Volkswagen Amarok 2011 Workshop Manual page 143

4-cylinder injection engine (2.0 l direct injection engine, turbocharger) - Edition 02.2011
♦ Adapter for cooling system tester -V.A.G 1274/9-
Test prerequisite
• Engine at normal operating temperature
Test sequence:
WARNING
Hot steam may escape when expansion tank is opened. Place
cloth over cap and open with caution.
– Open filler cap on coolant expansion tank.
– Screw adapter for cooling system tester -V.A.G 1274/8- into
coolant expansion tank.
– Clamp connector -V.A.G 1274 B/1- into adapter for cooling
system tester -V.A.G 1274/8- .
– Join connection piece -V.A.G 1274 B/1- to cooling system
tester -V.A.G 1274 B- using connecting hose supplied.
– Using hand pump on tester, build up a pressure of approx. 1.0
bar.
DANGER!
Risk of scalding! Before the cooling system tester -V.A.G 1274
B- is disconnected from the connecting hose or the connector
-V.A.G 1274 B/1- it is essential that the pressure is first re‐
lieved. To do this, press pressure relief valve on cooling system
tester -V.A.G 1274 B- until pressure gauge displays value of
»0«.
If pressure drops:
– Find leaks and rectify.
Checking pressure relief valve in filler cap:
– Screw cap into adapter for cooling system tester -V.A.G
1274/9- .
– Clamp connector -V.A.G 1274 B/1- into adapter for cooling
system tester -V.A.G 1274/9- .
Amarok 2011 ➤
137
1. Cooling system