Test Steps - Section 32

Preliminary work:
PSE control module voltage supply: PSE, ETP test steps 1.0, 2.0
PSE Control Module Test: PSE, Pneumatic System Equipment (PSE) Control Module

Data (mbar)
Test Procedure
Allowable system leakage at 600 mbar pressure in 1 minute. Permissible deviation <=30 mbar

Special Tools:

A. Entire system

Preparation For Test:
1. Provide access to PSE control module (A37) and disconnect grey OSB pneumatic line with socket from PSE control module.
2. Connect tester to disconnected pneumatic line using connector 202 805 03 44.

Parts Required for Test:
1 Connector 202 805 03 44
2 Pneumatic 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 Step 1.0:

Test Steps 2.0 & 3.0:

Test Step 4.0:

B. Line with pressure reservoir/line with control valve

Preparation For Test:
1. Connect tester to the grey OSB pneumatic line which leads to either the pressure reservoir below the rear seat cushion or to the control valve, using connector 202 805 03 44.

NOTES:
- When testing the pneumatic lines with the pressure reservoir, cap the pneumatic lines which lead to the control valves.
- When testing the pneumatic lines with control valves, disconnect the pneumatic line at pressure reservoir and cap using connector 124 805 02 44.

The disconnected pneumatic lines are to be reconnected to the distributor with connector 007 997 61 82.

Parts Required for Test:
1 Connector, 50 mm long 007 997 61 82
1 Connector 202 805 03 44
1 Cap 000 987 11 45
2 Connector 124 805 02 44

Test Steps 5.0 & 6.0:

C. Control valve

Preparation For Test:
1. Connect tester to separation connection underneath seat.

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

Test Step 7.0:

D. Lines

Preparation For Test:
1. Connect tester to one end of pneumatic line and plug other end with cap, part no. 000 987 11 45.

Parts Required for Test:
1 Cap 000 987 11 45
1 Rubber hose, 50 mm long 007 997 61 82
1 Connector 202 805 03 44
1 Connector 124 805 02 44

Test Step 8.0:

E. Air cushion

Preparation For Test:
1. Provide access to connector between control valve and pneumatic lines.

Parts Required for Test:
1 Rubber hose, 50 mm long 007 997 61 82
1 Pneumatic line, 1 m long 000 158 14 35