Common Problems with the
2018 Peugeot 5008 (Gen 2)

The 1.2 PureTech three-cylinder petrol engine utilises a wet timing belt running bathed in engine oil. The rubber belt degrades over time due to fuel dilution and heat cycles, shedding rubber debris into the oil sump. This debris clogs the oil pickup strainer, causing oil starvation, vacuum pump failure, and dangerous loss of brake servo assistance (Recall R/2020/331), leading to engine destruction if neglected.

On 1.5 and 2.0 BlueHDi diesel models, the selective catalytic reduction (SCR) AdBlue tank houses an integrated pump, heating element, and urea level sensor. Crystallisation of urea solution and internal circuit board failure cause delivery failure, illuminating the UREA warning lamp and initiating a non-restart countdown (commencing at 700 miles). Because the tank is a sealed unit, complete replacement of the tank assembly is required.

The 1.5-litre BlueHDi (DV5R) 16-valve engine fitted from late 2017 utilizes an internal 7mm chain to connect the twin camshafts. Inadequate lubrication tolerance and high stress lead to premature chain stretch, rattling, and sudden breakage. Chain failure bends valves, shears camshaft carriers, and destroys the cylinder head. Stellantis issued a special coverage programme and upgraded replacement kit with an 8mm chain and redesigned cylinder head housing.

The 5008 features an 8-inch or 10-inch central touchscreen paired with a 12.3-inch digital instrument cluster. Software glitches in the NAC telematics unit cause screen freezes, blackouts, sluggish response, and random reboots. Because heating, air conditioning, and seat ventilation controls are routed solely through the central screen, software crashes render cabin temperature adjustments impossible while driving.

As a full seven-seat SUV capable of carrying heavy passenger loads, the 5008 places high stress on its rear coil springs, shock absorbers, and trailing-arm axle bushes. In UK conditions, road salt and potholes cause rear coil springs to crack (especially the bottom pigtail coil), while deteriorated beam bushes cause dull knocking over speed humps and excessive rear tyre inner-edge scrubbing.

On Allure Premium, GT Line, and GT models equipped with hands-free powered tailgates, the motorised lift struts and latch mechanism frequently suffer mechanical or electrical failure. Water ingress into electric strut motors or internal gear stripping causes the tailgate to stop mid-travel, emit continuous warning beeps, refuse to latch shut, or drop suddenly, creating frustration on a high-utility seven-seater.