Summary
The Maserati Quattroporte has 26 recalls spanning the 2005 through 2018 model years, with the most serious being incomplete front subframe welds on 2018 models that can break under load, compromising handling and raising the risk of a crash.
The 2018 model year also has two separate fuel system concerns: a fuel delivery pipe in the engine compartment and fuel line quick connectors that can leak, both creating a fire risk near ignition sources. On 2014 through 2017 models, adjusting the front power seats can wear through the seat wiring harness and cause an electrical short that raises a fire risk. The 2017 model year has additional concerns: on V6-equipped vehicles, a software fault can cause the transmission to slip unexpectedly into neutral or park, or shut the engine off in stop-and-go traffic. A loose rear differential pinion nut on some 2017 models can allow the pinion gear to bind, locking the rear wheels. Also on 2017 models, the backup camera can stop displaying its image in below-freezing temperatures. On 2015 through 2017 Quattroporte GTS models with the V8 3.8-liter engine, a fuel pump resistor can fail, cutting engine power or stalling the vehicle. The 2014 and 2015 model years have a fuel line damage issue from production that can cause a fuel leak and fire, and 2014 models have an additional fuel line contamination problem with the same consequence. A 2014 recall covers an incorrect gear position display that can lead drivers to believe the transmission is in park when it is not, putting them at risk when exiting the vehicle. Rear tie-rod bolts on 2014 through 2016 models may not have been properly tightened at the factory, allowing the tie rod to separate from the hub and cause a sudden loss of control.
Going further back, 2009 models have rear suspension tie rods that can fatigue and fail, again resulting in a loss of directional control, and a software fault in the instrument cluster can prevent the seatbelt reminder chime from sounding. The 2007 model year has an anti-lock brake and stability control software error that causes the system to drop out during high-speed braking or cornering. On 2006 models, incorrectly torqued ball joint nuts can loosen and eventually cause suspension arm separation, and the power steering rack contains an O-ring that can shift out of position during hard left turns, reducing steering assist. The 2005 model year has rear suspension tie rods that can corrode and snap, suspension ball joint nuts that may have been under-torqued and can loosen enough to cause a loss of control, and a door handle wiring fault that can unlatch a door without occupant input at speeds below about 6 mph.
