Audi 2003 A8, Workshop Manual, Page: 192 / 252

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1.4 Connection diagram for coolant hoses - vehicles for hot countries with aux‐
iliary heater
1 - Radiator
❑ Removing and installing
⇒ page 214
❑ If renewed, refill system
with fresh coolant
2 - Auxiliary radiator (right-
side)
❑ Removing and installing
⇒ page 218
❑ If renewed, refill system
with fresh coolant
3 - Thermostat for auxiliary ra‐
diator
4 - Alternator
5 - Engine oil cooler
❑ Removing and installing
⇒ page 177
❑ If renewed, refill system
with fresh coolant
6 - Heater coolant shut-off
valve - N279-
7 - Circulation pump - V55-
8 - Auxiliary heater
9 - Bleeder screw
10 - Heat exchanger for heater
❑ If renewed, refill system
with fresh coolant
11 - Bleeder screw
12 - Thermostat
❑ For gear oil cooler and
ATF cooler
13 - Gear oil cooler
14 - ATF cooler
15 - Coolant temperature sender - G62-
16 - Coolant expansion tank
❑ Checking pressure relief valve in filler cap ⇒ page 223
17 - Cylinder head/cylinder block
❑ If renewed, refill system with fresh coolant
18 - Coolant pump
❑ Removing and installing ⇒ page 196
19 - Continued coolant circulation pump - V51-
❑ Removing and installing ⇒ page 200
20 - Thermostat
❑ Removing and installing ⇒ page 197
Audi A8 2003 ➤
10-cylinder direct petrol injection engine (5.2 ltr. 4-valve), mechanics - Edition 10.2013
186
Rep. gr.19 - Cooling