Award-winning SUV let down by PureTech engines
The Mk2 3008 (2017-2024) was a revelation for Peugeot, winning European Car of the Year 2017 and transforming from a dowdy MPV into a sharp-looking SUV. It competes with the Nissan Qashqai, Ford Kuga, and Hyundai Tucson. Used Mk2 examples range from £9,000 to £30,000. Reliability is its Achilles heel: it ranks 39th overall in reliability surveys, dragged down by PureTech engine and electrical issues.
We track 10 known issues across the Peugeot 3008 range, including 2 rated as safety-critical. Knowing which variants and configurations to approach with caution can save you from expensive surprises after purchase.
Found a Peugeot 3008? Enter the reg to see which of our 10 known issues apply to that exact car, plus full MOT history and mileage checks.
T84 (2008–2016) — Petrol options included the 1.6 THP, 1.6 THP, with 1.6 HDi, 1.6 HDi, 1.6 HDi, 2.0 HDi on the diesel side. Our database flags 8 known issues on this generation, 1 of which are rated as safety-critical. The most significant concern is Timing chain failure (£1,800–£2,500 to address).
Mk2 (2016–2023) — Petrol options included the 1.2 PureTech, 1.6 THP, with 1.5 BlueHDi, 2.0 BlueHDi on the diesel side. Our database flags 6 known issues on this generation, 1 of which are rated as safety-critical. The most significant concern is Timing belt (wet) issues (£800–£1,200 to address).
The 1.6 THP engine uses a timing chain system that is prone to excessive stretch due to undersized tensioner components and inadequate oil pressure at the chain guides. Chain stretch of more than 0.6 degrees causes the engine to jump timing, resulting in catastrophic valve and piston damage. This is a well-documented failure mode across the PSA 1.6 THP family, with the EP6DT variant in the T84 3008 being particularly susceptible. The issue was partially addressed in later revisions but remains a significant concern on higher-mileage examples.
If the timing chain jumps even one tooth, the interference engine design means pistons will strike valves, causing complete engine destruction. Repair costs typically exceed the vehicle's value, ranging from £4,000-£8,000 for a complete engine rebuild. The car becomes immediately undriveable when failure occurs.
Listen carefully for a rattle or ticking noise from the engine on cold start — this is the most common early sign. Ask for evidence of chain replacement in the service history. On higher-mileage cars without documented replacement, budget for preventative work.
The 1.2 PureTech three-cylinder engine uses a timing belt that runs in engine oil (wet belt system) instead of a traditional dry timing belt. The belt material deteriorates in the oil environment, particularly when service intervals are extended or incorrect oil specifications are used. Belt failure is catastrophic on this interference engine, causing extensive valve and piston damage. This design flaw affects the entire PSA PureTech range and has been the subject of significant owner complaints and specialist warnings.
Wet timing belt failure results in complete engine destruction due to valve-piston contact in this interference design. Engine rebuild costs typically range from £4,000-£6,000, often exceeding the vehicle's value. Failure can occur without warning, leaving the car immediately immobile.
Listen carefully for a rattle or ticking noise from the engine on cold start — this is the most common early sign. Ask for evidence of chain replacement in the service history. On higher-mileage cars without documented replacement, budget for preventative work.
The EGS (Efficient Grip System) automated manual gearbox fitted to many T84 3008 models suffers from actuator and clutch control problems. The system uses electro-hydraulic actuators to operate the clutch and select gears, but these components are prone to failure, causing jerky gear changes, clutch slip, and complete loss of drive. The EGS system was known for poor reliability across the PSA range and was eventually discontinued in favour of conventional automatics and DSG-type transmissions.
EGS actuator failure can leave the vehicle stuck in gear or unable to engage drive, requiring recovery. Repair typically involves replacing the complete actuator unit and often the clutch assembly simultaneously. The vehicle remains driveable with minor symptoms but will eventually require expensive repairs to maintain reliability.
