2017 FIAT 500 ABARTH

Typical onset: 60,000-100,000 mi

Symptoms: Knocking or rattling from bottom end at idle, Metal flake in oil, Low oil pressure warning, Sudden catastrophic engine failure

Fix: The #4 cylinder rod bearing is notorious for premature wear, often from oil starvation during hard cornering or aggressive driving. Requires engine removal, full teardown, crankshaft polishing or replacement, new bearings throughout, and reassembly. Expect 18-25 labor hours. Many opt for short block replacement instead of rebuilding.

Estimated cost: $4,500-8,000

Typical onset: 50,000-90,000 mi

Symptoms: Transmission fluid puddle under car, Burnt transmission smell, Slipping or harsh shifts, Trans temp warning light

Fix: The quick-connect fittings at the cooler corrode and leak, mixing coolant and ATF or causing low fluid levels. If caught early, replace cooler and lines (3-4 hours). If driven low on fluid, expect internal trans damage requiring rebuild or replacement (12-16 hours). Flush cooling system afterward.

Estimated cost: $600-1,200 (lines/cooler), $3,500-5,500 (transmission damage)

Typical onset: 70,000-120,000 mi

Symptoms: Check engine light with cam/valve timing codes, Rough idle and misfires, Loss of power, Metallic ticking from cylinder head

Fix: The electro-hydraulic valve actuation system depends on clean oil and frequent changes. Sludge or component wear causes solenoid or actuator failure. Requires cylinder head removal, replacement of MultiAir unit and often cam followers (12-16 hours). If piston damage occurred from valve contact, full engine rebuild needed.

Estimated cost: $2,800-4,500 (head work), $6,000+ (if internal damage)

Typical onset: 40,000-80,000 mi

Symptoms: Rattling sound on cold start or light throttle, Overboost or underboost codes, Loss of power above 3,000 rpm, Check engine light

Fix: Wastegate actuator rod bushings wear out, causing rattle and eventual boost control loss. Turbo replacement or rebuild required (5-7 hours). Aftermarket options exist but stock replacement is typical repair. Often accompanied by intake manifold gasket replacement while you're in there.

Estimated cost: $1,200-2,200

Typical onset: 50,000-90,000 mi

Symptoms: Clunking on acceleration or deceleration, Excessive engine movement visible from engine bay, Vibration at idle, Shifter vibration

Fix: The passenger-side engine mount and rear transmission mount are hydraulic and fail frequently, especially with spirited driving. Front mount also tears. Replace all three as a set for best results (3-4 hours total). OEM recommended over cheap aftermarket.

Estimated cost: $600-1,000

Typical onset: 60,000-100,000 mi

Symptoms: Hard starting when hot, Stumbling or hesitation under load, Fuel pressure codes, Limp mode activation

Fix: In-tank low-pressure pump or filter screen clogs, starving the high-pressure pump. Requires fuel tank drop and pump module replacement (4-5 hours). Sometimes related to contaminated fuel. High-pressure pump on engine can also fail but less common.

Estimated cost: $800-1,400

Typical onset: null

Symptoms: White smoke from exhaust, Coolant loss with no visible leak, Overheating, Oil in coolant or vice versa

Fix: Usually secondary to another failure (bad thermostat, cooler leak, or overboost). Requires head removal, resurfacing, new gasket, timing components, and MultiAir service (10-14 hours). If block is warped or piston damage exists, escalates to full rebuild.

Estimated cost: $2,500-4,000 (gasket only), $6,000+ (if internal damage)