Curiosii for ever!: Car repair manuals for everyone.
Home >> Mercedes Benz >> 1996 >> C 220 (202.022) L4-2.2L (111.961) >> Repair and Diagnosis >> Technical Service Bulletins >> All Technical Service Bulletins >> Cellular - Installation of Cellular Telephone (CTEL) >> Work Instructions >> Model 129 and 140 >> A. Installing Transmitter/Receiver For Mobile CTEL (129/140)

A. Installing Transmitter/Receiver For Mobile CTEL (129/140)

1. Remove left trunk panel.





Model 129 (steps 2 - 4)

Note:
If the Mercedes-Benz CD changer is also installed, its bracket will be used for the telephone. The telephone components mount on the outer wall of CD bracket (Figure 11). The bracket supplied with telephone is NOT required.

2. Assemble transmitter/receiver to mounting plate using end brackets (ensure that the antenna connector is on top).





3. Attach voice recognition module (VRM) to mounting plate with four short screws (Figure 12).

4. Remove protective caps from studs in bottom of wheel well. Partially remove carpeting from left trunk area. Install clips to longitudinal rail over existing holes. Replace carpeting. Position transmitter/receiver mounting plate over studs in wheel well. Insert sheet metal screws through holes in transmitter/receiver plate into clips, do not tighten. Place nuts on studs and tighten. Tighten sheet metal screws.

Model 140 only (steps 2 - 4)

2. Assemble transmitter/receiver to mounting plate in vehicle using end brackets (ensure that the antenna connector is on top).





3. Insert well nuts into two large openings on mounting plate (arrows, Figure 13).

4. Slide long screws through holes (upper left and lower right) in voice recognition module (VRM) and secure to mounting plate at well nuts.

5. Disconnect 4-pole connector from antenna. Open connector locking strap. Insert bare connector from VRM into location "2" of the 4-pole connector. Insert from rear of connector. Observe proper pin orientation. Close locking strap. Reconnect 4-pole connector to antenna.

6. Connect 4-pole connector (power supply) to top of transmitter/receiver.

7. Connect VRM harness to 12-pole connector on bottom of transmitter/receiver.

8. Connect 12-pole vehicle harness connector to 12-pole connector on bottom of VRM.

9. Connect antenna cable to transmitter/receiver.

10. Connect VRM speaker connector to vehicle harness.

11. Secure loose wires/cables with cable tie.

12. Reinstall left wheel well liner.

13. Install fuse (7.5A for model 140, 8A for model 129) in auxiliary fuse box (located in trunk).

14. Reconnect negative battery terminal.

15. Program telephone.

16. Recode radio.

17. Resynchronize window settings (Model 140 only).

18. Test function.
pro multis · Curiosii