Legend of wiring diagram for cockpit management and data system (COMAND) control unit - PE82.85-P-2101-60RAB
Model 251 up to model year 08/YoM 97 with CODE (523) MB Audio 20 radio with CODE (525) MB Audio 50 APS radio with CODE (352) COMAND APS (with navigation) except CODE (494) USA version except CODE (498) Japan version control units A2, A2/56 or A40/3
| Code | Designation | Coordinates |
|---|---|---|
| A0 | Color code key | 64A |
| A2 | Radio | 4A |
| A2 | Radio | 12A |
| A2 | Radio | 20A |
| A2 | Radio | 28A |
| A2 | Radio | 36A |
| A2 | Radio | 44A |
| A2 | Radio | 52A |
| A2/19 | FM rear window antenna amplifier | 54L |
| A2/56 | Radio and navigation unit | 3A |
| A2/56 | Radio and navigation unit | 11A |
| A2/56 | Radio and navigation unit | 19A |
| A2/56 | Radio and navigation unit | 27A |
| A2/56 | Radio and navigation unit | 35A |
| A2/56 | Radio and navigation unit | 43A |
| A2/56 | Radio and navigation unit | 52A |
| A2/93 | Roof antenna module | 49L |
| A40/3 | COMAND operating, display and controller unit | 4A |
| A40/3 | COMAND operating, display and controller unit | 12A |
| A40/3 | COMAND operating, display and controller unit | 20A |
| A40/3 | COMAND operating, display and controller unit | 28A |
| A40/3 | COMAND operating, display and controller unit | 36A |
| A40/3 | COMAND operating, display and controller unit | 44A |
| A40/3 | COMAND operating, display and controller unit | 53A |
| A40/4 | DVD player | 20L |
| A49/1 | Interference filter 1 | 57L |
| A49/1x1 | Interference filter 1 input connector | 57J |
| A90/1 | TV combination tuner (analog/digital) | 43L |
| F4 | Load compartment fuse and relay box | 3L |
| F4 | Load compartment fuse and relay box | 62L |
| F4f20 | Fuse 20 | 62L |
| F4f25 | Fuse 25 | 3L |
| H4/3 | Left rear door speaker | 29L |
| H4/4 | Right rear door speaker | 32L |
| H4/5 | Left front door speaker | 23L |
| H4/6 | Right front door speaker | 26L |
| H4/33 | Left front door tweeter | 25L |
| H4/34 | Right front door tweeter | 28L |
| H4/35 | Left rear door tweeter | 31L |
| H4/36 | Right rear door tweeter | 34L |
| N10/8 | Rear SAM control unit | 60A |
| N66/8 | Rear audio control unit | 16L |
| N66/10 | Backup camera voltage supply module | 39L |
| U500 | Not valid for Sound System | 22C |
| U563 | Valid for rear entertainment (DVD) | 18C |
| U661 | Valid for TV and video in rear | 42E |
| U703 | Valid for portable CTEL preinstallation | 10C |
| U731 | Valid for head unit high | 1B |
| U731 | Valid for head unit high | 35C |
| U865 | Valid for CD Radio Entry Audio 20 | 1A |
| U866 | Valid for head unit APS operating unit, Audio 50 | 1A |
| U894 | Not valid in vehicles with rear audio | 58E |
| U895 | Valid for rear audio | 14C |
| U899 | Valid for backup camera | 38E |
| W17/1 | Ground (left rear seat) | 6H |
| W29/8 | Ground (left D-pillar) | 55H |
| X30/7 | Voltage distributor (CAN) connector | 9L |
| X35/1 | Left front door separation point | 23E |
| X35/2 | Right front door separation point | 26E |
| X35/3 | Left rear door separation point | 29E |
| X35/4 | Right rear door separation point | 32E |
| X39/37 | CTEL separation point | 11E |
| X39/45 | Walkman separation point | 36L |
| Z204/6 | Voltage distributor connector, left rear seat Circuit 31 (1) | 6L |
| MOST | Media Oriented System Transport | 13B |