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2003 A8
Audi 2003 A8 User Manual
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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.
7
Repairing connector housings and
electrical connectors
⇒
Electrical
system;
General
information;
Rep.
gr.
97
;
Repairing
wiring harnesses and
connectors; Repairing connector
housings
and electrical connectors
Audi A8 2003 ➤
Electrical system - Edition 08.2014
354
Rep. gr.97 - Wiring
363
365
Table of Contents
Electrical System
1
Table of Contents
3
Starter, Current Supply, CCS
11
Contact Corrosion
11
Battery
12
Battery - General Notes
12
Maintenance-Free Batteries
12
Disconnecting and Connecting Battery
12
Removing and Installing Battery
13
Checking Battery
16
Preparations before Measuring No-Load Voltage
16
Charging Battery
16
Preparations before Charging Battery
16
Preparations for Back-Up Power Supply of Battery
17
Removing and Installing Battery Cut-Off Relay J655
18
Removing and Installing Battery Isolation Igniter N253
18
Removing and Installing Energy Management Control Unit J644
18
Removing and Installing Alternator
20
Vehicles with 3.0 Ltr. MPI Engine
20
Vehicles with 2.8 Ltr. and 3.2 Ltr. FSI Engine
24
Vehicles with 3.7 Ltr. and 4.2 Ltr. MPI Engine
27
Vehicles with 4.2 Ltr. FSI Engine
30
Vehicles with 5.2 Ltr. FSI Engine
34
Vehicles with 6.0 Ltr. MPI Engine
36
Vehicles with 3.0 Ltr. TDI Engine
40
Vehicles with 4.0 Ltr. TDI Engine
44
Vehicles with 4.2 Ltr. TDI Engine
57
Checking and Servicing Alternator
71
Checking Alternator
71
Servicing Alternator
71
Removing and Installing Starter
72
Vehicles with 2.8 Ltr. FSI, 3.0 Ltr. MPI and 3.2 Ltr. FSI Engine
72
Vehicles with 3.7 Ltr. and 4.2 Ltr. MPI Engine
73
Vehicles with 4.2 Ltr. FSI Engine
77
Vehicles with 5.2 Ltr. FSI Engine
82
Vehicles with 6.0 Ltr. MPI Engine
84
Vehicles with 3.0 Ltr. TDI Engine
87
Vehicles with 4.0 Ltr. TDI Engine
88
Vehicles with 4.2 Ltr. TDI Engine
90
Gauges, Instruments
93
Instrument Cluster
93
Removing and Installing Instrument Cluster
93
Pin Assignment at Multi-Pin Connectors on Instrument Cluster
95
Pin Assignment on Fuel Gauge Senders
96
Pin Assignment at Coolant Temperature Sender G62
97
Removing and Installing Radio-Controlled Clock Receiver J489
105
Removing and Installing Garage Door Operation Control Unit J530
105
Cigarette Lighter, Socket
106
Removing and Installing Cigarette Lighter U1 Permitted Unless Authorised by AUDI AG. AUDI AG Does Not Guarantee or Accept any Liability
106
Removing and Installing Rear Cigarette Lighter U9
106
With Respect to the Correctness of Information in this Document. Copyright by AUDI AG
108
Removing and Installing Rear Cigarette Lighter U9 - Vehicles with Rear Climatronic Operating and Display Unit E265
109
Removing and Installing Cigarette Lighter Illumination Bulb L28
110
Removing and Installing 12 V Socket U18 / U19 in Long Centre Console
110
Onwards
113
Renewing 12 V Socket U5 - Vehicles from 06.2004 Onwards
113
Horn
115
Removing and Installing Horn and Dual Tone Horn H1
115
Data Bus Diagnostic Interface
117
Data Bus Diagnostic Interface J533
117
Data Bus Diagnostic Interface J533 - Overview
117
Removing and Installing Data Bus Diagnostic Interface J533
118
Connector at Data Bus Diagnostic Interface J533
119
Windscreen Wash/Wipe System
121
Contact Corrosion
121
Windscreen Wiper System
122
Moving Windscreen Wipers to Service Position
122
Renewing Wiper Blade
122
Removing and Installing Wiper Arms
123
Adjusting Wiper Arms
124
Removing and Installing Wiper Motor with Wiper Motor Control Unit J400
125
Renewing Wiper Motor with Wiper Motor Control Unit J400
128
Windscreen Washer System
130
Removing and Installing Washer Fluid Reservoir
130
Removing and Installing Washer Jets - Vehicles up to 08.2007
131
Removing and Installing Washer Jets - Vehicles from 09.2007 Onwards
131
Adjusting Washer Jets
132
Protected by Copyright. Copying for Private or Commercial Purposes, in Part or in Whole, Is Not
132
Permitted Unless Authorised by AUDI AG. AUDI AG Does Not Guarantee or Accept any Liability Headlight Washer System
133
Removing and Installing Headlight Washer Jets
