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Fig. 361: Identifying Console And Screw
5. Route tieouts (A and B) for cellul ar telephone wiring harness (2) and an tenna lead (17) to console (12)
and connect.
6. Form excess lengths of the connection cables into a loop and secure with Velcro (18).
7. Route cables for connection plug (5) behi nd the center console to the right seat.
Fig. 362: Identifying Cellular Telepho ne Wiring Harness And Antenna Lead
8. Insert console (12) into mount holes on air condi tioning control module using locating pin and align at
instrument panel.
9. Mark hole for screw (13) and drill with 2.5 mm dia. bit.
When drilling in instrument pa nel do not damage parts behind.
10. Screw console (12) to instru ment panel with screw (13).
2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electr ical System - Body - 163 Chassis
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Page 1922 of 4133
Fig. 363: Identifying Console And Screw
11. Expose tied-back cables with coupli ng (5) behind the front passenger seat.
Fig. 364: Identifying Coupling
12. Connect antenna lines (arrow ) and insulated with Velcro.
Fig. 365: Identifying Antenna Lines
13. Connect blue coupling to connection plug (5).
14. Tie back cables under the se at and secure with Velcro.
2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electr ical System - Body - 163 Chassis
me
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Page 1923 of 4133

Fig. 366: Identifying Connection Plug
RETROFIT WIRING HARNESS - AZ82.70-P-0001-04C
Model 163 as of 1.12.99 up to 31.8.00 for Nokia 6090 fixed installation CTEL
1. Prepare telephone wiring harness (2) as shown in figure.
2. Tie back audio line-out cable with 4-pin connector (25) (is not required).
3. Expose two red (rt) and two black (sw) cables.
Fig. 367: Identifying Telephone Wiring Harness
4. Unlock catch (arrows) of connector (21) one detent.
5. Fit cable terminals (22) to the red (rt) leads and insert into chambers 3 and 9 of the connector (21).
6. Fit cable terminals (22) to the black (sw) leads and insert into chambers 4 and 6.
7. Insulate orange cable and tie back (is not required).
8. Fit cable terminal (22) to blue (bl) lead and insert into chamber 5.
9. Fit cable terminal (22) to yellow (ge) lead and insert into chamber 2.
10. Fit cable terminal (22) to gray (gr) lead and insert into chamber 7.
11. Lock connector (21).
2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
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Page 1924 of 4133
Fig. 368: Identifying Lock Connector And Cable Terminals
12. Insert wiring harness (2) into instrument panel working from the glove compartment.
The tied-back part must be placed below the strut (arrows) at the glove compartment.
Fig. 369: Identifying Telephone Wiring Harness
13. Connect telephone wiring harness (2) to adapter wiring harness (9).
14. Check fuse (23) (a 10A fuse should be present).
2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
me
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Page 1925 of 4133
Fig. 370: Identifying Fuse A nd Telephone Wiring Harness
15. Connect adapter wiring harness (9) to radio wiring harness and insert into radio slot.
16. Place microphone cable of telephone wi ring harness (2) into radio slot.
Fig. 371: Identifying Adapter Wiring Ha rness And Telephone Wiring Harness
17. Route connection cable of telephone wiring harness (2) to telephone handset in middle tunnel as shown in
figure.
Fig. 372: Identifying Telephone Wiring Harness
RETROFIT WIRING HARN ESS - AZ82.70-P-0001-04D
Model 163 as of 1.12.99 up to 31.8.00 for Nokia 3110 portable CTEL
2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electr ical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:13 PMPage 430 © 2006 Mitchell Repair Information Company, LLC.
Page 1926 of 4133

1. Shop-make wiring harness as specified in steps 2 to 6.
2. Cut cables at connection adapter (20) to length of approx. 150 mm.
3. Install terminal (22) on five fr ee lead ends of connection adapter (20) (not to green lead).
4. Release catch (arrows) at connector (21) one detent.
5. Insert terminal of red (rt) lead into chamber 3
Terminal of yellow (ge) lead into chamber 2
Terminal of black (sw) lead into chamber 4
Terminal of blue (bl) lead into chamber 5
Insulate terminal of green (gn) lead and tie back (not required).
Fig. 373: Identifying Lock Connector And Terminals
6. Lock connector (21).
7. Connect prefabricated wiring harness (8) to adapter wiring harness (9).
8. Check fuse (23) (a 10A fuse should be present).
Fig. 374: Identifying Adapter Wiring Harness And Fuse
9. Connect adapter wiring harness (9) to radio wiring harness.
10. Connect microphone cable and loudspeaker cable to hands-free unit (3).
11. Plu
g in connection cable (2) and fit on cover (6).
2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electr ical System - Body - 163 Chassis
me
Saturday, October 02, 2010 3:30:13 PMPage 431 © 2006 Mitchell Repair Information Company, LLC.
Page 1927 of 4133
12. Connect prefabricated wiring harness (8) to connector (24) for hands-free system.
Fig. 375: Identifying Adapter Wiring Harness And Hands
-Free Unit
13. Attach hands-free unit (3) with assembly base (4) to mount of hands-free unit (20).
Speaker mount (21) is attached to the assembly base.
14. Route pre-assembled hands-free system into the area at the back to the AC operating unit.
Fig. 376: Identifying Hands
-Free Unit And Assembly Base
RETROFIT WIRING HARNESS. - AZ82.70-P-0001-04G
MODEL 163 as of 1.10.01
1. Prepare portable cellular telephone wirin
g harness (2) as shown in figure
2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
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Page 1928 of 4133
Fig. 377: Identifying Portable Cellular Telephone Wiring Harness
2. Bolt FSE interface (3) to interface bracket (15) with 2 torx bolts (16).
3. Connect portable CTEL wiring harness (2) to FSE interface (3).
Fig. 378: Identifying Portable CTEL Wiring Harness And Components
2001 Mercedes-Benz ML320
1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
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Saturday, October 02, 2010 3:30:13 PMPage 433 © 2006 Mitchell Repair Information Company, LLC.