Mercedes-Benz ML320. Manual — part 330

RETROFIT WIRING HARNESS OF HANDS-FREE SYSTEM - AZ82.70-P-0005-02GH

1. Expose connector for telephone handset (A34) in radio shaft.

Fig. 402: Identifying Telephone Handset Connector (A34)

2. Connect connector (8) to interface (4).

3. Connect antenna for telephone handset (A34).

4. Connect connection line (5) to interface (4).

B6 788 0388

FA console RHS (java)

1

A005 997 9390

Tie strap

5

B6 682 8607

Wiring harness (tel. on radio)

1

B6 682 8608

CTEL antenna

1

B6 682 8609

Cover (with microphone), color:
java (as of 01/01)

1

B6 682 8610

Cover (without microphone)
color: light gray (as of 01/01)

1

B6 682 8611

Active microphone in design
function housing (up to 12/00)

1

2001 Mercedes-Benz ML320

1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis

me

Fig. 403: Identifying Connector, Connection Line & Interface

5. Apply special glue to rear of microphone (arrow) and glue hands-free system microphone (B25) included

in installation kit to headliner.

Align microphone so that pickup opening points towards driver.

Fig. 404: Locating Rear Of Microphone & Hands-Free System Microphone (B25)

6. Glue microphone lead behind headliner as shown in figure and along right A-pillar below instrument

panel to radio shaft.

7. Connect all control and operation modules and connect battery for checking proper function of telephone.

Avoid error messages from unconnected control modules.

2001 Mercedes-Benz ML320

1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis

me

Fig. 405: Locating Microphone Lead Behind Headliner

8. Insert test telephone in portable cellular telephone holder and set microphone sensitivity with "Micro"

adjustment screw (arrow) on interface box (4).

Adjust so that feedback and whistling are not audible and the volume is optimum for speaking and

listening.

9. Disconnect battery again.

Fig. 406: Identifying Microphone Sensitivity Adjustment Screw & Interface Box

10. Fasten interface box (4) and connection leads at rear in radio shaft as shown in figure with double-sided

adhesive tape.

2001 Mercedes-Benz ML320

1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis

me

Fig. 407: Identifying Interface Box

RETROFITTING HANDS-FREE SYSTEM - AZ82.70-P-0005GH

MODEL 163 as of 1.10.99

for Mercedes-Benz FSE hands-free system

Fig. 408: Identifying Hands-Free System Components

Removal

1

Connect quiescent current
retention unit

*WH58.30-Z-1012-09A

Risk of explosion from

No fire, sparks, naked

AS54.10-Z-0001-01A

2001 Mercedes-Benz ML320

1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis

me