Power transfer unit failure from oil contamination
SeriousGearbox & TransmissionThe FF's 4RM four-wheel-drive system uses a power transfer unit driven from the front of the engine. A leaking rear main seal can contaminate the PTU fluid and destroy the unit, which Ferrari treats as non-serviceable — a new PTU can cost around £30,000 fitted, while specialist rebuilds start around £8,000. Check for oil around the PTU and listen for whining from the front axle; a PTU failure can leave the car front-wheel drive only or immobile.
Oil contamination around the PTU and rear main seal area, Whining or noise from the front axle or four-wheel-drive system, Loss of four-wheel drive or the car becoming immobile
- Inspect around the PTU and rear main seal for oil leaks
- Listen for whining from the front axle during a test drive
- Ask whether the PTU has been rebuilt or replaced by a specialist