diagram AUDI A6 2000 C5 / 2.G AHA ATQ Engines Cooling System Components Workshop Manual

19-2


Cooling system components (on body)

1 -
Radiator
Removing and installing page 19
-17
After replacing, completely replace coolantWith ATF cooler on vehicles with automatic
transmission
2 -
Securing clip
3 -
Securing rubber
4 -
O-ring Replace if damaged
5 -
Lower coolant hose Secured to radiator with retaining clipMake sure hose is securely seatedCoolant hose connection diagram page 19
-9
6 -
Securing clip
To secure temperature switch in coolant
hose
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19-4


16 -
Upper coolant hose
Secured to radiator with retaining clipMake sure hose is securely seatedCoolant hose connection diagram page 19
-9
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19-6


7 -
Engine Coolant Temperature (ECT) sensor
-G62-
For Engine Control Module (ECM)If necessary, release pressure in cooling
system before removing Checking Repair Manual, 2.8 Liter V6
5V Fuel Injection & Ignition, Repair Group
01
8 -
Rear coolant line
Coolant hose connection diagram page 19
-9
9 -
Lifting eye
10 -
10 Nm (7 ft lb)
11 -
Coolant line
Coolant hose connection diagram page 19
-9
12 -
Front coolant hose
Coolant hose connection diagram page 19
-9
13 -
Sealing cap
Check using VAG1274 cooling system
tester with VAG1274/8 adapter Test pressure: 1.4-1.6 bar (20-23 psi)
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19-7


14 -
O-ring
Replace if damaged
15 -
Expansion tank Check using VAG1274 cooling system
tester with VAG1274/9 adapter
16 -
Upper coolant hose Secured to radiator with retaining clipMake sure hose is securely seatedCoolant hose connection diagram page 19
-9
17 -
Coolant line
Coolant hose connection diagram page 19
-9
18 -
Rear toothed belt guard
19 -
Gasket
Always replace
20 -
Coolant pump Check for ease of movementCompletely replace if damaged or leakingRemoving and installing page 19
-20
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19-8


21 -
Lower coolant line
Coolant hose connection diagram page 19
-9
22 -
Oil cooler
23 -
Belt pulley
For viscous fan
24 -
Fan wheel for viscous fan
25 -
Viscous fan coupling Note left-hand threadTightening torque only valid when using
3312 open end spanner. Tighten to 40 Nm (30 ft lb)Removing and installing page 19
-25
26 -
Bracket
For viscous fan
27 -
From bottom of radiator Coolant hose connection diagram page 19
-9
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19-9


Coolant hose connection diagram

1 -
Lower coolant hose
From radiator to engine
2 -
Cylinder head/cylinder block
3 -
Intake manifold
4 -
Coolant line From heat exchanger to engine block
5 -
Heater core
6 -
Coolant hose To heat exchanger
7 -
Rear coolant line
8 -
Expansion tank
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19-27


If 1st or 2nd fan speed does not run:
Electrical Wiring Diagrams, Troubleshooting & Component Locations
If no open circuit can be found: - Bridge terminal -1- and terminal -3- of harness connector using
auxiliary cables from VW1594 connector test kit.
Coolant fan -V7- must run on 2nd speed.
- Locate and repair open circuit using wiring diagram:- Replace coolant fan -V7-.
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