2018 PEUGEOT 208

Typical onset: 40,000-80,000 mi

Symptoms: Metallic rattling on cold start that fades after warm-up, Oil consumption increase (belt debris contaminating system), Check engine light with cam/crank correlation codes, Catastrophic engine failure if belt disintegrates (valves meet pistons)

Fix: This timing belt runs IN the engine oil, and premature wear is endemic across PureTech engines. Belt debris circulates through oil system, requiring complete flush. Preventive replacement at 40-50k mi recommended despite factory 100k interval. Job requires special tooling for wet-belt extraction, new oil pump (driven by belt), full oil system flush, and sometimes cam phaser replacement. 8-12 hours labor depending on contamination extent.

Estimated cost: $2,200-3,800

Typical onset: 50,000-90,000 mi

Symptoms: Harsh engagement from standstill, especially in reverse, Shuddering during low-speed acceleration (parking lot maneuvers), Grinding or clunking when shifting between gears, Transmission fault warning and limp mode

Fix: The EAT6 is essentially a manual transmission with automated clutch actuation. Dual dry clutch packs wear rapidly in stop-and-go driving. Mechatronic unit failures also common. Clutch replacement requires transmission removal, flywheel resurfacing often needed. Mechatronic unit replacement is 6-8 hours; full clutch job is 10-14 hours. Many units need both by 80k miles. Adaptive reset procedure mandatory after repairs.

Estimated cost: $2,800-5,500

Typical onset: 60,000-100,000 mi

Symptoms: Loss of power and reduced performance, Excessive black smoke on acceleration, Frequent DPF regeneration attempts (engine runs hotter, poor fuel economy), Check engine light with P2002 (DPF efficiency) or P0401 (EGR flow) codes

Fix: Short-trip driving accelerates carbon buildup in diesel particulate filter and EGR valve. DPF cleaning (off-car chemical/baking) runs 4-6 hours; replacement DPF is 3-4 hours plus expensive OE part. EGR valve removal and cleaning is 2-3 hours but often reveals cracked valve requiring replacement. Intake manifold typically needs walnut blasting for carbon removal. Software updates available for some VINs to adjust regen strategy.

Estimated cost: $1,200-3,200

Typical onset: 70,000-120,000 mi

Symptoms: Coolant loss with no visible external leaks, White smoke from exhaust (sweet smell), Overheating under load or extended idling, Milky oil on dipstick or oil cap (coolant mixing with oil)

Fix: Head gasket failures on PureTech engines often stem from thermal stress or timing belt contamination damage. Cylinder head removal requires 12-16 hours, head must be pressure-tested and typically needs resurfacing (add 4 hours machine shop time). Timing belt and water pump replacement mandatory during reassembly. If head warpage exceeds spec, replacement head adds $1,200-1,800 to parts cost. Engine flush and multiple oil changes required post-repair.

Estimated cost: $3,500-5,800

Symptoms: Intermittent electrical faults (wipers, headlights, fuel pump), Multiple warning lights appearing simultaneously, No-start condition after rain or car wash, Corroded terminals visible in fuse box

Fix: Fuse box mounted near windshield base vulnerable to water intrusion from clogged cowl drains or degraded seals. Drain cleaning preventive, but once corrosion sets in, fuse box replacement often necessary. Some terminals can be individually replaced with careful soldering (3-5 hours diagnostic and repair), but full box replacement is 4-6 hours with coding required. Clear cowl drains every 12 months preventively.

Estimated cost: $800-1,900

Typical onset: 80,000-130,000 mi

Symptoms: Transmission fluid spots under vehicle (red or brown fluid), Slipping gears or delayed engagement when transmission is hot, Burning smell during extended driving, Low transmission fluid warning if equipped

Fix: Cooler lines to radiator-mounted transmission cooler develop leaks at crimp fittings or corrode through. Line replacement is straightforward (2-3 hours) but requires transmission fluid flush and refill with specific Aisin fluid. External cooler upgrade recommended for high-temperature climates. Some techs add auxiliary cooler during repair to extend clutch life.

Estimated cost: $450-850