2017 PEUGEOT 5008

Typical onset: 40,000-80,000 mi

Symptoms: metallic ticking from timing cover, oil contamination in coolant, check engine light with cam/crank correlation codes, catastrophic engine failure if belt disintegrates

Fix: Early PureTech 1.2L three-cylinders used a timing belt running in oil bath that deteriorates prematurely, shedding material into oil galleries and destroying bearings. Requires complete timing system replacement, oil system flush, sometimes full engine rebuild if debris circulated. 8-12 hours labor for timing work alone, 25+ hours for rebuild. PSA issued extended warranty for some VINs but coverage expired on most 2017s.

Estimated cost: $2,800-4,500 for timing repair, $6,500-9,000 for engine rebuild

Typical onset: 60,000-100,000 mi

Symptoms: harsh engagement from stop, shuddering during 2-3 or 3-4 shifts, delayed upshifts under light throttle, transmission overheating warnings, limp mode with P17XX codes

Fix: The Aisin EAT8 automatic transmission suffers from premature clutch pack wear and valve body solenoid failures, especially in vehicles used for frequent stop-and-go or towing. Fluid degradation accelerates issues—many owners never change ATF per PSA's misguided 'lifetime fill' claim. Solenoid replacement requires valve body removal (6-8 hours), clutch pack work means transmission out (12-16 hours). Fluid-and-filter service every 40k miles prevents worst cases.

Estimated cost: $1,200-2,200 for solenoid/valve body work, $3,500-5,500 for clutch replacement

Typical onset: 50,000-90,000 mi

Symptoms: persistent DPF warning light, loss of power under acceleration, excessive fuel consumption, forced regeneration cycles failing, strong diesel smell during regen attempts

Fix: Diesel particulate filters on 1.5 and 2.0 BlueHDi engines clog rapidly with short-trip driving patterns. Differential pressure sensors fail frequently, triggering false warnings. Real clogs require forced shop regeneration (1.5-2 hours) or DPF replacement if ash-loaded beyond recovery. Injector failures compound the problem by dumping excess fuel. DPF delete not legal in most markets. Preventive: monthly 30+ minute highway runs at 2500+ RPM.

Estimated cost: $350-600 for forced regen and sensor, $1,800-2,800 for DPF replacement

Typical onset: 70,000-110,000 mi

Symptoms: oil spots on driveway centered under engine, oil seepage visible at bell housing junction, low oil level warnings despite recent top-offs, clutch contamination on manual variants

Fix: Both gasoline and diesel engines develop rear main seal leaks as miles accumulate, exacerbated by crankcase pressure issues from clogged PCV systems. On FWD automatics, requires transmission removal to access (8-10 hours). Oil pan gaskets fail separately from corrosion and undertray vibration. Both jobs benefit from concurrent timing service if mileage warrants. Always replace PCV valve and clean crankcase ventilation during rear main work.

Estimated cost: $900-1,400 for rear main, $450-700 for oil pan gasket

Symptoms: transmission fluid leaking near radiator area, pink or red fluid visible on subframe, transmission temperature warnings, limp mode if fluid level drops critically

Fix: Steel transmission cooler lines routed along subframe corrode through from road salt exposure, especially in rust-belt regions. Leaks develop slowly then catastrophically fail. Once compromised, entire transmission at risk from starvation or contamination if coolant cross-contaminates. Requires line replacement plus full fluid exchange (3-4 hours). Inspect lines annually in salt states and coat with rust inhibitor.

Estimated cost: $600-1,100

Typical onset: 60,000-100,000 mi

Symptoms: rough idle when cold, hesitation on acceleration, black smoke from exhaust, P0400-series EGR flow codes, reduced fuel economy

Fix: BlueHDi engines recirculate exhaust heavily for NOx control, causing rapid carbon accumulation in EGR valve, intake manifold, and intake ports. EGR valve sticks partially open or closed. Cleaning involves manifold removal, valve replacement, and walnut-blasting intake ports (5-7 hours total). Some shops offer chemical cleaning with mixed results. Interval: every 60k miles on diesel variants to maintain drivability.

Estimated cost: $700-1,300