Peugeot 208 P21 1.5 BlueHDi

The DV5 1.5 BlueHDi uses a timing chain whose early 7mm-pitch version is known to wear prematurely, driven by soot accumulation in the oil acting as an abrasive. Forum reports (peugeotforums.com, berlingoforum.com) describe stretch and rattle well before the quoted 240,000 km service life, with some cases below 80,000 km. Symptoms start as a metallic rattle on cold start, progressing to a timing fault code and, in the worst cases, chain skip with bent valves and destroyed pistons. Stellantis revised the chain to an 8mm-pitch design and issued a worldwide recall (UK reference 11/061/24, November 2024) alongside a goodwill support programme: since January 2023 repairs are covered 100% up to 5 years / 150,000 km, extended in January 2025 to 7 years / 180,000 km, and in June 2025 to 10 years / 240,000 km — provided full service history with approved oils. Chain kit + labour at a specialist is €1,500-2,500; a new engine (typical dealer quote if chain snapped) is €6,000-7,000. Eligibility for the programme is the single most important factor on any used example.

The AdBlue tank on the 1.5 BlueHDi integrates the heater, pump, pressure sensor and level gauge. Urea crystallisation (especially in winter or after long standstill), pump seizure and heater failure are all widely reported on Peugeot and Citroen forums. Once SCR faults are logged, the ECU starts an irreversible countdown that prevents restart once it reaches zero. The module is not repairable: Stellantis only supplies the complete tank assembly at €900-1,400 in parts plus 3-5 hours of labour, for total bills of €1,200-2,500 at dealers (slightly cheaper at specialists). Using high-quality AdBlue, avoiding long storage with an empty tank, and running the car hot regularly all help. Some cars may still be inside the 2-year factory or manufacturer goodwill window — check before paying.

Like all modern diesels, the 1.5 BlueHDi needs a 15-20 minute run at motorway speeds every few hundred kilometres for passive DPF regeneration. Owners who predominantly do short urban trips, as the 208 is often used, see the 'risk of particle filter clogging' message, followed by active regeneration failures and limp mode. A successful motorway drive usually resolves an early warning for free. Forced regeneration at a specialist is €150-300, chemical DPF cleaning in-situ is €300-500, and removal for off-car cleaning runs €500-900. Replacement is €1,200-2,000 with labour. Check the DPF differential pressure live data during a test drive — above 30 mbar at idle on a hot engine is a warning sign.

The high-pressure EGR on the DV5 fouls with a sticky mix of soot and oil mist, eventually sticking the valve shut (no boost fault) or open (rough idle, smoke). Symptoms appear mainly above 80,000-120,000 km and on cars that see a lot of short journeys. Cleaning at a specialist is €150-300 if the valve is still serviceable, but replacement of the EGR valve runs €500-800 and a new EGR cooler €800-1,400. An intake manifold clean is often recommended at the same time. Regular motorway driving and using good-quality fuel slow the build-up.

The P21's touchscreen is prone to freezing, rebooting or going black, particularly in ambient temperatures above 25 C or in direct sun. Peugeot has issued a TSB and several software updates. A poorly-seated infotainment cooling fan is a common cause, with DIY fan replacement around €100-150. Persistent cases need a software update or full head unit replacement (€500-800 at a dealer). Temporary workarounds: pull fuse 18 for one minute, or hold the phone button for 10+ seconds.

Injector faults on the 1.5 BlueHDi are less widespread than on older 1.6 HDi units but still occur, often triggered by contaminated or low-quality diesel. Typical symptoms include rough running, smoke, injector balance codes and loss of power. One or two injector replacements run €400-1,000 at a specialist (parts €180-300 each, plus programming). Full set replacement with programming reaches €1,500-2,000. Regular use of premium diesel and fresh fuel filters at service intervals is the main prevention.

The electric parking brake actuator on the rear caliper can fail, usually giving a 'parking brake fault' message and refusing to release. This is a known Stellantis-wide issue across 208, 2008, 3008, Corsa F and C3. Replacement actuator runs €180-280 per side plus about 1.5 hours labour. Not a safety-critical failure if caught early, but leaving it can seize the caliper itself, turning a €300 fix into a €600-700 job.