2002-2008 Audi A4 Service & Repair Manual
What's Included?
Lifetime Access
Fast Download Speeds
Offline Viewing
Access Contents & Bookmarks
Full Search Facility
Print one or all pages of your manual
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.
Basic Equipment Lowline
From 2003 m. y.
Main fuse
A97--0220
♦ on the Battery
Fuse holder
A97--0242
23 22 21 20
19 18 17 16
15 14 13 12
11 10 9 8
7 6 5
3 4
1 2
44 43 42 41 40
37
39 38
36 35 34 33 32 31
30 29 28 27 26 25 24
Res
Res
Res
Res
Res
Audi A4
Wiring Diagram
No. 3 / 1
12.2005
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.
♦ Instrument panel driver side
Fuse Colors
30 A - Green
25 A - Withe
20 A - Yellow
15 A - Blue
10 A - Red
7,5 A - Brown
5 A - Beige
Note:
♦ Fuse in fusebox from 23 onwards are numbered 223 onwards in Current Flow Diagram.
Coupling station with threaded connection
A97--0248
5 6 7
1 2 3 4
♦ in the electronics box, plenum chamber
1 - 10-Pin Connector, black (T10)
2 - 10-Pin Connector, brown (T10a)
3 - 17-Pin Connector, red (T17d)
6 - 17-Pin Connector, white (T17e)
Audi A4
Wiring Diagram
No. 3 / 1
12.2005
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.
Connector station A-pillar
A97--0247
8
11 12 13 14
2 3
4 5 6 7
10 9
16 15 17
A B
1
♦ behind side trim, left
13 - 10-Pin Connector, violet (T10c)
14 - 10-Pin Connector, grey (T10d)
15 - 17-Pin Connector, green (T17b)
16 - 17-Pin Connector, red (T17a)
17 - 17-Pin Connector, black (T17)
Audi A4
Wiring Diagram
No. 3 / 1
12.2005
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.
Connector station A-pillar
A97--0400
8
11 12 13 14
2 3
4 5 6 7
10 9
16 15 17
A B
1
C E
D F
♦ behind side trim, right
15 - 17-Pin Connector, red (T17c)
4-Pin Relay Carrier with threaded connection
A97--0245
1 2
3
4
C
B
G
E
F
A
D
H
♦ Instrument panel driver side
Audi A4
Wiring Diagram
No. 3 / 1
12.2005
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.
9-Pin Relay Carrier with Vehicle Electrical System Control Module
A97--0399
8 9 7
A
1
B
2 3 4 5 6
C D E F G
♦ Instrument panel driver side, behind 3-Pin Relay Carrier
3 - Horn Relay (J4)
6 - Load Reduction Relay (J59)
Audi A4
Wiring Diagram
No. 3 / 1
12.2005
You're Reading a Preview
What's Included?
Lifetime Access
Fast Download Speeds
Offline Viewing
Access Contents & Bookmarks
Full Search Facility
Print one or all pages of your manual
$41.99
Viewed 14 Times Today
Secure transaction
What's Included?
Lifetime Access
Fast Download Speeds
Offline Viewing
Access Contents & Bookmarks
Full Search Facility
Print one or all pages of your manual
$41.99
The 2002-2008 Audi A4 Service & Repair Manual is your comprehensive guide to maintaining, repairing, and servicing Audi A4 models from 2002 through 2008. This manual provides detailed step-by-step procedures, clear illustrations, diagrams, and precise specifications designed to simplify even the most complex repair and service tasks.
Perfect for both professional mechanics and dedicated DIY enthusiasts, this manual covers everything from routine maintenance tasks—including oil changes and brake pad replacements—to major repairs such as engine overhauls and transmission rebuilds.
Models Covered:
- 2002 Audi A4
- 2003 Audi A4
- 2004 Audi A4
- 2005 Audi A4
- 2006 Audi A4
- 2007 Audi A4
- 2008 Audi A4
Whether you are troubleshooting electrical issues, diagnosing engine problems, or replacing worn-out components, this manual provides the expert information and guidance you need to get the job done right. Invest in this all-inclusive Audi A4 Service & Repair Manual to keep your vehicle in peak condition.
