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– Screw adapter for cooling system tester - V.A.G 1274/8- onto
coolant expansion tank.
– Attach cooling system charge unit - VAS 6096- to adapter -
V.A.G 1274/8- .
– Close valves -A- and -B- (turn lever transverse to direction of
flow to do this).
– Feed vent hose -1- into a small container -2-.
Note
Exhaust air takes a slight quantity of coolant along with it; this
should be collected.
– Connect hose -3- to compressed air.
• Pressure: 6 to 10 bar.
– Open valve -B-; turn lever in direction of flow to do this.
• A vacuum of at least 0.7 bar must be generated.
– Also briefly open valve -A- (turn lever in direction of flow to do
this) so that hose on -VAS 6096- coolant reservoir fills with
coolant.
– Close valve -A- again.
– Leave valve -B- open for a further 2 minutes.
• The suction-jet pump still generates a vacuum in the cooling
system.
– Close valve -B-.
– Pull off compressed air hose.
– Observe pressure gauge. Vacuum must drop to min. 0.4 bar.
If vacuum drops further, cooling system must be checked for
leaks.
Note
♦
If vacuum drops, but stabilises at about 0.4 bar, the cooling
system is leak tight.
♦
The subsequent filling must be performed »slowly«.
– Open valve -A- slowly.
• Vacuum in cooling system causes coolant to be extracted from
-VAS 6096- coolant reservoir and coolant system to be filled.
– Remove cooling system charge unit - VAS 6096- from adapter
-V.A.G 1274/8- on coolant expansion tank.
Touareg 2010 ➤ , Touareg 2015 ➤
6-cylinder direct-injection engine (3.6 l engine, 4V) - Edition 12.2019
160 Rep. gr.19 - Cooling
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