Citroën C5
First PSA V6 diesel with 204 hp. Predecessor of the 3.0 HDi V6, also automatic-only. Complex and maintenance-intensive, but very refined running.
Refined C6 V6
204 hp 2.7 V6 in the C6 — with hydropneumatics a gentle glide; more refined than many executive-class rivals.
Engine Weaknesses 6
The common-rail injection system in the Jumpy II 2.0 HDi starts showing weaknesses from 80,000–120,000 km. High-pressure pump failure sends metal swarf to the injectors. A complete fuel system flush is mandatory after pump failure.
Symptoms: Difficult starting, power loss, rough idle, metallic odour in fuel.
The variable geometry turbo on the Jumpy II suffers from soot deposits on the vanes, especially in city use. Actuator faults lead to power loss or overboost (limp mode). Regular motorway driving prevents this.
Symptoms: Limp mode, power loss, whistling, black smoke under load.
The timing chain of the 2.7 HDi V6 (UHN/DT17TED) stretches similarly to the 3.0 HDi UHZ. Timing becomes inaccurate, causing power loss and in extreme cases valve contact. Expensive to repair as V6 tooling and V6 chains are required.
Symptoms: Rattling on cold start, rough idle, engine warning light with camshaft fault, missing power in the upper rev range.
Both turbochargers of the 2.7 HDi V6 receive insufficient lubrication due to oil sludge. Sludge blocks the oil strainer in the supply line. Typical after long oil change intervals or predominantly short-trip operation.
Symptoms: Whistling from one or both turbos, blue smoke, increased oil consumption above 0.5 L/1000 km, noticeable power loss in the upper rev range.
Commercial operation with frequent city driving and stop-and-go clogs the EGR valve particularly quickly. EGR faults occur more frequently than in private-car use of the same engine. Cleaning or replacement interval shortens to 60,000–80,000 km.
Symptoms: Engine warning light, stumbling, increased fuel consumption, power reduction.
The ball joint on the swirl flap actuator of the 2.7 HDi V6 breaks. The swirl flaps are then no longer operated correctly, leading to power loss and limp mode. A frequent cause of power loss on the 607 2.7 HDi.
Symptoms: Power loss at part load, engine limp mode under load, stumbling on acceleration, swirl flap fault message. Vehicle sometimes shows turbo problems that clear after reset.
Vehicle Weaknesses 5
The optional Hydractive 3+ suspension (standard on Exclusive trim) in the C5 II starts leaking at spheres and cylinders from around 80,000 km. A 'Suspension defective' message appears and the car limits top speed to 90 km/h.
The electric power steering in the C5 II is connected to the BSI control unit. BSI faults or ECU problems cause the power assistance to fail. A frequently reported issue is sudden loss of assist while the engine is running.
The automatic gearbox in the C5 II (2008–2017) shows typical problems pulling away from standstill. Only after firm throttle input does the gearbox engage properly. A gearbox flush or software update often helps, but solenoids are due at higher mileages.
The 2016 MOT report documents above-average frequency of tie rod wear and increased driveshaft wear on the C5 II. Tyre inner edge wear and clunking in corners are typical symptoms.
According to MOT reports, the C5 II frequently shows oil leaks at engine and gearbox seals as well as occasional BSI control unit problems. Faulty EGR valves cause short-circuit risks at the starter cable connection (recall 2013–2017).
