Turbo Wastegate Actuator Wear
SeriousEngineThe 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.
Most affected: All models
Typical symptoms
- •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
What to inspect before you buy
- ✓Listen for turbo flutter from the rear intakes under load
- ✓Check boost pressure readings via diagnostic tool
- ✓Inspect wastegate actuator linkage for play
- ✓Ask for turbo inspection history