Operation CHARM: Car repair manuals for everyone.

Model 210

Group: 82

Number: 347

Date: October 1995

SUBJECT:
MODEL 210
MODEL YEAR 1996
INSTALLATION OF CELLULAR TELEPHONE (CTEL) SYSTEM

Installing transmitter/receiver

1. Unpack contents of installation kit and compare to parts list at end of Work Instructions. Read through entire procedure to familiarize yourself with sequence of instructions and parts. Remove Operating Guide from kit and place in Owner's Literature pouch.

2. Disconnect and cover negative battery terminal.

3. Remove left rear wheel well liner.





4. Set transceiver bracket into place on wheel well (Figure 1). OBSERVE WIRE ROUTING SHOWN IN DIAGRAM. The two lower feet mount on 2 studs on wheel well. The upper stud mounts through a pre-punched hole in the hinge reinforcement forward of the antenna. Place two plastic nuts over studs. Secure upper mount with MS nut. Tighten all 3 fasteners.





5. Mount four adhesive rubber strips to U-shaped transmitter/receiver bracket (Figure 2).

6. Connect 25-pole connector to transceiver. Secure with integral thumbscrews.

7. Position transmitter/receiver onto trunk bracket with connectors facing fender, and antenna connector facing rear of vehicle.

8. Connect transmitter/receiver bracket assembly to main bracket using T15 screws provided.

9. Connect one end of antenna cable to connection on antenna splitter. Route cable along fender. Connect other end of cable to antenna connection on transmitter/receiver. Secure antenna cable to other harnesses using cable ties.

10. Reinstall wheel well liner.

Installing handset (HS)

11. Open main armrest compartment. Locate two small recesses on underside of tray and enlarge using an awl. Close main compartment and open lid to smaller telephone compartment. Remove oblong knockout at rear of compartment by striking sharply downward with a hammer handle.

12. Insert plugs into two holes on topside of cradle. Press plugs in firmly so that they do not interfere with the handset.

13. Open main armrest compartment and fasten cradle from underneath using two M4x15 torx screws. Cradle must be positioned completely forward in compartment.

14. Route handset cable thru oblong opening.





15. Open main compartment. Locate cover in rear of compartment. Open cover, connect handset connector to fixed connector. Route coil cord along recess so that it exits on right side opening (Figure 3). Close cover.

Installing microphone

16. Remove dome lamp assembly (SMS, Electrical System, Job no. AR82.20-0110E).





17. Measure and mark hole locations as per dimensions in illustrations (Figure 4).

18. Using microphone base as a template, carefully punch hole locations (a) and (b) to 4 mm using an awl.

19. Enlarge forward hole (a) (towards windshield) to 8 mm so that the microphone connector can pass through. Pass microphone connector and cable thru enlarged opening. Secure microphone base to headliner with 3x10 screw. Fasten back of screw with with speed nut. Pull microphone cable completely thru opening. Place 2 fingers over microphone mounting base from above the headliner. Snap, microphone onto base evenly. Do not latch one side first.

20. Connect one end of pre-amp cable (wrapped in anti-static foam) to microphone cable, the other end to the vehicle cable.

21. Reinstall dome lamp.

Installing In-dash controller (IDC)

22. Remove radio.





23. Remove storage box by pushing down on tab (arrow Fig. 5) while sliding box out of console.

24. Remove liner from framed lid assembly. Pry up gently on the retaining tabs (8) located on the top and bottom of the frame. Slide the box out of the frame from the rear.

25. Slide the IDC into the frame from the rear against the left side of the frame. Slide the small storage box (from the CTEL kit) into the opening to the right of the IDC. The projection on the storage box slides into a channel in the frame.

26. Partially reinstall the frame, IDC and storage box into the console. The rib in the console slides into a channel on the frame. Connect the 4-pole connector and RJ-45 connector from IDC to the vehicle harness connectors.





27. Push the IDC assembly into the console until it clicks into place (Figure 8).

28. Reinstall the radio.

29. Reconnect negative battery terminal.

30. Program telephone.

31. Test function.

Note:
To avoid disconnecting a call when replacing the handset in the cradle, in order to use the hands-free speaker, the "Hang-up Off" feature (as described in the Operation Guide) must be enabled.





Parts Information





Recommended Labor Time





Special Tools

IMPORTANT!
The Certificate of Cellular Telephone installation/Warranty Registration (S-2488-94C) MUST BE FILLED OUT and distributed as per the instructions. The white copy must be mailed to:

Mercedes-Benz of North America, Inc.
One Mercedes Drive
Montvale NJ 07645
Attn: Warranty Department

If the card is not filled Out and mailed in, future warranty claims for the telephone will be denied.