P3471Cylinder Deactivation Hydraulic Circuit Bank 2 Performance
The engine control module has detected a performance fault in the bank 2 hydraulic circuit used for cylinder deactivation. Oil pressure response or actuation timing falls outside the expected window during deactivation events on bank 2, often caused by viscosity issues, internal leaks or worn switching lifters.
Can I keep driving? With caution
You can drive to the shop, but do not postpone the repair. The problem may worsen and damage other components.
Sistema Afectado
Motor · Powertrain
La falla pertenece al grupo motopropulsor (motor y gestión electrónica).
Espacio para vendedores de repuestos
Aún no hay un anunciante en este espacio.
Possible Causes
The components or conditions that trigger this code
- 1Incorrect oil viscosity or aged oil Switching lifter worn or sticking Internal oil leak in deactivation circuit
How to Fix It — Step by Step
Recommended diagnostic and repair procedure
- 1Difficulty: shop_only. Estimated time: 2-12 hours. Estimated cost: €300-€
- 2Professional repair recommended
Note: This information is for general reference. For precise diagnostics and safety repairs, always consult a certified mechanic.
Estimated Cost
Approximate range in USD (varies by region and shop)
Varies by diagnosis
* Diagnosis only: $50–$150
Quick Info
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