ERAD (Electric Rear Axle Drive) Failure
SeriousGearbox & TransmissionPlug-in hybrid (Recharge/T8) models can suffer from rear electric motor failure, often caused by internal coolant ingress or bearing wear. This is a "known issue" on the SPA platform where coolant leaks into the motor housing, eventually shorting the unit or destroying the bearings.
High-pitched whining or grinding from the rear, "Propulsion System Service Required" warning, Total loss of electric-only drive mode
- Drive in pure electric mode and listen for rear-axle noise
- Check for hybrid system warnings
- Ask if the ERAD has the improved "Gen 2" motor or has had a coolant-seal inspection