Diagnostic Manual, Body and Accessories,
Volume 1.1
Pneumatic Test Program - Test (RHR)
Preliminary work:
Diagnosis - Diagnostic Trouble Code (DTC) Memory 
11 PSE
PSE Control Module Test
32 PSE |
Data (mbar)
| Test procedure |
Permissible deviation |
| Allowable system leakage at 300 mbar
vacuum in 1 minute. |
 30
mbar |
| Allowable leakage of actuators with
lines at 300 mbar vacuum in 1 minute. |
25
mbar |
 |
Preparation for Test:
Vehicles up to 07/94:
1. Disconnect pneumatic multiple connector at the PSE control module.
2. Connect the tester to bottom side of pneumatic multiple connector at
FKS (RHR) using connector 129 805 04 44.
Vehicles starting 08/94:
1. Disconnect white/blue pneumatic line with socket from PSE control
module.
2. Connect tester to disconnected pneumatic line using connector
129 805 04 44.
Parts Required for Test:
1 Connector 129 805 04 44
2 Connectors, 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),
RH (German) = BA (English),
FKS (German) = RHR (English),
SFG (German) = RTG (English),
PÜ/P+ (OSL) (German) = PÜ/P+ (OSB) (English),
PU/P- (SRU) (German) = PU/P- (MVA) (English).
|
 |
Test scope |
Test connection |
Test condition |
Nominal value |
Possible cause/Remedy |
| 1.0 |
Complete system evacuated |
Black connector on tester.
FKS on bottom side of the multiple connector.
|
Apply 300 mbar vacuum to entire system. |
Vacuum loss 30
mbar in
1 minute. |
33 PSE 2.0,
32
2.0. |
Preparation for Test:
Vehicles up to 07/94:
1. Pry off white/blue rear head restraint retraction (RHR) pneumatic
lines at pneumatic multiple connector (using a 7 mm open end wrench).
2. Connect tester in sequence to each of the white/blue RHR pneumatic
lines using connector 007 997 61 82.
Vehicles as of 08/94:
1. Disconnect white/blue RHR pneumatic lines at pneumatic distributor.
2. Connect tester in sequence to each of the white/blue RHR pneumatic
lines using connector 007 997 61 82.
Letters on the distributor indicate whereto the pneumatic lines are leading.
A  Left actuator B
Right actuator
Note:
1. If an actuator does not operate correctly and no leakage is found, check
the respective lines for kinks or blockages.
2. On vehicles as of approx. 06/94, 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
|
|
Test scope |
Test connection |
Test condition |
Nominal value |
Possible cause/Remedy |
| 2.0 |
Vacuum leakage, pneumatic lines
and actuators |
Black connector
on tester. |
Apply 300 mbar vacuum to the actuator
and line. |
Vacuum loss 25
mbar in
1 minute.
|
32 3.0,
32
4.0. |
Preparation for Test:
1. Remove the actuator (See SMS, Repair Instructions, Job No. 91-400).
2. Connect the pressure/vacuum tester to the pneumatic connector
of the actuator.
Parts Required for Test:
1 Connector, 50 mm long 007 997 61 82
|
|
Test scope |
Test connection |
Test condition |
Nominal value |
Possible cause/Remedy |
| 3.0 |
Actuator holds vacuum |
Black connector
on tester. |
Apply 300 mbar vacuum
to the actuator. |
Vacuum loss 25
mbar in
1 minute.
|
Actuator. |
Preparation for Test:
1. Connect the tester at one end of the pneumatic line and seal
the other end with cap 124 805 02 44.
Parts Required for Test:
1 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 |
| 4.0 |
Vacuum leakage |
Black connector
on tester. |
Apply 300 mbar vacuum
to the lines. |
Vacuum loss
0 mbar in
1 minute.
|
Pneumatic line. |
|
Printable
version
