Preliminary work: 23

Data (mbar)

Test procedure	Permissible deviation
Permissible leakage from the entire system at >2 bar pressure in 1 minute.	Max. 100 mbar

Preparation for Test: 1. Provide access to closing assist supply pump (M14/3). 2. Assemble test lines according to connection diagram ( 33, Figures). 3. Connect test lines and pressure gauge according to connection diagram ( 33, Figure 1 or 2). Note: If one or more pneumatic circuits of the CA supply pump are switched off by the safety feature (incorrect pressure buildup times), the pump can be reset by briefly interrupting circuit 30. This can be done by removing fuse F4-9 in rear fuse box F4 for approx. 5 seconds, or by disconnecting the connector from the CA supply pump (M14/3). Note: Any suitable pressure gauge which reads in bar (range 1 to 5 bar) can also be used.

Conventional tools, test equipment

Description	Brand, model, etc.
Engine analyzer 1)	Bear DACE (Model 40-960) Sun MEA-1500MB

1) Available through the MBUSA Standard Equipment Program.

Parts Required for Test

Part No.	Description	Quantity	Item no. ( 33, Figures 1 and 2)
007 997 61 82	Rubber hose	6 meters	3
129 800 09 15	Line	1	2
126 800 00 78	Check valve	1	6
129 805 04 44	Pneumatic connector	1	1
000 987 11 45	Cap	1	5
117 078 01 45	Junction connector	1	20
140 800 51 81	Line	1	21