The 2017 Peugeot 208 is a subcompact with two main powertrains: the 1.2L PureTech three-cylinder turbo (gasoline) and 1.6L BlueHDi diesel. While generally reliable in European markets, both engines have documented weak points, and the automatic transmission (EAT6) has durability concerns that become expensive after warranty.
1.2L PureTech Wet Timing Belt Failure
Common · high severityTypical onset: 60,000-100,000 mi
Symptoms: metallic rattling on cold start, oil contamination/sludge buildup, sudden loss of power, catastrophic engine failure if belt disintegrates
Fix: The timing belt runs in oil and degrades prematurely, depositing debris throughout the engine. Requires complete belt replacement, oil system flush, sometimes new oil pump and chains. If caught late, full engine rebuild or replacement needed. 8-12 hours labor for preventive replacement, 25-40 hours for engine rebuild.
Estimated cost: $1,200-2,500 preventive; $5,000-8,000 if engine damage occurs
EAT6 Automatic Transmission Mechatronic and Clutch Failures
Occasional · high severityTypical onset: 70,000-120,000 mi
Symptoms: harsh shifting or jerking, transmission slipping between gears, failure to engage drive or reverse, transmission warning light, stuck in limp mode
Fix: The dual-clutch EAT6 transmission suffers from clutch pack wear and mechatronic valve body failures. Transmission rebuild includes clutch replacement and mechatronic overhaul. Fluid and mount failures are early warning signs. 12-18 hours labor for rebuild.
Estimated cost: $3,500-6,000
1.6L BlueHDi DPF and EGR System Clogging
Common · medium severityTypical onset: 50,000-90,000 mi
Symptoms: reduced power and acceleration, excessive black smoke, frequent DPF regeneration cycles, check engine light with P2002 or P0401 codes, rough idle
Fix: Diesel engines suffer from carbon buildup in the DPF (diesel particulate filter) and EGR valve, especially with short trips. Requires DPF cleaning or replacement and EGR valve service. Sometimes intake manifold removal for carbon cleaning. 4-8 hours labor depending on severity.
Estimated cost: $800-2,200
Engine Oil Cooler Leaks and Failures
Occasional · medium severityTypical onset: 80,000-130,000 mi
Symptoms: oil in coolant (milky dipstick), coolant in oil (overheating), oil leaks near front of engine, persistent coolant loss, engine overheating
Fix: Oil cooler seals fail allowing cross-contamination between oil and coolant systems. Requires oil cooler replacement, complete fluid flush of both systems, and sometimes oil filter housing. 3-5 hours labor.
Estimated cost: $600-1,200
Cylinder Head Gasket and Warping (PureTech)
Occasional · high severityTypical onset: 80,000-150,000 mi
Symptoms: white smoke from exhaust, overheating without visible leaks, coolant consumption, rough running and misfires, oil contamination
Fix: The aluminum cylinder heads can warp from overheating or age, causing gasket failure. Requires head removal, pressure testing, resurfacing (if within spec), new gasket and bolts. If head is cracked or beyond spec, replacement needed. 10-14 hours labor for R&R and resurface.
Estimated cost: $1,800-3,500
Electrical Gremlins: Fuse Box and BCM Issues
Occasional · low severitySymptoms: intermittent no-start, random warning lights, electrical accessories cutting out, battery drain, blown fuses in engine bay fuse box
Fix: Engine bay fuse box and body control module can develop corrosion or internal failures. Diagnosis requires systematic testing; sometimes entire fuse box or BCM replacement needed. 2-4 hours diagnostic plus 1-3 hours replacement labor.
Estimated cost: $400-1,200
Pass unless you find a manual transmission diesel with full service history; the PureTech timing belt and EAT6 transmission are ticking time bombs that make ownership after 70k miles a gamble.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.