Powertrain
generic / SAE
P05FD
Turbocharger Boost Control A Temperature Too High
The boost control actuator A reports excessive operating temperature - typically heat soak from the turbo housing, prolonged high-load operation, or insufficient cooling. Boost is derated to protect the actuator electronics.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number5 / FD
Possible causes
- Heat soak from turbo housing high
Symptoms
- Charge status indicator shows fault
- Charging may not start or interrupts
- Slower-than-expected charge rate
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 300–1500 €
- Estimated time: 1.5–5 h
- Component: turbocharger a actuator
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012