DS 7 common problems and MOT failures
What goes wrong on a used DS 7, year by year: known faults from UK buying guides, the parts flagged at MOT more than on other cars (from 9,045 MOTs done during 2023–2025), and what to check before you buy one.
Pick the year
Most years have their own guide. The year is when the car was first registered (it’s on the logbook, or check the reg below).
What usually goes wrong with a DS 7?
Known faults reported by owners, mechanics and UK buying guides, in our own words. Most apply to certain years or engines only, so check which the car has.
- Cars registered 2018–2025 · 1.0 and 1.2 PureTech petrol
Timing belt that runs in oil (PureTech petrol)
The 1.0 and 1.2 PureTech petrol engines use a timing belt that runs in the engine oil (a “wet belt”). It can break down early and shed rubber that blocks the oil supply, which can wreck the engine. Some also burn too much oil. Stellantis now covers earlier engines for belt and oil-burning problems for up to 10 years or 112,000 miles, as long as the car has been serviced on schedule.
At the viewing: Ask for a full service history showing the right oil, and when the belt was last checked or changed. Check the oil level on the dipstick, and that no oil-pressure or engine warning light stays on.
Source: Parkers: Stellantis wet belt compensation, and the cars at risk, Stellantis: compensation policy for earlier PureTech 1.0 and 1.2 engines (7 May 2025)
Common DS 7 MOT failures to check
Parts flagged at MOT well above the usual rate for cars the same age, in more than one year. From the DVSA’s results for every MOT done in Great Britain during 2023–2025.
Drive shaft (CV) joints
up to 8.2× usualStands out on cars registered in 2018, 2019 and 2020.
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.
DS 7 MOT pass rate by year
Of the years since 2005 with plenty of MOT tests, the 2021 DS 7 did best (89% passed first time, 2 points above all 2021 cars) and the 2018 did worst (79%, 4 points below all 2018 cars). Older cars fail more, so compare each year with all cars registered the same year.
Questions to ask the seller before buying a DS 7
Ask before you travel to see it. A seller who knows the car will have answers, and receipts.
- When was the timing belt last checked or changed, and has it had the right oil at every service? Is the car still within Stellantis’ extended PureTech cover?
- Any recent work on the drive shaft (cv) joints? (Flagged at MOT 8.2× as often on the DS 7 as on other cars the same age.)
- Can I see the service history and receipts for any big jobs?
Looking at a DS 7?
Check the actual car: its own MOT history, whether it already shows these weak spots and what to ask the seller. Free, no sign-up.
Where this comes from: MOT figures are the DVSA’s anonymised results for every MOT test done in Great Britain during 2023–2025, grouped by the year each car was first registered. How many are on the road is from the Department for Transport’s vehicle licensing statistics. Known faults are from UK buying guides, in our own words, with links. How we score