The 2019 Peugeot 3008 is a modern crossover with known weak points in its wet-clutch automatic transmission, timing belt system on PureTech engines, and head gasket issues primarily affecting the 1.2L turbo three-cylinder. These are not minor nuisances—they're expensive failures that can strand you.
1.2L PureTech Timing Belt Failure (Wet Belt in Oil)
Common · high severityTypical onset: 40,000-80,000 mi
Symptoms: Metallic rattling at cold start from timing cover area, Check engine light with cam/crank correlation codes, Oil contamination with black rubber particles, Sudden loss of power or no-start if belt breaks
Fix: This wet timing belt runs in engine oil and deteriorates prematurely, shedding debris that clogs oil pickup and kills the engine. Requires timing belt replacement plus full oil system flush, often with oil pump and pickup tube. 8-12 labor hours. If belt fails catastrophically, it's an interference engine—expect bent valves and possible head or full engine rebuild at 25-40 hours.
Estimated cost: $1,800-3,500 for preventive replacement; $6,000-12,000 for engine rebuild after failure
EAT6 Automatic Transmission Mechatronic Failure
Common · high severityTypical onset: 50,000-90,000 mi
Symptoms: Harsh shifts or delayed engagement from park, Transmission slipping or stuck in gear, Grinding or whining from transmission during shifts, Transmission fault warnings on dash
Fix: The dual wet-clutch EAT6 suffers from mechatronic unit failures and clutch pack degradation. Clutch material contaminates fluid and clogs valve body. Repair involves transmission removal, mechatronic replacement, and often clutch pack replacement. Fluid and filter changes every 30k miles can delay but not prevent. 12-16 labor hours for full repair.
Estimated cost: $3,500-6,500
1.2L PureTech Head Gasket Failure
Occasional · high severityTypical onset: 60,000-100,000 mi
Symptoms: White smoke from exhaust on startup, Coolant loss with no visible leaks, Overheating or fluctuating temperature gauge, Milky oil on dipstick or oil cap, Rough idle and misfires
Fix: The turbocharged 1.2L three-cylinder has inadequate head bolt torque from factory and thin head gasket design. Head must be removed, resurfaced (often warped), and reassembled with upgraded multi-layer steel gasket and proper torque sequence. Timing belt should be replaced during this job. 14-18 labor hours including machining.
Estimated cost: $3,000-5,000
Transmission Oil Cooler Line Leaks
Occasional · medium severityTypical onset: 50,000-90,000 mi
Symptoms: Transmission fluid puddles under vehicle, Low transmission fluid warnings, Burnt transmission smell, Erratic shifting after highway driving
Fix: Cooler lines corrode at fittings or crack from vibration. If fluid level drops significantly, transmission overheats and destroys clutches within miles. Requires line replacement and often transmission pan removal for filter and fluid change. 3-5 labor hours depending on line location.
Estimated cost: $600-1,200
1.5L BlueHDi DPF Clogging and EGR Failure
Common · medium severityTypical onset: 60,000-100,000 mi
Symptoms: Limp mode with reduced power, DPF warning light and frequent regen cycles, Rough idle and excessive black smoke, Poor fuel economy
Fix: Short-trip driving prevents proper DPF regeneration. EGR valve carbons up and sticks open, overwhelming DPF with soot. Requires DPF cleaning or replacement plus EGR valve and cooler cleaning. Often needs forced regen cycles and software update. 6-10 labor hours for full service.
Estimated cost: $1,500-3,000
Transmission Mount Failure
Occasional · low severityTypical onset: 70,000-110,000 mi
Symptoms: Clunking when shifting into drive or reverse, Vibration felt through center console at idle, Excessive engine movement when accelerating
Fix: Hydraulic transmission mount degrades from heat and vibration. Replacement requires supporting transmission and removing mount bolts. 2-3 labor hours.
Estimated cost: $400-700
Oil Pan Gasket Leaks (1.2L and 1.5L)
Occasional · low severityTypical onset: 80,000-120,000 mi
Symptoms: Oil spots under vehicle after parking, Oil smell from engine bay, Low oil warnings between changes
Fix: Cork or rubber pan gasket hardens and leaks. Requires draining oil, removing subframe components for access, and resealing pan. 3-4 labor hours.
Estimated cost: $500-900
Avoid unless you can afford major repairs or find one with documented timing belt and transmission service—these engines and transmissions have fundamental design flaws that will cost you.
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.