Audi TT (2007 year). Manual — part 241

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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.

45

The aerial receives the radio signals from tyre pres-
sure sensors G222-G226. The sensors operate at a
radio frequency of 315MHz. The sensors are identi-
cal in design and function to those on the Audi A6.
A new feature is the use of the valve body as a
transmitter antenna. The valve body and sensor can
no longer be separated. As with the current models
A4, A6 and Q7, the sensors do not start to transmit
until the wheels being to turn. To meet the country-
specific statutory requirements, the battery service
life is 10 years. The tyre pressure of the spare wheel
is not monitored. When the customer orders a full-
size spare wheel, the sensor is already installed in
the wheel if the vehicle is equipped with a tyre pres-
sure monitoring system.

The E492 button used in the tyre pressure monitor-
ing system is identical to the button used by the low
tyre pressure indicator. Pressing the button displays
the actual tyre pressures as new target pressures.
As with the low tyre pressure indicator, the button is
connected to the control unit by discrete lines.

381_051a

Trailer

Tyre pressure monitoring

system J502

381_060

381_061

Design and function

In the Audi TT the rear tyre pressure monitor aerial
R96 is integrated in the tyre pressure monitor con-
trol unit J502.The control unit is fitted in the low
tyre pressure indicator behind the dash panel
insert. In the case of the tyre pressure monitoring
system, communication with the vehicle periphery
via the convenience CAN bus.

Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.

46

Wheels and tyres

381_054

Design and function

Tyre pressure warnings are indicated by the yellow
warning lamp in the dash panel insert. No position-
related warning is given. Warnings are indicated in
accordance with country-specific statutory require-
ments at a residual tyre pressure of 75% or less.Tyre
pressures are determined taking into account the
tyre air temperature.

Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.

47

Target pressure ,Y bar

Target pressure X, bar

Tyre (standard, limp-home, extra load)

8 = PR No. 7K8 (= tyre pressure monitoring system)

Adaption

The control unit learns the new tyre pressure sen-
sors automatically when the ignition is turned on
after the vehicle has been shut off for at least 20
minutes. When new tyre pressure sensor identifica-
tion numbers are recognised, the fault indicator
lamp is activated. The driver enable monitoring of
the actual tyre pressures by pressing the SET key.
The system is now ready for operation again.

The tyre pressure sensor identification numbers
can be transmitted manually to the control unit
using the function "10 Adaption". This bypasses the
waiting period. Each identification number is indi-
cated on the tyre pressure sensor housing.

Service work

The main changes to the service work on the low
tyre pressure indicator are listed in the following.

Coding

The coding tells the control unit the system variant,
powertrain type, gearbox type, wheel size and type
of tyre used on the vehicle. The control unit accepts
the new coding after ignition on/off.

Note

The handheld transmitters for the tyre pressure
monitoring system VAS 6287 cannot be used on
the tyre pressure monitoring system of the
Audi TT.

Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.

381

All rights reserved.
Technical specifications
subject to change without
notice.

Copyright
AUDI AG
I/VK-35
Service.training@audi.de
Fax +49-841/89-36367

AUDI AG
D-85045 Ingolstadt
Technical status: 05/06

Printed in Germany
A06.5S00.26.20

Audi TT Coupé ´07 - Suspension System

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