2016 PEUGEOT 308

Typical onset: 60,000-100,000 mi

Symptoms: harsh shifting or flaring between gears, transmission slipping in 3rd or 4th gear, limp mode with trans fault codes, delayed engagement when cold, metallic debris in fluid

Fix: The 4-speed AL4 or 6-speed EAT6 automatics suffer valve body wear and clutch pack failures. Fluid changes every 30k can delay but not prevent. Rebuild takes 12-16 hours, often uneconomical. Used transmissions common solution at 8-10 hours swap time.

Estimated cost: $2,800-5,500

Typical onset: 50,000-90,000 mi

Symptoms: transmission fluid leaking near radiator area, transmission overheating warnings, pink fluid pooling under engine bay, burnt transmission smell after highway runs

Fix: Cooler lines corrode where they connect to radiator, or cooler itself develops pinhole leaks. Replace lines and cooler as assembly, flush system. 2-3 hours labor plus system refill and relearn procedure.

Estimated cost: $450-850

Typical onset: 40,000-80,000 mi

Symptoms: heavy clunk when shifting from park to drive, excessive engine movement visible when revving, vibration at idle that smooths at speed, knocking from engine bay over bumps

Fix: Hydraulic engine mounts and transmission mount fail early due to soft compound. Transmission mount particularly bad. Front mount 2 hours, trans mount 3-4 hours due to subframe access. Replace all three mounts together to avoid repeat visits.

Estimated cost: $600-1,200

Typical onset: 80,000-130,000 mi

Symptoms: rattling from front of engine on cold start, check engine light with cam/crank correlation codes, rough idle and loss of power, metal shavings in oil filter

Fix: Prince/THP engine timing chain stretches, tensioner weakens. Requires front engine disassembly, chain kit, guides, tensioners, water pump while in there. 10-14 hours labor. Catastrophic if chain jumps. Oil changes every 5k miles critical for prevention.

Estimated cost: $2,200-3,800

Symptoms: one headlight out or flickering, headlight error on dash, intermittent low beam operation, moisture visible inside headlight housing

Fix: LED driver modules overheat and fail, entire headlight assembly usually replaced as unit since modules not sold separately by Peugeot. Aftermarket alternatives exist but fit issues common. 1-2 hours per side. Both often fail within 6 months of each other.

Estimated cost: $800-1,600

Symptoms: random electrical gremlins - windows, wipers, HVAC, no start with multiple warning lights, corroded terminals visible in fuse box, failures after rain or car wash

Fix: Fuse box seal deteriorates, water enters from cowl area. Clean and reseal if caught early (1 hour). Box replacement if terminals corroded: 3-4 hours for box plus diagnosing affected circuits. Chase down water entry point or it repeats.

Estimated cost: $400-1,200

Typical onset: 70,000-110,000 mi

Symptoms: long cranking before start especially when hot, loss of power under acceleration, fuel pressure fault codes, engine stalling at idle or low speed

Fix: Direct injection high-pressure pump on 1.6 THP fails, scatters metal through fuel system. Requires pump, injectors often damaged, fuel rail flush. 6-8 hours labor. Use top-tier fuel and replace fuel filter every 30k to reduce risk.

Estimated cost: $1,800-3,200