133
With Respect to the Correctness of Information in this Document. Copyright by AUDI AG
133
Adjusting Washer Jets
133
Removing and Installing Washer Fluid Reservoir
133
Washer Fluid Hoses
134
Lights, Bulbs, Switches - Exterior
135
Contact Corrosion
135
Halogen Headlights
136
Halogen Headlights - Exploded View
136
Removing and Installing Headlights
137
Adjusting Headlights
138
Preparations for Headlight Bulb Replacement
139
Renewing Bulb for Dipped Beam Headlights
142
Renewing Bulb for Main Beam Headlights
143
Renewing Bulb for Side Lights
144
Renewing Bulb for Turn Signal
145
Renewing Headlight Holders
146
Adapting Headlights for Driving on the Left or Right Side of the Road
146
Halogen Headlights (USA Vehicles)
148
Halogen Headlights - Exploded View
148
Removing and Installing Headlights
149
Adjusting Headlights
150
Preparations before Working on Headlights
151
Renewing Bulb for Dipped Beam Headlights
152
Renewing Bulb for Main Beam Headlights
153
Renewing Parking Light Bulb
154
Renewing Bulb for Turn Signal
155
Renewing Headlight Holders
156
Gas Discharge Headlights
157
Safety Precautions When Handling Gas Discharge Bulbs
157
Gas Discharge Headlight with Cornering Light/Static Cornering Light - Exploded View
157
Removing and Installing Headlights
159
Adjusting Headlights
160
Preparations for Headlight Bulb Replacement
162
Renewing Gas Discharge Bulb
168
Removing and Installing Starter Unit for Gas Discharge Bulb - Vehicles up to 08.2007
169
09.2007 Onwards
171
Renewing Bulb for Main Beam Headlights
172
Renewing Bulb for Daytime Running Light
174
Renewing LED Light
175
Renewing Bulb for Static Cornering Light
175
Renewing Bulb for Side Lights - Vehicles Without Static Cornering Light
176
Renewing Bulb for Side Lights - Vehicles with Static Cornering Light
177
Removing and Installing Main and Dip Beam Switch-Over Solenoid N347 / N348
179
Removing and Installing Swivel Module Position Sensor G474 / G475
179
Renewing Bulb for Turn Signal
179
Removing and Installing Dynamic Cornering Light Control Motor V318 / V319
180
Removing and Installing Headlight Range Control Motor V48 / V49
180
Removing and Installing Gas Discharge Bulb Control Unit J343 / J344
182
Removing and Installing Output Module for Headlight J667 / J668
182
Renewing Headlight Holders
184
Adapting Headlights for Driving on the Left or Right Side of the Road - Vehicles with Adjustment Lever
184
Adapting Headlights for Driving on the Left or Right Side of the Road - Vehicles Without Adjustment Lever
185
Gas Discharge Headlights - USA Vehicles
187
Safety Precautions When Handling Gas Discharge Bulbs
187
Gas Discharge Headlights - Exploded View
187
Removing and Installing Headlights
189
Adjusting Headlights
190
Preparations before Working on Headlights
192
Renewing Gas Discharge Bulb
195
Removing and Installing Starter Unit for Gas Discharge Bulb - Vehicles up to 08.2007
196
09.2007 Onwards
197
Renewing Bulb for Main Beam Headlights
198
Renewing Bulb for Daytime Running Light
200
Renewing LED Light
201
Renewing Parking Light Bulb
201
Removing and Installing Main and Dip Beam Switch-Over Solenoid N347 / N348
202
Removing and Installing Swivel Module Position Sensor G474 / G475
202
Renewing Bulb for Turn Signal
202
Removing and Installing Dynamic Cornering Light Control Motor V318 / V319
203
Removing and Installing Headlight Range Control Motor V48 / V49
203
Removing and Installing Gas Discharge Bulb Control Unit J343 / J344
205
Removing and Installing Output Module for Headlight J667 / J668
205
Renewing Headlight Holders
206
Side Marker Light (USA Vehicles)
208
Removing and Installing Side Marker Light
208
Renewing Side Marker Light Bulb
209
Fog Lights - Vehicles up to 08.2007
211
Removing and Installing Fog Lights - Audi A8
211
Renewing Fog Light Bulb - Audi A8 up to 09.2004
211
Renewing Fog Light Bulb - Audi A8 from 10.2004 Onwards
212
Removing and Installing Fog Lights - Audi S8
212
Renewing Fog Light Bulb - Audi S8
213
Adjusting Fog Lights
214
Fog Lights - Vehicles from 09.2007 Onwards
215
Removing and Installing Fog Lights
215
Renewing Fog Light Bulb
215
Adjusting Fog Lights
