water pump AUDI TT 1998 8N / 1.G AEB ATW Engines Cooling System Components Workshop Manual

19-6


Filling
Note:
CAUTION! - Remove drain plug from coolant pump (arrow).
The cooling system is filled year-round with frost and corrosion
protection additives. Until 6/96, G 011 A8 C coolant (green color) was used.From 7/96 on, only G 012 A8 D coolant (red color) is used.Coolants G 011 A8 C and G 012 A8 D CANNOT be mixed. Mixing
them will cause severe engine damage. Part numbers are for reference only. Always check with your Parts
department for the latest information. If the fluid in the expansion tank is brown, G012 A8 D has been mixed
with other coolant. In this case, flush cooling system and change
coolant. To flush, fill cooling system with clear water and run engine
for approx. 2 minutes. Flushing the system should remove most of the
coolant residue.
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19-8


For coolant G 012 A8 D, use T40007 refractometer to test frost protection
in cooling system.
Recommended mixture ratios:
Vehicles with small cap Frost protection to
Anti-freeze amount
G 012 A8
D
1) Water
1)
-25 C
(-13 F)
-35 C
(-13 F)
40 %

50 % 3.0 ltr.
(3.2 qts.)
3.5 ltr.
(3.7 qts.) 4.0 ltr.
(4.2 qts.)
3.5 ltr.
(3.7 qts.)
1) The quantity of coolant: 7.0 liters (7.4 qts.) can vary depending upon
vehicle options.
- Install lower radiator hose and secure.
- Replace O-ring and install coolant pump drain plug.
Tightening torque: 30 Nm (22 ft lb)

- Screw VAG1274/1 adapter onto coolant expansion tank.
- Attach VAG1274/10 special tool to VAG1274/1 adapter.
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