Preliminary work: PSE control module voltage supply 23 PSE 1.0, 2.0 PSE Control Module Test 32 PSE

Data (mbar)

Test procedure	Permissible deviation
Allowable system leakage of 300 mbar vacuum in 1 minute.	30 mbar
Allowable leakage of actuators with line at 300 mbar vacuum in 1 minute.	25 mbar

Vacuum distribution block used with gasoline models only

Preparation for Test: 1. Provide access to PSE control module (A37), disconnect white RHR pneumatic line with socket from PSE control module. 2. Connect tester to disconnected socket using connector 202 805 03 44. If an actuator does not operate correctly and no leakage is found, check the respective lines for kinks or blockages. Parts Required for Test: 1 Connector 202 805 03 44 2 Rubber hose, 50 mm long 007 997 61 82 1 Pneumatic line, 1 m long 000 158 14 35 Note: The connections on the PSE control module and pneumatic multiple connector are marked with their German acronyms. In other words: ZV (German) = CL (English), SRU (German) = MVA (English), OSL (German) = OSB (English).

	Test scope	Test connection	Test condition	Nominal value	Possible cause/Remedy
1.0	Complete system evacuated	Black connector on tester to connector	Apply 300 mbar vacuum to entire system.	Vacuum loss 30 mbar in 1 minute.	32 PSE/RHR 2.0, 32 PSE/RHR 3.0

Preparation for Test: 1. Remove RHR actuators. 2. Connect tester to pneumatic connection of actuator. Parts Required for Test: 2 Rubber hose, 50 mm long 007 997 61 82 1 Pneumatic line, 1m long 000 158 14 35 1 Socket 202 800 02 53

	Test scope	Test connection	Test condition	Nominal value	Possible cause/Remedy
2.0	Actuator hold vacuum	Black connector on tester.	Apply 300 mbar vacuum to actuator.	Vacuum loss 25 mbar in 1 minute.	Actuator leaks. Replace.

Preparation for Test: 1. Connect tester to one end of pneumatic line and plug other end with cap, part no. 124 805 02 44. Parts Required for Test: 1 Connector 202 805 03 44 3 Cap 124 805 02 44 1 Connector, 50 mm long 007 997 61 82

	Test scope	Test connection	Test condition	Nominal value	Possible cause/Remedy
3.0	Vacuum leakage	Black connector on tester.	Apply 300 mbar vacuum to pneumatic line.	Vacuum loss 0 mbar in 1 minute.	Pneumatic line leaks. Repair/Replace.