216
Turn Signal Repeaters - Vehicles up to 08.2007
217
Removing and Installing Turn Signal Repeater
217
Turn Signal Repeaters - Vehicles from 09.2007 Onwards
218
Turn Signal in Exterior Mirror - Exploded View
218
Removing and Installing Exterior Mirror Turn Signal Bulb L131 / L132
218
Entry Light in Exterior Mirror - Vehicles up to 08.2007
222
Removing and Installing Entry Light in Exterior Mirror W52 / W53
222
Entry Light in Exterior Mirror - Vehicles from 09.2007 Onwards
224
Entry Light in Exterior Mirror - Exploded View
224
Removing and Installing Entry Light in Exterior Mirror W52 / W53
224
Exterior Door Handle Lighting
228
Removing and Installing Exterior Door Handle Lighting
228
Outer Tail Light Cluster - Vehicles up to 08.2007
229
Outer Tail Light Cluster - Exploded View
229
Removing and Installing Outer Tail Light Cluster
230
Removing and Installing LED Printed Circuit Boards for Tail Light Cluster
230
Removing and Installing Tail Light Control Unit
231
Aligning Tail Light Cluster with Body Contour
231
Tightening Torque
232
Outer Tail Light Cluster - USA Vehicles up to 08.2007
233
Outer Tail Light Cluster - Exploded View
233
Removing and Installing Outer Tail Light Cluster
234
Removing and Installing LED Printed Circuit Boards for Tail Light Cluster
234
Removing and Installing Tail Light Control Unit
235
Aligning Tail Light Cluster with Body Contour
235
16. Outer Tail Light Cluster - Vehicles from 09.2007 Onwards
237
Outer Tail Light Cluster - Exploded View
237
Removing and Installing Outer Tail Light Cluster
238
Aligning Tail Light Cluster with Body Contour
238
Inner Tail Light Cluster - Vehicles up to 08.2007
240
Inner Tail Light Cluster - Exploded View
240
Removing and Installing Inner Tail Light Cluster
240
Removing and Installing Bulb for Reversing Light and Rear Fog Light
241
Removing and Installing LED Printed Circuit Boards and Tail Light Control Unit
242
Aligning Tail Light Cluster with Body Contour
242
Inner Tail Light Cluster - USA Vehicles up to 08.2007
243
Inner Tail Light Cluster - Exploded View
243
Removing and Installing Inner Tail Light Cluster
243
Removing and Installing Bulb for Reversing Light and Rear Fog Light
244
Removing and Installing LED Printed Circuit Boards and Tail Light Control Unit
245
Aligning Tail Light Cluster with Body Contour
245
Inner Tail Light Cluster - Vehicles from 09.2007 Onwards
246
Inner Tail Light Cluster - Exploded View
246
Removing and Installing Inner Tail Light Cluster
246
Removing and Installing Bulb for Reversing Light
247
Removing and Installing Bulb for Rear Fog Light
248
Aligning Tail Light Cluster with Body Contour
249
High-Level Brake Light
250
Removing and Installing High-Level Brake Light
250
Number Plate Light
251
Removing and Installing Number Plate Light - Vehicles up to 08.2007
251
Removing and Installing Number Plate Light - Vehicles from 09.2007 Onwards
251
Steering Column Switch Module
252
Steering Column Switch Module - Exploded View
252
Removing and Installing Steering Column Switch Module
253
Removing and Installing Return Ring with Slip Ring
254
Removing and Installing Steering Angle Sender G85
256
Removing and Installing Steering Column Electronics Control Unit J527
256
Pin Assignment at Steering Column Electronics Control Unit J527 (Front)
257
Pin Assignment at Steering Column Electronics Control Unit J527 (Reverse Side)
259
Removing and Installing Turn Signal Switch E2
260
Removing and Installing Cruise Control System Switch E45
261
Removing and Installing Intermittent Wiper Switch E22
261
Entry and Start Authorisation Switch E415
263
Removing and Installing Entry and Start Authorisation Switch E415
263
Pin Assignment at Entry and Start Authorisation Switch E415
264
Parking Aid
265
Parking Aid - Overview
265
Removing and Installing Parking Aid Control Unit J446 (Vehicles up to 11.2005)
266
Removing and Installing Parking Aid Control Unit J446 (Vehicles from 11.2005)
267
Removing and Installing Front Parking Aid Warning Buzzer H22 - 8-Channel Parking Aid
267
Removing and Installing Rear Parking Aid Warning Buzzer H15
267
Removing and Installing Front Parking Aid Senders - Vehicles with Twin Grille
