The 2019 Quattroporte with the Ferrari-built 3.0L twin-turbo V6 (note: database shows 4.2L V8, but 2019s came with V6 or V8 options) shares ZF 8-speed transmission architecture with reliability concerns around cooler lines, solenoids, and mounts, plus engine issues tied to direct injection carbon buildup and occasional catastrophic bearing failures from oil starvation or deferred maintenance.
ZF 8-Speed Transmission Oil Cooler Line Failure
Common · high severityTypical onset: 40,000-80,000 mi
Symptoms: Transmission fluid puddles under vehicle, typically passenger side, Harsh shifting or slipping once fluid level drops, Transmission overheat warning on dash, Burnt smell from transmission area
Fix: Replace transmission oil cooler and associated hard lines, often requires dropping subframe for access. 6-8 labor hours, flush and refill transmission fluid, check for internal damage if driven low on fluid.
Estimated cost: $2,200-3,800
Shift Solenoid Pack Failures (ZF 8HP)
Occasional · high severityTypical onset: 60,000-100,000 mi
Symptoms: Harsh 2-3 or 3-4 upshifts, especially when cold, Limp mode with gear restriction to 3rd or 5th, Check engine light with transmission fault codes (P0775, P0777 common), Delayed engagement into Drive or Reverse
Fix: Mechatronic sleeve replacement or full valve body/solenoid pack swap. Requires transmission pan removal, software adaptation after. 4-6 hours labor if external, 12-16 hours if internal mechatronic unit failed.
Estimated cost: $1,800-5,500
Engine Bearing Failure (Spun Rod or Main Bearings)
Rare · high severityTypical onset: 50,000-90,000 mi
Symptoms: Metallic knocking or ticking that increases with RPM, Oil pressure warning light, especially at idle when hot, Metal shavings in oil filter during change, Catastrophic failure: sudden loss of power, loud bang, seized engine
Fix: Complete engine rebuild or short block replacement. 40-60 hours labor including removal, machine work, reassembly. Often tied to extended oil change intervals or low oil level operation. Some techs see this on engines that saw track use or repeated high-RPM abuse.
Estimated cost: $18,000-28,000
Direct Injection Carbon Buildup on Intake Valves
Common · medium severityTypical onset: 60,000-100,000 mi
Symptoms: Rough idle, especially cold start, Misfires under light throttle (P030X codes), Loss of power on acceleration, Poor fuel economy, stumbling between 1,500-2,500 RPM
Fix: Walnut blasting intake valves with manifold off. 8-12 hours labor depending on V6 or V8. Some shops do on-car media blasting, others pull heads. Recommend every 60k-80k mi as preventive.
Estimated cost: $1,200-2,400
Transmission Mount Failures
Common · low severityTypical onset: 50,000-90,000 mi
Symptoms: Clunk when shifting from Park to Drive or Reverse, Vibration through cabin at idle in gear, Excessive driveline movement visible during throttle application
Fix: Replace transmission mount(s), sometimes engine mounts simultaneously if degraded. 2-4 hours labor depending on access and whether subframe lowering required.
Estimated cost: $600-1,400
High-Pressure Fuel Pump Failure
Occasional · high severityTypical onset: 70,000-110,000 mi
Symptoms: Long cranking before start, especially after sitting overnight, Rough running, hesitation under acceleration, Check engine light with low fuel pressure codes (P0087, P0089), No-start condition when pump fails completely
Fix: Replace high-pressure fuel pump on engine (low-pressure in-tank pump less common failure). 3-5 hours labor, includes fuel system depressurization and priming. Some techs replace fuel filter simultaneously as preventive.
Estimated cost: $1,800-3,200
Coolant Thermostat Housing Leaks
Occasional · medium severityTypical onset: 60,000-100,000 mi
Symptoms: Coolant odor in cabin or engine bay, Slow coolant loss, need to top off every few weeks, Coolant visible on engine block or ground after parked, Fluctuating temperature gauge, overheating if ignored
Fix: Replace thermostat housing and gaskets, sometimes includes thermostat itself. 3-5 hours labor depending on V6/V8 configuration and access. Flush and bleed cooling system.
Estimated cost: $800-1,600
Buy only with comprehensive service records and pre-purchase inspection by a Maserati-familiar shop — high performance comes with high consequence when maintenance is deferred, and catastrophic engine/transmission failures can exceed vehicle value.
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.