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Diagram of connections for charge pressure control system and vacuum system > < Safety precautions

A3 Mk1

Test requirements for checking turbocharging system
Test requirements for checking turbocharging system
l  Coolant temperature at least 80 °C.
l  Fault memory of engine control unit interrogated.
l  No leaks in the intake and exhaust systems. Effects of leaks → Chapter.
l  No leaks in vacuum hoses.
l  Vacuum pipe to charge pressure regulating valve not obstructed, loose or leaking.
l  No faults on engine or injection system (e.g. compression pressure or injectors).
   

Diagram of connections for charge pressure control system and vacuum system > < Safety precautions