Audi TT Coupe 2009 Owner's Manual page 45

Master key battery replacement
Each master key contains a battery housed under the
cover.
Fig. 28 Master key:
openi ng th e cover
We recommend having the battery cha nged by an autho-
rized dealership. However, if y o u wish to replace the dead
battery y ourself, proceed as follows :
- Pry apart the base => fig. 28
@
and the cove r @ carefully
with a coin.
- Remove the cove r (arrow).
- Remove the dead battery from the cover.
- Insta ll the new battery . Please mak e ce rtain t hat t he" +"
sign on t he batte ry faces down . Correct po larity is shown
on t he cover .
- Place the cover w ith th e new bat t ery on t he key base and
press both parts together .
<i>
For the sake of the environment
Dispose of dead batteries proper ly so as not to pol l ute the environ -
ment.
Cont rols and equip-
ment
Op e ning and c lo sing
[ i ]
Tips
The replacement battery must be the same specification as the
origina l. •
Electronic immobilizer
The immobilizer helps to prevent unauthorized use of
your vehicle.
A computer chip inside your key automatically deactivates the elec-
tronic immobilizer when you insert the key in the ignition lock.
When you remove the key from the ignition lock, the electronic
immobil izer is automatically activated once again.
If an unauthorized key was used, SAFE is displayed continuously in
the odometer display field .
&
WARNING
Alway s t ake the key with you when you leave the vehi cle. The key
can disarm the electroni c engine immob ilizer and permit an unau-
thori zed person to start the engine and enabl e ope ration of the
vehicle systems such as pow er wi ndow lead ing to serious
personal injury.
[ i ]
Tips
• Your engine can only be started using the fac t ory -equipped key.
• You may not be ab le to start your vehicle if an ignition key of a
different vehicle make is also loca t ed on your set of keys .
• For Declaration of Compliance to United States FCC and Industry
Canada regulations ~ page 301. •
Vehicle care
I
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irechnical data