268
Removing and Installing Front Parking Aid Senders - Vehicles with Single-Frame Radiator
270
Grille
270
Removing and Installing Rear Parking Aid Senders
270
Automatic Headlight Range Control
272
Automatic Headlight Range Control - Overview
272
Removing and Installing Control Unit for Headlight Range Control J431
272
Protected by Copyright. Copying for Private or Commercial Purposes, in Part or in Whole, Is Not
273
Lights, Bulbs, Switches - Interior
274
Contact Corrosion
274
Lights and Switches in Dash Panel
275
Removing and Installing Buttons in Instrument Cluster Trim
275
Removing and Installing Light Switch
276
Removing and Installing Steering Column Adjustment Switch E167
276
Removing and Installing Switches in Dash Panel
277
Removing and Installing Glove Compartment Light
278
Removing and Installing Glove Compartment Light Switch E26
278
Removing and Installing Footwell Light (Front)
278
Lights and Switches in Front Doors
280
Removing and Installing Bulb for Door Opener Light
280
Removing and Installing Mirror Adjustment Switch E43
280
Removing and Installing Operating Unit for Window Regulator in Driver Door E512
282
Removing and Installing Window Regulator Switch in Front Passenger Door E107
283
Removing and Installing Driver Side Interior Locking Switch E150 / Front Passenger Side Interior Locking Switch E198
283
Removing and Installing Interior Door Lighting Strip
284
Removing and Installing Driver Seat/Front Passenger Seat Memory Operating Unit
286
Removing and Installing Emergency-Off Button E190 / E466 for Driver Seat/Front Passenger Seat Memory Operating Unit
288
Removing and Installing Front Passenger Seat Adjustment Switch E157
289
Removing and Installing Door Contact Switch
290
Removing and Installing Door Warning Lamp and Entry Light
291
Lights and Switches in Rear Doors
292
Removing and Installing Bulb for Door Opener Light
292
Removing and Installing Rear Left/Rear Right Window Regulator Switch, in Door
292
Removing and Installing Interior Door Lighting Strip
293
Removing and Installing Background Light in Storage Compartment in Door
294
Removing and Installing Rear Left Interior Locking Switch E273 / Rear Right Interior Locking Switch E274
295
Removing and Installing Door Contact Switch
295
Removing and Installing Door Warning Lamp and Entry Light
295
Lights and Switches in Centre Console
297
Removing and Installing Light for Centre Console (Front)
297
Removing and Installing Front Seat Heating Switches
299
Removing and Installing Rear Seat Heating Switches
299
Lights and Switches in Seats and Luggage Compartment
300
Removing and Installing Footwell Light (Rear)
300
Removing and Installing Luggage Compartment Lights
300
Removing and Installing Button to Close Rear Lid in Luggage Compartment E406
301
Removing and Installing Contact Switch in Lock Cylinder for Rear Lid, Anti-Theft System and Central Locking System F124
301
Lights and Switches in Roof Trim
302
Removing and Installing Vanity Mirror Light
302
Up to 08.2007
302
Removing and Installing Front Interior Light with Roof Electronics Control Unit J528 - Vehicles from 09.2007 Onwards
303
Renewing Bulbs for Interior Light (Front)
305
Removing and Installing Garage Door Operating Unit E284
306
Renewing Bulbs for Reading Light (Front)
306
Removing and Installing LED for Background Light (Front)
306
Removing and Installing Rear Interior Light/Reading Light with Rear Operating Unit for Roof Module E467 - Vehicles up to 08.2007
306
Renewing Rear Interior Light Bulb - Vehicles up to 08.2007
307
Renewing Rear Reading Light Bulb - Vehicles up to 08.2007
308
Removing and Installing Rear Interior Light/Reading Light with Rear Operating Unit for Roof Module E467 - Vehicles from 09.2007 Onwards
308
Renewing Rear Interior Light Bulb - Vehicles from 09.2007 Onwards
309
Renewing Rear Reading Light Bulb - Vehicles from 09.2007 Onwards
310
Removing and Installing LED for Background Light (Rear)
310
Removing and Installing Illuminated Vanity Mirror (Rear)
310
Removing and Installing Vanity Mirror Light (Rear)
311
Components on Interior Mirror
312
Removing and Installing Light Sensor G399
