Maserati GranTurismo / GranCabrio Common Problems & Reliability
One of the most beautiful GT cars of its era. Mechanically similar to the Quattroporte M139 but generally better built. The later 4.7 MC Shift and ZF Automatics are the most desirable.
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Detailed fault breakdown, symptoms, and estimated repair bills by production year.
Most Common Maserati GranTurismo / GranCabrio Faults & Repair Costs
Sticky Buttons (Polyurethane Coating Degradation)
The soft-touch polyurethane coating on window switches, radio buttons, and dashboard trim degrades into a sticky, black goo. This is a common issue across the Maserati range and requires professional restoration.
Buttons feel tacky to the touch, Black residue on fingers, Faded or unreadable button labels
- Touch all interior buttons
- Check for previous professional restoration by specialists like StickyRX or similar interior refinishers
TPMS Sensor Battery Failure
The batteries inside the tyre pressure sensors have a finite life. When they die, the car will display a permanent TPMS warning.
TPMS warning light, Incorrect or missing pressure readings
- Ensure no TPMS warnings are present on the dashboard
Coolant Hose Cracks and Leaks
A small hose under the transmission can crack over time, leading to coolant leaks and potential engine overheating. Replacement is expensive due to labour access.
Coolant warning light, Sweet smell of coolant, Visible leaks under the car
- Inspect the underside for coolant residue
- Check coolant level regularly
- Pressure test the cooling system
Buying a used Maserati GranTurismo / GranCabrio? 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.