Generations
T84 — First Generation (T84)
2008–2016
1.6 THP, 1.6 THP, 1.6 HDi, 1.6 HDi, 1.6 HDi, 2.0 HDi
Mk2 — Second Generation (Mk2)
2016–2023
1.2 PureTech, 1.6 THP, 1.5 BlueHDi, 2.0 BlueHDi
Top issues to watch for
The most serious Peugeot 3008 problems ranked by severity. We track 10 known issues — here are the ones you need to know about first.
Dangerous
Timing chain failure (T84)
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.
What happens if ignoredIf 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.
Independent garage
£1,800–£2,500
Specialist
£2,000–£3,000
Main dealer
£2,500–£4,000
Parts only
£600–£1,200
Dangerous
Timing belt (wet) issues (Mk2)
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.
What happens if ignoredWet 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.
Independent garage
£800–£1,200
Specialist
£1,000–£1,500
Main dealer
£1,400–£2,000
Parts only
£200–£400
Major
EGS gearbox issues (T84)
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.
What happens if ignoredEGS 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.
Independent garage
£1,200–£1,800
Specialist
£1,400–£2,200
Main dealer
£2,000–£3,000
Parts only
£500–£1,000
Major
DPF issues (T84/Mk2)
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.
What happens if ignoredComplete 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.
Independent garage
£400–£1,200
Specialist
£500–£1,400
Main dealer
£800–£2,000
Parts only
£200–£800
6 more known issues tracked
Including wear items, electrical niggles, and generation-specific problems.
MOT failure hotspots
Based on DVSA MOT test data. These are the items where the Peugeot 3008 fails at a significantly higher rate than the average car.
Fluid leak
Suspension · 40-60k miles
MOT failure rate: 440x the fleet average
Sample: 12,353 tests
Parking brake inefficient
Brakes · 60-80k miles
MOT failure rate: 37x the fleet average
Sample: 112,997 tests
Emissions failure
Exhaust & Emissions · 120-150k miles
MOT failure rate: 34x the fleet average
Sample: 942 tests
Brake hoses perished or damaged
Brakes · 20-40k miles
MOT failure rate: 15x the fleet average
Sample: 42,456 tests
Cable damaged or knotted
Brakes · 120-150k miles
MOT failure rate: 15x the fleet average
Sample: 508 tests
Anti-roll bar links worn
Suspension · 20-40k miles
MOT failure rate: 13x the fleet average
Sample: 155,657 tests
Looking at a specific Peugeot 3008?
Check its dealer service history to see if the maintenance that prevents these problems was actually done.
£6.99 · Full refund if no records found
Related
- Peugeot 3008 buyer's guide
- Peugeot 3008 service history check
- Peugeot 3008 service schedule & costs
- Peugeot 3008 MOT failure rates
- Peugeot 3008 price guide
- How to check Peugeot service history
- Buying a car without service history
- Peugeot 3008 car check £7.49
- Free car faults check
- Free MOT failure rate check
- Free car check
Peugeot 3008 reliability FAQs
What are the most common problems with the Peugeot 3008?
The Peugeot 3008 has 10 known issues across 3 severity levels. The most serious are: Timing chain failure (T84), Timing belt (wet) issues (Mk2).
Is the Peugeot 3008 reliable?
The Peugeot 3008 has 2 dangerous and 6 major known issues. Most can be avoided with a thorough pre-purchase check and full service history.
How much does it cost to fix Peugeot 3008 problems?
Repair costs range widely. The most significant issue (Timing chain failure (T84)) costs £1,800–£2,500 at an independent garage. Minor issues can be under £200. Always get a full inspection before buying.
Which Peugeot 3008 generation is most reliable?
The T84 (2008–2016) has the fewest dangerous issues (1). However, condition and service history matter more than generation — a well-maintained earlier car can be more reliable than a neglected newer one.