1.2 TDI CR engine (EA189) · Mixture preparation – injection · Injection system

Checking for leaks in the fuel system

Procedure

  • Allow engine to run at average revs for a few minutes.
  • Switch off ignition.
  • Check the entire fuel system for leaks.
  • If leaks are found although the connections have been tightened to the correct torque, the relevant component must be renewed.
  • Then road test the vehicle, accelerating to full throttle at least once.
  • Finally, check the high-pressure area for leaks again.