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Starting engine with "Advanced Key" > < Conditions for starting the engine

A4 Mk3

Starting with vehicle key
Starting with vehicle key
The immobilizer V uses an entirely new type of operating logic for terminal control and for starting the engine. When the key is inserted (S-contact), the electronic ignition lock only differentiates between two different key positions:
t  Key at home position, corresponding to S-contact on
t  Key pressed
This results in the following operating concept:
   
Status before actionActionStatus after action
S-contact off
(ignition off
engine off)
–  Insert key
S-contact on
(ignition off
engine off)
S-contact on
(ignition off
engine off)
–  Remove key (vehicles with automatic gearbox: selector lever in P)
S-contact off
(ignition off
engine off)
S-contact on
(ignition off
engine off)
–  Press key (vehicles with manual gearbox: clutch not pressed; vehicles with automatic gearbox: brake not pressed)
Ignition on
(engine off)
S-contact on
(ignition off
engine off)
–  Press key (vehicles with manual gearbox: clutch pressed; vehicles with automatic gearbox: brake pressed and selector lever in N or P)
Engine on
Ignition on
(engine off)
–  Press key (vehicles with manual gearbox: clutch not pressed; vehicles with automatic gearbox: brake not pressed)
S-contact on
(ignition off
engine off)
Ignition on
(engine off)
–  Press key (vehicles with manual gearbox: clutch pressed; vehicles with automatic gearbox: brake pressed and selector lever in N or P)
Engine on
Engine on
–  Press key (vehicles with manual gearbox: vehicle stationary; vehicles with automatic gearbox: selector lever in N or P)
S-contact on
(ignition off
engine off)

An emergency engine shut-off is also implemented which is the same for manual and automatic gearboxes. The following actions result in an emergency engine shut-off:
–  Pressing and holding key
–  Pressing key twice in one second
   

Starting engine with "Advanced Key" > < Conditions for starting the engine