Audi A8 2003 Workshop Manual page 5

8-cylinder TDI engine (4.2 ltr. 4-valve common rail), mechanics - Edition 12.2013
1.12 Removing and installing mounting plate for oil cooler, pressure control valve and oil filter
housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
1.13 Removing and installing oil pressure switch F1
1.14 Removing and installing oil temperature sender G8
1.15 Checking oil pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
1.16 Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
1.17 Checking engine oil level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
19 - Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
1 Removing and installing parts of cooling system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
1.1 Connection diagram - coolant hoses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
1.2 Draining and filling cooling system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
1.3 Coolant pump and thermostat - exploded view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
1.4 Removing and installing coolant pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
1.5 Removing and installing thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
1.6 Checking thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
1.7 Removing and installing coolant pipes (front) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
1.8 Removing and installing coolant pipe (left-side) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
1.9 Removing and installing coolant pipe (right-side) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
1.10 Removing and installing coolant pipe (rear) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
1.11 Removing and installing coolant temperature sender G62
1.12 Radiator and radiator fans - exploded view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
1.13 Removing and installing radiator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242
1.14 Removing and installing radiator cowl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
1.15 Removing and installing radiator fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247
1.16 Checking cooling system for leaks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
21 - Turbocharging/supercharging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250
1 Servicing charge air system with turbocharger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250
1.1 Turbocharger - exploded view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250
1.2 Removing and installing turbocharger (left-side) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252
1.3 Removing and installing turbocharger (right-side) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
1.4 Charge air cooling - exploded view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
1.5 Removing and installing charge air cooler (left-side) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268
1.6 Removing and installing charge pressure sender G31
1.7 Removing and installing charge air cooler (right-side) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
26 - Exhaust system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
1 Removing and installing parts of exhaust system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
1.1 Exhaust system - exploded view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
1.2 Emission control - exploded view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277
1.3 Removing and installing exhaust gas temperature sender 1 G235
1.4 Removing and installing exhaust gas temperature sender 1 for bank 2 G236
1.5 Removing and installing exhaust gas temperature sender 2 G448
1.6 Removing and installing exhaust gas temperature sender 2 for bank 2 G449
1.7 Removing and installing temperature sender 2 before particulate filter G498
1.8 Removing and installing temperature sender before particulate filter G506
1.9 Separating Y-pipe and rear silencers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294
1.10 Removing and installing starter catalytic converter (left-side) . . . . . . . . . . . . . . . . . . . . . . 295
1.11 Removing and installing starter catalytic converter (right-side) . . . . . . . . . . . . . . . . . . . . . . 301
1.12 Removing and installing exhaust pipe (left-side) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306
1.13 Removing and installing exhaust pipe (right-side) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307
1.14 Removing and installing particulate filter/main catalytic converter (left-side) . . . . . . . . . . . . 309
1.15 Removing and installing particulate filter/main catalytic converter (right-side) . . . . . . . . . . 310
1.16 Exhaust manifold - exploded view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310
1.17 Removing and installing exhaust manifold (left-side) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312
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.
Audi A8 2003 ➤
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