Maserati Quattroporte (M156) Common Problems & Reliability
Larger and more refined than the M139, the M156 uses V6 and V8 twin-turbo engines. It shares many components with the Ghibli and suffers from similar, though often slightly better-managed, build quality issues.
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Detailed fault breakdown, symptoms, and estimated repair bills by production year.
Most Common Maserati Quattroporte (M156) Faults & Repair Costs
Electronic Suspension (Skyhook) Faults
The adaptive dampers can develop leaks or internal sensor faults, leading to a "Suspension System Failure" warning.
Warning light on dash, Ride feeling overly stiff or bouncy, Visible oil leaking from dampers
- Cycle through the suspension modes
- Inspect the dampers for leaks during a PPI
Timing Chain Wear (If Oil Changes Neglected)
The V6 and V8 twin-turbo engines can suffer from timing chain wear if oil changes are not performed regularly. This can lead to rattling noises and potential engine damage.
Rattling noise on cold start, Check engine light, Reduced engine performance
- Listen for rattling on cold start
- Check service history for regular oil changes
- Inspect chain tensioner if possible
Infotainment System Glitches
The infotainment system (Uconnect-based) can suffer from software freezes, Bluetooth connectivity issues, and occasional screen blackouts.
Screen freezing or rebooting, Bluetooth disconnects, Navigation errors
- Test all infotainment functions
- Confirm latest software updates are installed
Window Regulator and Door Lock Faults
The window regulators and door locking mechanisms can develop faults, leading to windows that don't operate correctly or doors that won't lock/unlock properly.
Window moves slowly or gets stuck, Door won't lock/unlock with key fob, Window drops when opening door
- Test all windows and door locks
- Check for smooth window operation
- Test key fob range
Buying a used Maserati Quattroporte (M156)? Always check for hidden finance and write-off history.
Mechanical problems are only half the battle. Over 1 in 3 UK used cars checked have unpaid finance or accident write-off records that could cause you to lose the car or thousands in value.