Checking Cooling System for Leaks

17 00 009 - Checking cooling system for leaks (W11)





Special tools required:
- 17 0 002 17 0 000 Tester
- 17 0 008 17 0 000 Tester
- 17 0 051 17 0 050 Set of Adapters
- 17 0 052 17 0 050 Set of Adapters





Warning!
Risk of burning and scalding!

Only perform this work after engine has cooled down.





Checking pressure drop in cooling system:

Remove cap from expansion tank.

Connect special tool 17 0 051 17 0 050 Set of Adapters to expansion tank. Connect special tool 17 0 002 17 0 000 Tester.

Pressurize cooling system to 1.5 bar and wait approx. 2 minutes.

Cooling system is tight if pressure drop does not exceed 0.1 bar.





Checking pressure relief valve in cap:

Remove rubber seal from special tool 17 0 002 17 0 000 Tester.

Connect special tools 17 0 052 17 0 050 Set of Adapters, 17 0 008 17 0 000 Tester and 17 0 002 17 0 000 Testerto cap.

Pressurize cap.

Opening gauge pressure must be 0.89 - 1.20 bar.