Peugeot 508 (Gen 1) Common Problems & Reliability
The first-generation Peugeot 5008 (2009–2016) established itself as a versatile seven-seater MPV, designed to offer practical family transport with a spacious and flexible cabin. While its interior modularity and comfort were highly praised, its reliability record in the UK is heavily influenced by the choice of engine and the rigor of its past maintenance. Prospective owners must recognize that this vehicle, while capable, requires a disciplined approach to preventative servicing to remain a dependable part of a family’s transport needs. The mechanical landscape of the 5008 Gen 1 is polarized. The 1.6-litre THP petrol engine, developed in collaboration with BMW, is notoriously sensitive, with frequent reports of timing chain stretch—often heralded by a distinct rattling sound on startup—and carbon buildup on the intake valves leading to performance degradation. Conversely, the diesel powertrains, particularly the 2.0-litre HDi, are generally more robust over high mileages, provided that the Diesel Particulate Filter (DPF) system is not compromised by an over-reliance on short, low-speed urban journeys. For all diesel models, strict adherence to oil change intervals is the single most important factor in preventing premature turbocharger failure. Electrical complexity is a defining feature of the 5008 Gen 1, with the electronic handbrake being a frequent failure point that can require costly actuator or control module intervention. Furthermore, owners often report issues with the infotainment interface and the BSI central control module, which can be susceptible to water ingress or software-related erratic behavior. Prospective buyers are strongly advised to seek out vehicles with a comprehensive, documented service history, specifically looking for evidence of regular maintenance on the diesel particulate systems and the cooling components. With proactive care, the 5008 can still serve as a capable family MPV, but it is not a "fit-and-forget" vehicle.
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Detailed fault breakdown, symptoms, and estimated repair bills by production year.
Most Common Peugeot 508 (Gen 1) Faults & Repair Costs
1.6 HDi/BlueHDi turbo and DPF issues
Needs strict oil changes to protect the turbo.
AdBlue System Faults (BlueHDi)
The AdBlue tank, pump and injector on later BlueHDi models can fail, triggering UREA warnings and eventually a non-start countdown. Replacing the complete tank assembly is the usual fix and is costly.
UREA warning light, Engine management light, No-start countdown
- Check for emissions warning lights
- Ask about AdBlue system repairs
Electric Power Steering (EPAS) Failure
The electrically-assisted steering can develop heavy or unassisted feel at low speed. The EPAS column is a known PSA weak point on this generation.
Heavy steering at low speed, Power steering warning light, Intermittent loss of assistance
- Test steering at low speed and during parking
- Check for power steering warning light
Rear Suspension Bush Wear
The rear suspension trailing arm bushes wear prematurely on UK roads, causing a knocking noise from the rear over bumps and vague handling at speed. This is a common MOT advisory item.
Knocking from the rear over bumps, Vague rear-end feel at motorway speed, Uneven rear tyre wear
- Inspect rear bushes for play or cracking
- Check MOT history for rear suspension advisories
Buying a used Peugeot 508 (Gen 1)? Always check for hidden finance and write-off history.
Mechanical problems are only half the battle. Over 1 in 3 UK used cars checked have unpaid finance or accident write-off records that could cause you to lose the car or thousands in value.