usualPeugeot 300810.8% All 2021 cars6.1%
Failed outright at MOT: 2%, against 1.1% of all 2021 cars. The rest were advisories or minor defects.
Rough price £75–£175 (one axle) ClickMechanicAt the viewing: Listen for squealing or grinding when braking, and look through the wheel at how much pad is left.
- Brake discs1.7× usualPeugeot 300810.2% All 2021 cars6.1%
Failed outright at MOT: 0.4%, against 0.3% of all 2021 cars. The rest were advisories or minor defects.
Rough price £150–£350 our estimateAt the viewing: Look through the wheel at the brake disc: a deep lip at the edge or heavy scoring means they're worn. Feel for judder when braking.
Common 2021 Peugeot 3008 diesel MOT failures and advisories
The share of 2021 Peugeot 3008 diesel MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.
- Tyres26% 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.
- Brakes17% 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 mirrors3% of testsRough price £15–£250
At the viewing: Check for chips in the driver's view, and test the wipers and washers.
- Seats and seatbelts3% of testsRough price £80–£250
At the viewing: Pull each seatbelt sharply. It should lock, and retract cleanly.
- Lights and electrics3% of testsRough price £10–£80
At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.
- Driveshafts and joints2% of testsRough price £60–£350
At the viewing: On full steering lock, drive slowly and listen for clicking from the front wheels.
Known faults on the 2021 Peugeot 3008 diesel
Reported by owners, mechanics and buying guides for this model and age. Check which engine the car has, as some apply to one engine only.
- Diesel
DPF, AdBlue and emissions campaigns (diesel)
A plastic exhaust part could damage the particulate filter on cars built Jan to May 2018, the AdBlue system could block on cars built Oct 2019 to Mar 2020, and some cars built 2017 to 2019 need an emissions update. Diesels have more exhaust and engine faults than petrols.
At the viewing: Watch for warning lights and ask a dealer about outstanding work.
Source: What Car?: used Peugeot 3008 (2017-2024) reliability
- All engines
Infotainment and warning light glitches
Owners report faulty infotainment and erratic warning lights.
At the viewing: Use the screen and check no warnings stay on.
Source: What Car?: used Peugeot 3008 (2017-2024) reliability
Questions to ask the seller before buying a 2021 Peugeot 3008 diesel
Ask before you travel to see it. A seller who knows the car will have answers, and receipts.
- Any recent work on the brake pads? (Flagged at MOT 1.8× as often on the 2021 Peugeot 3008 diesel as on other cars the same age.)
- Any recent work on the brake discs? (Flagged at MOT 1.7× as often on the 2021 Peugeot 3008 diesel as on other cars the same age.)
- Can I see the service history and receipts for any big jobs?
Looking at a Peugeot 3008?
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 3008 compared
| Year | MOT tests | Most flagged |
|---|---|---|
| 2026 | – | Too new for MOT data |
| 2025 | – | Too new for MOT data |
| 2024 | – | Too new for MOT data |
| 2023 | 271 | Tyres 13% |
| 2022 | 9,847 | Tyres 26% |
| 2020 | 34,917 | Tyres 30% |
| 2019 | 56,683 | Tyres 29% |
| 2018 | 55,228 | Tyres 28% |
| 2017 | 48,853 | Tyres 28% |
| 2016 | 19,384 | Tyres 32% |
| 2015 | 23,743 | Tyres 32% |
| 2014 | 23,908 | Tyres 35% |
| 2013 | 31,689 | Lights and electrics 38% |
| 2012 | 30,735 | Suspension 41% |
| 2011 | 29,302 | Suspension 45% |
| 2010 | 23,953 | Suspension 48% |
| 2009 | 2,126 | Suspension 51% |
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 3008 cars first registered in 2021. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score