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Additional instructions when undertaking assembly work on the air-conditioning system > < General notes on the injection system

Octavia Mk2

General notes on the ignition system
General notes on the ignition system
t  Switch off the ignition before disconnecting and connecting the battery, as this may damage the 4AV control unit.
t  The engine control unit and other components are fitted with the self diagnosis function; check it → Vehicle diagnosis, testing and information system VAS 5051.
t  A minimum voltage of 11.5 V is required for perfect functioning of the electrical components.
t  Certain inspections may cause the engine control unit to detect and store a fault. It is therefore necessary to interrogate the fault memory after having completed all inspections and repairs, and if necessary delete → Vehicle diagnosis, testing and information system VAS 5051.
t  If after fault finding, repair or inspection of components the engine starts briefly and then stops, it is possible that the immobiliser blocks the engine control unit. Then if necessary the engine control unit must be adapted → Vehicle diagnosis, testing and information system VAS 5051.
Safety measures → Chapter
Setting data, spark plugs → Octavia II
   

Additional instructions when undertaking assembly work on the air-conditioning system > < General notes on the injection system