11 74 509 Replacing both pressure converters for turbocharger (N63)
Necessary preliminary work:
- Partially release charge air cooler EXPANSION TANK .
- Partially release AUXILIARY WATER PUMP for exhaust turbocharger.
- Disconnect plug connection at COOLANT THERMOSTAT .
Pressure converter, cylinders 1-4:
Disconnect plug connection (1) on pressure converter.
Installation note:
Plug connection (1) must snap audibly into place!
Disconnect black vacuum hose at connection (VAC = vacuum reservoir).
Disconnect black/red vacuum hose at connection (OUT= turbocharger vacuum unit).
Unscrew nuts (2).
Tightening torque 11 65 8AZ .
Remove pressure converter.
Pressure converter, cylinders 5-8:
Disconnect plug connection (1) on pressure converter.
Installation note:
Plug connection (1) must snap audibly into place!
Disconnect black vacuum hose at connection (VAC = vacuum reservoir).
Disconnect black/blue vacuum hose at connection (OUT= turbocharger vacuum unit).
Unscrew nuts (2).
Tightening torque 11 65 8AZ .
Remove pressure converter.
Check activation via BMW diagnosis system.