312
With Respect to the Correctness of Information in this Document. Copyright by AUDI AG
312
Removing and Installing Humidity Sender G355 - Vehicles Without Lane Departure Warning
312
Removing and Installing Humidity Sender G355 - Vehicles with Lane Departure Warning
314
Immobiliser
317
Entry and Start Authorisation System
318
Entry and Start Authorisation System - Overview
318
Keyless Entry System - Overview
319
Exterior Door Handle for Keyless Entry System - Exploded View
320
Removing and Installing Front Exterior Door Handle Switches F272 / F273
321
Removing and Installing Rear Exterior Door Handle Switches F274 / F275
321
Removing and Installing Interior Aerial 1 for Entry and Start Authorisation R138
321
Removing and Installing Entry and Start Authorisation Control Unit J518
322
Removing and Installing Interior Aerial 2 for Entry and Start Authorisation R139
323
Removing and Installing Interior Aerial 3 for Entry and Start Authorisation R154
323
Removing and Installing Luggage Compartment Aerial for Entry and Start Authorisation R137
324
Removing and Installing Rear Bumper Aerial for Entry and Start Authorisation R136
324
Anti-Theft Alarm with Ultrasonic Interior Monitor
325
Removing and Installing Sender/Receiver Module for Interior Monitoring System G303 or G305
325
Removing and Installing Anti-Theft/Tilt System Control Unit J529
325
Removing and Installing Alarm Horn H12
325
Removing and Installing Interior Monitoring Deactivation Switch E183 and Alarm System off Switch E217
326
Lane Change Assist
328
Lane Change Assist - Overview
328
Removing and Installing Button for Lane Change Assist E530
328
Removing and Installing Lane Change Assist Warning Lamp in Exterior Mirror
329
Removing and Installing Lane Change Assist Control Unit J769 / J770
331
Calibrating Lane Change Assist - Test Equipment Layout
331
Calibrating Lane Change Assist Control Unit J769 / J770
332
Towing Bracket
339
Socket for Towing Bracket
339
Removing and Installing Trailer Detector Control Unit J345
339
Wiring
340
Contact Corrosion
340
Component Protection
341
Relay Carriers, Fuse Carriers (Engine Compartment)
342
Removing and Installing Electronics Box (Plenum Chamber)
342
Removing and Installing Relay and Fuse Holder in Electronics Box (Plenum Chamber)
345
Relay Carriers, Fuse Carriers (Vehicle Interior)
348
Removing and Installing Fuse Holder in Dash Panel (Left-Side)
348
Removing and Installing CAN Separating Connector (Left-Side) T46A
349
Unplugging Door Separating Connector (Left-Side)
350
Removing and Installing Onboard Supply Control Unit J519
350
Removing and Installing Relay and Fuse Carrier Behind Dash Panel (Left-Side)
351
Removing and Installing Electronics Box (Driver's Side)
351
Removing and Installing Fuse Holder at Dash Panel (Right-Side)
352
Removing and Installing CAN Separating Connector (Right-Side) T46B
353
Unplugging Door Separating Connector (Right-Side)
354
Removing and Installing Main Fuse Holder, A-Pillar (Right-Side)
355
Removing and Installing Relay Carrier in Front Footwell (Right-Side)
356
Removing and Installing Onboard Supply Control Unit 2 J520
356
Removing and Installing Voltage Converter for Background Lighting
357
Door)
357
Removing and Installing Voltage Converter for Rear Left/Right Door Background Lighting
358
Relay Carriers, Fuse Carriers (Luggage Compartment)
359
Removing and Installing Fuse Holder in Luggage Compartment (Left-Side)
359
Removing and Installing Relay and Fuse Holder in Luggage Compartment (Right-Side)
360
Removing and Installing Heated Windscreen Control Unit J505
361
Repairing Wiring Harnesses and Electrical Connectors
363
Repairing Connector Housings and Electrical Connectors
364
Releasing and Dismantling Connector Housings
365
Cleaning Contact Surfaces with Contact Surface Cleaning Set VAS 6410
366
Repairing Aerial Wires
367
Fibre Optic Cables
368
Vehicle Diagnostic, Testing and Information Systems
369
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Audi 2003 A8 Specifications
General
Brand
Audi
Model
2003 A8
Category
Automobile
Language
English
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