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Cooling -> 1.12 Checking cooling system for leaks for Your Volkswagen Touareg SUV First Generation (2002-2010)

Touareg 2003 ➤  
8-cylinder injection engine - Edition 11.2011  
– Remove toothed belt guard securing nuts -1-.  
– Then unscrew all coolant pump securing bolts -arrows-.  
Installation is carried out in the reverse order. When installing,  
note the following:  
– Insert coolant pump with gasket.  
– Screw in all securing bolts by hand and tighten to specified  
torque. Specified torque: 15 Nm  
– Reinstall toothed belt ⇒ page 34 .  
– Install poly V-belt ⇒ page 18 .  
– Replenish coolant ⇒ page 86 .  
1.12  
Checking cooling system for leaks  
Special tools and workshop equipment required  
♦ Cooling system tester -V.A.G 1274-  
lk  
♦ Adapter for cooling system tester -V.A.G 1274/8-  
♦ Adapter for cooling system tester -V.A.G 1274/9-  
– Screw cooling system tester -V.A.G 1274- with adapter -V.A.G  
1274/8- onto expansion tank.  
– Operate pump on tester and build-up pressure of between 1.4  
and 1.6 bar.  
– Check cooling system tester for leaks.  
– In addition, check sealing cap.  
1. Removing and installing parts of cooling system  
91  
Touareg 2003 ➤  
8-cylinder injection engine - Edition 11.2011  
– To do this screw the cooling system tester -V.A.G 1274- and  
the adapter for cooling system tester -V.A.G 1274/9- on seal‐  
ing cap as shown.  
– Operate pump on tester and create a pressure of between 1.6  
bar.  
– The pressure relief valve in the sealing cap must remain  
closed for the time being.  
– If valve opens before test is complete, renew sealing cap.  
lk  
92  
Rep. gr.19 - Cooling