Audi TT (2007 year). Manual - part 246

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.

17

All querying options are shown below in the 
associated menu structure:

QUERY

Service

Service in:

x kilometres
y days

Vehicle ID

VIN

Engine oil temperature

Engine oil temperature: x degrees

The extended convenience menu - menu option "QUERY"

The extended convenience menu - menu option "MENU OFF"

To return to the display of onboard computer 
variables, select the menu option "MENU OFF", 
press the Reset key on the onboard computer and 
return to onboard computer level 1. 

382_009

DISPLAY TYPE

SET

>QUERY

MENU OFF

HELP

382_009

DISPLAY TYPE

SET
QUERY

>MENU OFF

HELP

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.

18

Function

The onboard power supply control unit in the Audi 
TT Coupé ´07 basically has the same main functions 
as the control unit in the Audi A3 ´04. 

The onboard power supply control unit controls:

–

the  outside  light

–

the  charge  indicator  lamp

–

terminal 58s

–

the load management system

–

terminals 15, 50 and 30G

–

the electric fuel pump II relay

–

the windscreen wiper

–

the heated rear window

–

the signal horn

–

the  interior  light

Installation location

The onboard power supply control unit is housed 
under the dash panel on the left, and can be 
accessed by removing the dash panel trim in the 
driver footwell.

System overview

The onboard power supply control unit is integrated 
in the convenience CAN bus within the vehicle 
networking system.
It also performs the function of the LIN master for 
the wiper motor control unit and the rain and light 
detector sensor.

Electrical system and convenience electronics

Onboard power supply control unit J519

Reference

For further information on the 
outside light control, activation of the 
charge indicator lamp, the dimming 
function (terminals 58s and 58d), 
the load management system, the 
terminal management system as well 
as the fuel pump relay control, refer 
to Self-Study Programme 312. 

382_059

382_046

Onboard power supply 

control unit

J519

Wiper motor 

control unit

J400

Rain and light 

detector sensor

G397

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.

19

Battery

The battery is installed in the boot on the right and 
can be accessed by removing the cargo-area floor. 
The Audi TT Coupé ´07 does not have a slave start 
connector because the battery is directly accessible. 
Therefore, battery charging and auxiliary power 
supply are via the battery terminals. 
For trickle charging of showroom vehicles, 
a suitable charger, e.g. VAS 5059A, VAS 5900 or 
VAS 5903 must be connected in order to conserve 
battery power.

If the battery is discharged or faulty, the boot lid can 
be released using an emergency release device. For 
information on the emergency release device, refer 
to the Audi TT Coupé ´07 Owner's Manual.

The following batteries are used

●

61Ah / 330A

●

72Ah / 380A

●

75Ah / 420A (dry-cell battery for the North 
American market)

●

80Ah / 380A

The choice of battery is dependent on

–

engine  variant

–

trim  package

–

country  spec  package

Battery test

The battery acid level is tested in the conventional 
manner by visual inspection.
If the acid level in the battery cells is too low, then 
the battery must be replaced.

As in the predecessor model, battery voltage is 
measured under load using battery tester 
VAS 5097A.

382_066

Reference

For further information as well as 
safety instructions, please refer to the 
current service literature.

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.

20

Electrical system and convenience electronics

Front outside light

Headlight

Generally, in the case of the Audi TT Coupé ´07, a distinction is made between three variants:

●

Halogen headlight

●

Bi-xenon headlight

●

Bi-xenon headlight with AFS

Configuration of the front lamps in the halogen headlight variant

382_022

Main-beam headlight

Low beam headlight

Indicator

Side light / sidemarking light (SAE*)

* country-specific variant for the North American market

12 V bulb

Type

Rated power

Side light

W5W

5 watts

Low-beam headlight

H7

55 watts

Main-beam headlight

H7

55 watts

Indicator

H21W

21 watts

Sidemarking lights (SAE*)

WY5W

5 watts

The following bulbs are used in the halogen headlight variant:

Side reflector