S 320 SWB (140.032) L6-3.2L (104.994) (1994)
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CHECKING VALVE BLOCK (Y11):
1. Ignition switched off.
2. Connect grey-green vacuum line to tester.
3. Evacuate with tester and read off pressure gauge. If a pressure increase occurs on the pressure gauge, renew valve block (Y11) or grey-green
vacuum line.
NOTE: If no fault was found on the above test, the vacuum elements of the automatic climate control (KLA) are to be checked.
