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Safety precautions > < Vacuum system layout

A3 Mk1

Checking ignition system
Checking ignition system
A voltage of at least 12.5 V is required for proper operation of electrical components.
  Note
t  If the engine starts, runs for a short period and then cuts out after completing fault finding, repairs or component tests, this may be due to the immobiliser disabling the engine control unit. The fault memory must then be interrogated and, if necessary, the control unit must be adapted.
t  Certain tests may lead to a fault being detected by the control unit and stored. The fault memory is therefore to be interrogated and if necessary erased on completion of all tests and repair work. The readiness code must be generated after erasing the fault memory → Chapter.
   

Safety precautions > < Vacuum system layout