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Created: 28 Aug 2007

Last Updated: 3 Feb 2008

The W203 C Class and W209 CLK class has had two different technologies used in the Audio systems, D2B in pre facelift (MY 2005) cars and MOST in post facelift cars.

The W209 CLK class, uses the same PRE facelift parts as the W209. After the facelift, the parts are completedly different.

The W463 G class also used pre facelift audio units, however the COMAND units are different and C class parts will not function if installed in G class, and if you install G class units in a C class then you will need to add extra wiring to make it work.

This document covers the pre-facelift (i.e D2B system) audio system part numbers. The post facelift documents for  the C and CLK class are different and can also be found at www.mercupgrades.com

This document shows the part numbers for the different systems - US, European and Japanese systems are all different.

Mercedes regularly updated the audio system in the W203 C class and W209 CLK class and the later part numbers in each section are the newer ones (where the entries show "replaces above"). Sometimes there are more than one part number that seems "current" for a given vehicles.

The W209 CLK class was first released for around MY2003, so the MY2002 parts in the list below were never actually fitted to the CLK.

The post facelift system can not be reasonably fitted to the pre-facelift car - many other control units in the car need updating to make this work, and its almost certainly cheaper to just buy a post facelift car !

 

Country Description Part Number
     
Europe COMAND (option 352) used in MY2002  on C class A203 820 91 89
  COMAND, replaces above A203 820 96 89
  COMAND from MY2003 on C/CLK A203 827 36 42
  COMAND, replaces above A203 827 52 42
  COMAND (option ET4) on G Wagen A463 820 10 89
  COMAND on G Wagen, replaces above A463 820 15 89
  COMAND on G Wagen, replaces above A463 820 16 89
     
Europe Audio 10 Cassette with RDS (option 753) A203 820 01 86
  Audio 10 Cassette with RDS A203 820 15 86
  Audio 10 Casette with RDS, replaces above A203 820 16 86
  Audio 10 Casette without RDS (option 754) A203 820 07 86
  Audio 10 Casette without RDS, replaces above A203 820 18 86
  Audio 10 CD with RDS (option 756) A203 820 12 86
  Audio 10 CD with RDS, replaces above A203 820 17 86
  Audio 10 CD, with RDS, replaces above A203 820 22 86
     
Europe Audio 30 without RDS (option 752) A203 820 09 86
  Audio 30 without RDS, replaces above A203 820 19 86
     
Europe Audio 30 APS (option 353) A203 820 67 26
  Audio 30 APS, replaces above A203 820 11 85
  Audio 30 APS, replaces above A203 820 34 85
  Audio 30 APS, replaces above A203 820 46 85
     
USA COMAND (option 352) used in MY2002, on C A203 820 92 89
  COMAND, replaces above A203 827 31 42
  COMAND used in MY2003, on C/CLK A203 827 37 42
  COMAND, replaces above A203 827 53 42
  COMAND, used in MY2004 on C/CLK A203 827 48 42
  COMAND, (code ZU7/ZU8) used in G Wagen A463 820 17 89
  COMAND, G Wageb, replaces above A463 820 18 89
     
USA Audio 30 Cassette (option 254) A203 820 10 86
  Audio 30 Cassette, replaces above A203 820 20 86
  Audio 30 Cassette, replaces above A203 820 24 86
  Audio 30 Cassette A203 820 25 86
     
Japan COMAND (option 352) used in MY2002 A203 820 93 09
  COMAND, replaces above A203 827 23 42
  COMAND, used from MY2003 A203 827 54 42
     
Japan Audio 30 Cassette (option 255) A203 820 11 86
  Audio 30 Cassette A203 820 14 86
  Audio 30 Cassette, replaces above A203 820 21 86
     
All Glovebox mounted CD changer, to mid 2004 A203 820 90 89
  Ditto, after mid 2004 but pre facelift. A203 870 00 89
  Ditto, replace above A203 870 33 89
  Mounting for glovebox CD changer (Left Hand Drive) A203 820 07 14
  Mounting for glovebox CD changer (Right Hand Drive) A203 820 08 14
  CD changer screws (4 needed) N000000 01955
  Mounting screw (1 needed) A001 984 64 29
  Wiring harness A203 540 08 09
  Fibre optic harness A203 540 34 08


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