Peugeot 308

The EP6FADTX is the most highly loaded variant of the Prince family (225 hp). Despite the improved chain, stretch occurs from around 100,000 km. The start-stop system generates additional load cycles on the chain.

Symptoms: Chain rattle on cold start, rough engine running, valve timing fault in OBD, power loss; if chain jumps: catastrophic damage

Exclusively direct injection at 225 hp turbo output. The high exhaust temperature and volume of oil mist cause carbon to build up particularly quickly. Intake valves and ports foul significantly faster than on weaker THP variants.

Symptoms: Noticeable power loss despite functioning turbo, increased consumption, hesitation at part throttle, misfire fault code

At 225 hp thermal load the oil control rings coke up faster. Oil consumption of 1 L/1,000 km is not unusual. In advanced cases valve stem seals and possibly piston rings need replacement.

Symptoms: Oil level drops rapidly, blue smoke under acceleration, oil-fouled spark plugs, oil smell inside the car

The high-pressure pump wears faster on the 225 hp variant due to the higher fuel pressure. In hot environments service life can drop to around 100,000 km. Without a functioning HPFP the engine will not start.

Symptoms: Engine stumbling at full throttle, power loss, starting problems, P0087 fault code, engine stalls under load

Production fault on vehicles up to serial number 14835: defective internal tank valve allows liquid fuel to enter the charcoal canister, especially after a full fill-up or on sloped ground. Remedy: complete tank replacement.

Symptoms: Sporadic stumbling and limp mode activation, especially after filling up or parking on slopes. Fault codes P1336, P1337, P1338 (misfires cylinders 1+2). Symptoms improve with a half-full tank.

The boost pressure control valve (solenoid valve N75) can fail and causes a wave-like, pulsating power output under full load, particularly in 3rd–4th gear. The fault is often misdiagnosed.

Symptoms: Wave-like, pulsating acceleration under full load (3rd/4th gear), brief power drops every few seconds. No or only sporadic fault code. Dealers sometimes suggest engine replacement even though a valve swap suffices.

On 308 models from build years 2013 and 2014 the attachment bolts on the front triangular wishbones can fracture. This can lead to uncontrollable handling. A recall was issued for affected vehicles.

A control unit governing battery charging, lighting and windscreen wipers had to be replaced as part of a recall. Early T9 models were affected.

The dual mass flywheel on the 1.6 HDi in the 308 T9 wears at higher mileages. City driving and frequent short trips accelerate wear. Replacement is recommended together with the clutch.

Brake discs on the 308 T9 are worn more than twice as often as the class average at the first two TÜV/MOT inspections. Wear is especially severe with predominantly city use.

Even on low-mileage examples, engine and gearbox on the 308 T9 develop leaks. Oil loss is a frequent TÜV/MOT failure that affects both 308 generations, but on the T9 it shows up early.

The 308 T9 AC condenser can develop leaks from stone impact or material fatigue, causing refrigerant loss and AC failure. Replacement is more expensive than on the predecessor T7 due to the tighter installation space.

On the 308 T9 — especially the SW estate — thumping from the rear axle caused by worn bearings and anti-roll bar drop links is reported. The additional weight of the estate puts more load on the rear axle.