Turbo/Supercharger Wastegate Actuator Stuck Closed
2012-2015 BMW 320i 2.0L I4 Turbo N20
Description
The wastegate actuator is stuck in the closed position, causing excessive boost pressure. This is a critical condition that can cause engine damage.
Symptoms
- Check Engine Light
- Overboost condition
- Engine knock/detonation
- Boost pressure beyond specification
- Possible engine damage if not addressed
- Fuel enrichment at full boost
Common Causes
- Wastegate actuator rod seized closed
- Actuator solenoid stuck energized
- Wastegate valve carbon welded shut
- Control rod bent or binding
- PCM commanding max boost erroneously
Diagnostic Steps
- Check boost pressure immediately - compare to spec
- Inspect wastegate actuator rod movement
- Test actuator solenoid de-energized state
- Check for carbon deposits seizing valve
- Review PCM boost target values
Repair Notes
Immediately address to prevent engine damage. Replace wastegate actuator. Inspect turbo and engine for damage from overboost.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P3005 on Other Vehicles
Common Questions
What does code P3005 mean on a 2012-2015 BMW 320i?
P3005 stands for "Turbo/Supercharger Wastegate Actuator Stuck Closed". The wastegate actuator is stuck in the closed position, causing excessive boost pressure. This is a critical condition that can cause engine damage.
What are the symptoms of P3005 on a BMW 320i?
Common symptoms of P3005 include: Check Engine Light, Overboost condition, Engine knock/detonation, Boost pressure beyond specification, Possible engine damage if not addressed, Fuel enrichment at full boost.
What causes P3005 on a 2012-2015 BMW 320i?
Common causes of P3005 include: Wastegate actuator rod seized closed, Actuator solenoid stuck energized, Wastegate valve carbon welded shut, Control rod bent or binding, PCM commanding max boost erroneously.