Test the automatic gearbox extensively in slow traffic, car parks and on hill starts. Feel for any juddering, hesitation or clunking during gear changes. Try repeated low-speed manoeuvres as this is where problems are most apparent.
Diesel Particulate Filter (DPF) blockage is a persistent problem across all PSA diesel engines, particularly on vehicles used predominantly for short journeys. The DPF requires regular high-temperature regeneration cycles to burn off accumulated soot, but insufficient motorway driving prevents proper regeneration. T84 and early Mk2 models are particularly susceptible due to the regeneration system design and the typically urban usage pattern of crossover vehicles.
Complete DPF blockage will trigger limp mode, limiting engine power and eventually preventing normal driving. DPF replacement costs £1,500-£2,500, while professional cleaning services cost £300-£600. Removal of the DPF is illegal and will cause MOT failure. Vehicles with blocked DPFs require immediate attention to prevent engine damage.
Ask about the car's typical usage — short urban journeys prevent DPF regeneration. Check for DPF warning lights and ask about any previous regeneration issues. A forced regeneration at a garage costs far less than a DPF replacement.
The Exhaust Gas Recirculation (EGR) valve on T84 diesel engines is prone to carbon buildup and mechanical failure, causing poor engine running, excessive emissions, and ultimately MOT failure. The EGR system recirculates exhaust gases back into the combustion chamber to reduce NOx emissions, but the valve mechanism becomes clogged with carbon deposits over time. This is exacerbated by short journey patterns and poor fuel quality, common in UK urban driving conditions.
EGR failure causes poor running, increased fuel consumption, and excessive emissions leading to MOT failure. Left unrepaired, the engine may develop more serious carbon buildup problems affecting turbocharger and DPF function. The vehicle remains driveable but will fail emissions tests and may trigger engine management warnings.
Check for any engine warning lights on the dashboard. Ask about the car's MOT emissions history — repeated failures suggest underlying issues. A pre-purchase diagnostic scan is especially worthwhile to check for stored emissions fault codes.
For the full breakdown of all 10 tracked issues with repair costs, see the Peugeot 3008 common problems page.
Based on 639k real DVSA MOT tests, the Peugeot 3008 fails more often than average on several items. The biggest outlier is fluid leak at 440x the fleet average, followed by parking brake inefficient (37x).
When viewing a specific car, check its MOT history for recurring advisories in these categories. See the full Peugeot 3008 MOT failure breakdown for data at every mileage point.
Routine servicing (oil and filter change every 16k miles) typically costs £80–£120 at an independent garage.
The bigger-ticket items to budget for include timing belt (wet belt) replacement (£800–£1,200).
See the full Peugeot 3008 service schedule for every interval and cost breakdown.
The Peugeot 3008 has some well-documented weak points, including 2 safety-critical issues that demand careful checking. The right example, properly maintained, can still be a sound purchase — but cutting corners on the pre-purchase inspection is not advisable. 2019-2021 for the Mk2 with the 1.5 BlueHDi diesel (avoids PureTech wet belt risk entirely, post-launch electrical issues resolved, pre-semiconductor-shortage price inflation). If buying PureTech petrol, insist on proof of wet timing belt replacement within the last 40,000 miles/4 years, or negotiate £500+ off the price for immediate replacement.
Before committing, check the car's full MOT history, verify the service record is complete, and if possible arrange a specialist inspection. Enter any registration into our free report to see the complete picture.
Get Car Wise maintains a database of known mechanical issues for every popular car on UK roads, tracking the faults that owners, specialists and DVSA data reveal.
When you run a report on a specific Peugeot 3008, we cross-reference the exact variant, engine and age against our database of 10 known issues. Combined with full MOT history analysis, mileage verification and DVLA data, you get a complete picture before viewing.
Enter the registration for MOT history, mileage verification, known faults for that exact variant, and a Get Car Wise Score.
This guide was compiled from independent expert reviews, DVSA MOT data, specialist workshops and our own database of 10 known Peugeot 3008 issues. We are not affiliated with any source listed.