air condition AUDI A3 1999 8L / 1.G AEB ATW Engines Cooling System Components Workshop Manual

19-28

Cooling system, pressure test


Special tools and equipment

VAG1274 cooling system tester
VAG1274/1 adapter or VAG1274/8 with
VAG1274/9

Test condition:
Engine at operating temperature

WARNING!

The cooling system is pressurized when the
engine is warm. When opening the expansion
tank, wear gloves and other appropriate
protection, cover the cap using a cloth, and
open carefully to relieve system pressure
slowly.

- Open coolant expansion tank cap.

Vehicles with small cap

- Using VAG1274/1 adapter, attach VAG1274 cooling system tester to
coolant expansion tank.
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