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2 Component protection
Most of the control units in the Audi A8 are equipped with com‐
ponent protection.
In the event of replacement, the new control unit must be adapted
to the vehicle via an on-line link. Failure to do so will result in
activation of the component protection for the newly installed con‐
trol unit.
If component protection is active, the new control unit in the ve‐
hicle will only operate to a limited extent (e.g. no rev. counter
function). Component protection is activated:
♦ When a new control unit is installed or
♦ When a control unit from a different vehicle is installed.
If the component protection function in the drive authorisation
system is activated, it will be active for all other control units with
component protection as well.
The immobiliser function is not a component protection function.
To deactivate component protection, use ⇒ Vehicle diagnostic
tester.
Audi A8 2003 ➤
Electrical system - Edition 08.2014
2. Component protection 331