The 2025 Daihatsu Taft is a kei-class mini SUV with a small-displacement 660cc 3-cylinder engine (naturally aspirated or turbo). Being essentially new to market, most documented issues mirror known weaknesses in Daihatsu's KF engine family carried over from previous platforms—specifically timing chain stretch, lifter noise, and head gasket seepage on higher-mileage examples.
Timing Chain Stretch and Guide Wear
Common · high severityTypical onset: 80,000-120,000 mi
Symptoms: Rattling or whirring noise on cold start that disappears after warmup, Check engine light with cam/crank correlation codes (P0016, P0017), Rough idle and hesitation during acceleration
Fix: Replace timing chain, guides, tensioner, and oil control valve. Small engine bay makes access tight—expect 6-8 hours labor. Critical to address early; stretched chain can jump teeth and cause catastrophic valve-to-piston contact.
Estimated cost: $1,200-2,000
Hydraulic Valve Lifter Noise and Failure
Common · medium severityTypical onset: 60,000-100,000 mi
Symptoms: Persistent ticking or tapping from valve cover, loudest at idle, Noise increases with engine temperature, Loss of power if lifter collapses completely
Fix: Replace all lifters (12 total on KF engine). Requires cam removal and careful valve clearance inspection. Budget 5-6 hours. Use OEM lifters only; aftermarket have high failure rate. Oil change interval matters—owners who stretch intervals beyond 5k miles see this sooner.
Estimated cost: $800-1,400
Head Gasket Seepage (Turbo Models)
Occasional · medium severityTypical onset: 70,000-110,000 mi
Symptoms: Oil weeping from cylinder head to block mating surface, Slight coolant loss without visible leaks, White residue or crusty buildup near head gasket edge
Fix: Full head gasket replacement. On turbo KF engines, small combustion chamber means head warpage is common if overheated even once. Must measure head flatness—resurfacing adds $150-250. Factor 8-10 hours labor for R&R, plus machine work time. Replace head bolts (torque-to-yield type).
Estimated cost: $1,800-2,800
CVT Transmission Oil Cooler Clogging
Occasional · medium severityTypical onset: 50,000-80,000 mi
Symptoms: Transmission slipping or shuddering during acceleration, Delayed engagement when shifting from park to drive, Burnt smell from transmission area after highway driving
Fix: Cooler passages clog with CVT debris, causing overheating. Replace cooler and flush transmission lines. Also replace CVT fluid and filter. 3-4 hours labor. This is preventable—CVT fluid should be changed every 30k miles despite 'lifetime fill' claims in manual.
Estimated cost: $600-1,100
Harmonic Balancer Deterioration
Rare · high severityTypical onset: 90,000-130,000 mi
Symptoms: Severe vibration at idle that worsens with RPM, Visible wobble of crankshaft pulley, Squealing from serpentine belt area as pulley separates from hub
Fix: Rubber isolator between pulley and hub delaminates. If it fails completely, pulley can strike timing cover or shear crankshaft nose. Replacement is straightforward but requires harmonic balancer puller tool. 2-3 hours labor. Inspect carefully during timing chain jobs.
Estimated cost: $400-700
Transmission Mount Failure
Common · low severityTypical onset: 60,000-90,000 mi
Symptoms: Clunking when shifting into gear, Excessive engine movement visible when accelerating or braking, Vibration transmitted into cabin at idle in drive
Fix: Lower transmission mount tears due to constant CVT operation. Simple replacement, 1.5-2 hours. Common wear item on small-displacement CVT vehicles. Replace both engine and trans mounts together to avoid imbalanced NVH.
Estimated cost: $300-500
Solid urban runabout if maintained obsessively; skip high-mileage examples unless timing chain and CVT service history is documented—deferred maintenance kills these engines fast.
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.