The electronically controlled wastegate actuators on the twin IHI turbochargers can develop wear in the linkage or internal motor, leading to inconsistent boost pressure, turbo flutter sounds, and eventual loss of power. Owners report a faint fan-like flutter from the rear air intakes as an early warning sign. Complete turbo failure can follow if left unaddressed, with replacement units costing around £10,000 each.
Warning Signs:Fan-like fluttering noise from rear air intakes, Loss of boost pressure or power, Check engine light for boost-related fault codes, Uneven acceleration between left and right cylinders
Verified by IsItAGoodCar Research Team