Mercedes-Benz ML320. Service manual - part 247

Fig. 75: Identifying CD Player With Changer 

GPS/CTEL ROOF ANTENNA, LOCATION - GF82.70-P-4111-01GH 

Model 163  

Location, illustration valid up to 31.08.01:  

The CTEL and GPS roof antenna (A2/49) is mounted on the rear of the roof in the middle of the vehicle.

 

CD player with changer, 
location

 

GF82.64-P-3113-01GI

 

CD player with changer, 
purpose



Playing audio 
compact discs (CD). 



Changing CD's 
contained in the 
magazine  

 

 

CD player with changer, 
design



CD changer 
magazine for 6 CD's 



Digital data bus 
(D2B) interface  

 
The installation position 
of the CD changer 
predefined by the factory 
is vertical, however 
another installation 
location is also possible 
by adapting the spring 
location

 

 

CD player with changer, 
function

 

GF82.64-P-3113-02GI

 

2001 Mercedes-Benz ML320 

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

  

me 

 

Fig. 76: Identifying CTEL And GPS Roof Antenna (31.08.01) 

Location, illustration valid as of 01.09.01:  

The CTEL and GPS roof antenna (A2/49) is mounted in the rear area of the vehicle roof.  

Fig. 77: Identifying CTEL And GPS Roof Antenna (01.09.01) 

Illustration shows model 163 up to 31.8.01 :

 

2001 Mercedes-Benz ML320 

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

  

me 

 

Fig. 78: Identifying CTEL And GPS Roof Antenna (31.8.01) 

Illustration shows model 163 as of 01.9.01 :  

Fig. 79: Identifying CTEL And GPS Roof Antenna (01.9.01) 

GPS/CTEL ROOF ANTENNA, DESIGN - GF82.70-P-4111-03GH 

Model 163 as of 01.9.01  

 

2001 Mercedes-Benz ML320 

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

  

me 

 

Fig. 80: Identifying GPS/CTEL Roof Antenna Design 

GPS/CTEL ROOF ANTENNA, FUNCTION - GF82.70-P-4111-04D 

Model 163 with code 353  

CTEL and GPS roof antenna (A2/49)  

The CTEL and GPS roof antenna (A2/49) is a combination antenna for the telephone and GPS. 

The integrated GPS antenna (A2/49a2) receives the GPS satellite signals. This antenna does not transmit 
signals. 

The integrated CTEL antenna (A2/49a1) receives and transmits GSM radio signals. 

The CTEL and GPS radio signals are transmitted to an antenna socket used by both. For this reason only one 
antenna cable is required. 

The CTEL and GPS roof antenna (A2/49) is an active antenna. It is supplied with DC power via the antenna 
cable (phantom feed). The electronic circuitry in the antenna must ensure that 



the telephone transmitter signals are only transmitted to the CTEL antenna (A2/49a1) .  



the signals received by both antennas are available at an antenna output.  

The antenna is connected to the CTEL and GPS antenna splitter (A2/57) by a coaxial cable. 

GPS/CTEL ROOF ANTENNA, FUNCTION - GF82.70-P-4111-04GH 

Model 163  

 

2001 Mercedes-Benz ML320 

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

  

me