2CB3 — Wastegate Valve Activation, Suspicion Of Fault

The DME commanded wastegate operation but did not see the expected boost-control result. The code identifies the wastegate control path for testing; vacuum supply, actuator movement, linkage and actual valve seating still have to be checked.

Common causes on MINI

• Wastegate valve or linkage binding and not reaching its seat
• Vacuum actuator diaphragm leaking or not completing its stroke
• Vacuum hose, solenoid or supply fault
• Turbocharger mechanical wear at the wastegate mechanism

Documented repairs

2013 MINI Cooper S Limp Mode: Wastegate Would Not Close

2013 MINI Cooper S Convertible (R57)

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A 2013 MINI Cooper S Convertible had low-boost and wastegate faults. Vacuum and camera testing showed the gate would not close, leading to turbo replacement.

Read the diagnosis →

Components

• Engine Oil Filter
• Engine Coolant
• Engine Oil
• Engine Oil Drain Plug
• Oil Filter Housing Gasket
• Exhaust Manifold Gasket

Models

• R57 MINI Cooper S Convertible

Repairs by System

• Diagnosis
• Engine
• Cooling
• Turbocharger

Symptoms

• Check Engine Light
• Reduced Power Warning

Procedures

• Fault Code Scan
• Coolant Service
• Oil and Filter Change
• Camera Inspection
• Intake Pressure Data Logging
• Turbo Oil Line Replacement