Home
Diagnostic Manual, Body and Accessories,
Volume 1.1

 Printable version
LOCATION:    3.5 Models 129, 140, 170   Pneumatic System Equipment (PSE) >   33 Pneumatic Test Program - Preparation for Test


Pneumatic Test Program - Preparation for Test

Test scope Test connection Test condition Nominal value Possible cause/Remedy
1.0 Central locking system
Left front door
Vacuum supply
Connector FT to PSE control module
Black connector on tester.
Cap all other connections on the PSE control module.
Close doors.

Lock vehicle using interior switch (CL).
450 mbar in
1.2 sec.
PSE control module (A37),
23 PSE/CL 1.0,
23 PSE/CL 2.0,
23 PSE/CL 3.0
2.0 Central locking system
Left front door
Pressure supply
Connector FT to PSE control module.
Yellow connector on tester.
Cap all other connections on the PSE control module.
Close front doors.

Unlock vehicle using interior switch (CL).
450 mbar in
0.8 s
(A37),
23 PSE/CL 1.0,
23 PSE/CL 2.0,
23 PSE/CL 3.0
3.0 Central locking system
Right front/right rear
doors (model 140 sedan),
Passenger-side door (Model 129/140 coupé) or
Passenger-side door/trunk lid (Model 170)
Vacuum supply
Connector BFT or BFT/Fond toPSE control module.
Black connector on tester.
Cap all other connections on the PSE control module.
Close doors.

Lock vehicle using interior switch (CL).
450 mbar in
1.2 s
PSE control module (A37),
23 PSE/CL 1.0,
23 PSE/CL 2.0,
23 PSE/CL 3.0
4.0 Central locking system
Passenger-side/rear doors
(Model 140),
Passenger-side door
(Model 129/140 coupé) or
Passenger-side door/trunk lid (Model 170)
Pressure supply
Connector BFT or BFT/rear to PSE control module.
Yellow connector on tester.
Cap all other connections on the PSE control module.
Close doors.

Unlock vehicle using CL interior switch.
450 mbar in
0.8 s
(A37),
23 PSE/CL 1.0,
23 PSE/CL 2.0,
23 PSE/CL 3.0
5.0 Central locking system
Trunk lid
Vacuum supply
Connector Heck or HD to PSE control module.
Black connector on tester.
Cap all other connections on the PSE control module.
Close all doors
Lock vehicle using CL switch
450 mbar in
1.2 s
(A37),
23 PSE 1.0,
23 PSE 2.0,
23 PSE 3.0
6.0 Central locking system
Trunk lid
Pressure supply
Connector Heck or HD to PSE control module.
Yellow connector on tester.
Cap all other connections on the PSE control module.
Close all doors
Lock vehicle using IR transmitter.
Unlock vehicle using CL interior switch.
450 mbar in
0.8 s
(A37),
23 PSE/CL 1.0,
23 PSE/CL 2.0,
23 PSE/CL 3.0,
4.10 23
7.0 Central locking system
Fuel filler flap
Vacuum supply
Connector TK or Tank to PSE control module.
Black connector on tester
Cap all other connections on the PSE control module.
Close all doors.
Lock vehicle using IR transmitter.
450 mbar in
1.2 s
(A37),
23 PSE/CL 1.0,
23 PSE/CL 2.0,
23 PSE/CL 3.0,
4.10 23
8.0 Central locking system
Fuel filler flap
Pressure supply
Connect TK or Tank to PSE control module.
Yellow connector on tester
Cap all other connections on the PSE control module.
Close all doors.
Lock vehicle using IR transmitter.
Unlock vehicle using CL interior switch.
450 mbar in
0.8 s
(A37),
23 PSE/CL 1.0,
23 PSE/CL 2.0,
23 PSE/CL 3.0
9.0 Multi-contour seat backrest
(Models 129, 140 only)
Pressure supply
Connect MKL to PSE control module.
Yellow connector on tester.
Cap all other connections on the PSE control module.
Igntion: ON/OFF
Pump runs with 4 second delay.
450 mbar in
0.8 s
(A37),
23 PSE 2.0,
23 PSE 9.0,
23 PSE 10.0,
23 PSE 11.0,
23 PSE 12.0,
23 PSE 13.0,
23 PSE 14.0,
23 PSE 15.0
10.0 RHR retraction in rear
Vacuum supply
(Model 140 sedan only)
Connector Heck/KAF or HFE/KAF to PSE control module.
Black connector on tester
Cap all other connections on the PSE control module.
Extend RHRs'.
Ignition: ON
Press RHR switch.
450 mbar in
1.2 s
(A37),
See AD80.20-P-6003-01A
11.0 Manifold vacuum assist
Vacuum supply
Model 140 only)
Connector MVA to PSE control module.
Black connector on tester.
Cap all other connections on the PSE control module.
Ignition: ON/OFF
Pump runs with 8 second delay.
450 mbar in
1.2 s
(A37),
23 PSE 2.0
12.0 Remote trunk release
Pressure supply
(Model 129, 140 only)
Connector Heck/KAF or HFE/KAF to PSE control module.
Yellow connector on tester.
Cap all other connections on the PSE control module.
Press RTR switch.
450 mbar in
0.8 s
(A37),
See AD80.20-P-6002-01A
13.0 Retractable trunk lid grip
Vacuum supply
(Model 129, 140 only)
Connector SFG to PSE control module.
Black connector on tester.
Cap all other connections on the PSE control module.
Close trunk lid.
Pump runs with a 0.5 second delay.
450 mbar in
1.2 s
(A37),
D.M., B&A, Vol. 1.1, section 3.1,
23,

D.M., B&A, Vol. 1.1, section 3.1,
32

14.0 Retractable trunk lid grip
Pressure supply
(Model 129, 140 only)
Connector SFG to PSE control module.
Yellow connector on tester.
Cap all other connections on the PSE control module.
CL system unlocks.
Open trunk lid.
450 mbar in
0.8 s

(A37),
D.M., B&A, Vol. 1.1, section 3.1,
23,

D.M., B&A, Vol. 1.1, section 3.1,
32
15.0 Central locking system
Safety switch time

 

 

Cap the following connectors on PSE using rubber caps:
Model 140:
HFE/KAF, MVA, OSB, RTR
Model 129:
HECK/KAF, OSB, RTR
Model 170:
None

Close drivers-side doors.
Unlock vehicle using CL interior switch.
PSE control module runs approx. 10 ±1seconds (A37),
23 PSE/CL 1.0
16.0 Additional consumers
Safety switch time
(Models 129, 140 only)

 
Cap the following connectors on PSE using rubber caps:
Model 140:
FT, BFT/fond, TK, RTR, HFE/KAF
Model 129:
FT, BFT, Tank, RTR
Ignition: ON
PSE control module runs approx. 60seconds (A37),
See AD80.20-P-6003-01A