| J503 | Control unit with display for radio and navigation |
| J519 | Onboard supply control unit |
| J533 | Data bus diagnostic interface |
| J650 | Multimedia system control unit, behind dash panel, centre |
| R | Radio |
| R41 | CD changer, on left in luggage compartment |
| T12f | 12-pin connector |
| T12g | 12-pin connector |
| T12k | 12-pin connector |
| T20c | 20-pin connector |
| T30a | 30-pin connector, Preparation for MEDIA-IN socket |
| 477 | Earth connection (audio), in main wiring harness |
| 482 | Earth connection 2 (audio), in main wiring harness |
| |
| A46 | Positive connection (30 - from radio), in dash panel wiring harness |
| B415 | Connection 1 (infotainment CAN bus, high), in main wiring harness |
| B421 | Connection 1 (infotainment CAN bus, low), in main wiring harness |
| * | Only models with CD changer |
| D | - | 8-pin connector - Intermittent wiper switch -E22- , Rear wiper switch -E34- , Intermittent wiper control -E38- , multi-function display call-up button -E86- : |
| | 1 | - | Input of intermittent wiper switch -E22- |
| | 2 | - | Terminal 31 for intermittent wiper switch -E22- , for rear wiper switch -E34- |
| | 3 | - | Input of rear wiper switch -E34- |
| | 4 | - | not assigned |
| | 5 | - | Input of multi-function display call-up button -E86- , of multi-function display memory switch -E109- |
| | 6 | - | Terminal 31 for intermittent wiper control -E38- , for multi-function display call-up button -E86- , for multi-function display memory switch -E109- |
| | 7 | - | Input of intermittent wiper control -E38- |
| | 8 | - | not assigned |
| D | - | 6-pin connector - Intermittent wiper switch -E22- , Rear wiper switch -E34- , Intermittent wiper control -E38- , Multi-function display call-up button -E86- , Multi-function display memory switch -E109- : |
| | 1 | - | Input of multi-function display call-up button -E86- , of multi-function display memory switch -E109- |
| | 2 | - | Terminal 31 for intermittent wiper control -E38- , for multi-function display call-up button -E86- , for multi-function display memory switch -E109- |
| | 3 | - | Input of intermittent wiper control -E38- |
| | 4 | - | Input of rear wiper switch -E34- |
| | 5 | - | Terminal 31 for intermittent wiper switch -E22- , for rear wiper switch -E34- |
| | 6 | - | Input of intermittent wiper switch -E22- |
| 1 | - | Fuel pump control unit -J538- |
| 2 | - | Fuel pump control unit -J538- |
| 3 | - | Fuel level sender 2 -G169- |
| 4 | - | Fuel level sender 2 -G169- |
| 5 | - | not assigned |
| 6 | - | not assigned |
| 7 | - | Immobilizer reading coil -D2- |
| 8 | - | Immobilizer reading coil -D2- |
| 9 | - | Speed signal - Ouput |
| 10 | - | not assigned |
| 11 | - | Oil level and oil temperature sender -G266- |
| 12 | - | not assigned |
| 13 | - | not assigned |
| 14 | - | not assigned |
| 15 | - | Brake lining/pad wear sender, front left -G34- |
| 16 | - | Terminal 31 - Input |
| 17 | - | Windscreen washer fluid level sender -G33- |
| 18 | - | Coolant shortage indicator sender -G32- |
| 19 | - | Ambient temperature sensor -G17- |
| 20 | - | Terminal 31 - sender earth - output |
| 21 | - | not assigned |
| 22 | - | not assigned |
| 23 | - | not assigned |
| 24 | - | not assigned |
| 25 | - | Handbrake warning switch -F9- |
| 26 | - | Brake fluid level warning contact -F34- |
| 27 | - | Oil pressure switch -F1- |
| | - | Oil pressure switch for reduced oil pressure -F378- |
| 28 | - | CAN H, Control unit in dash panel insert -J285- |
| 29 | - | CAN L, Control unit in dash panel insert -J285- |
| 30 | - | not assigned |
| 31 | - | Terminal 15 - Input |
| 32 | - | Terminal 30 - Input |
| 1 | - | Fuel pump control unit -J538- |
| 2 | - | Fuel pump control unit -J538- |
| 3 | - | Fuel level sender 2 -G169- (only for vehicles with four-wheel drive) |
| 4 | - | Fuel level sender 2 -G169- (only for vehicles with four-wheel drive) |
| 5 | - | not assigned |
| 6 | - | not assigned |
| 7 | - | Immobilizer reading coil -D2- |
| 8 | - | Immobilizer reading coil -D2- |
| 9 | - | Speed signal - Ouput |
| 10 | - | not assigned |
| 11 | - | Oil level and oil temperature sender -G266- |
| 12 | - | not assigned |
| 13 | - | not assigned |
| 14 | - | not assigned |
| 15 | - | Brake lining/pad wear sender, front left -G34- |
| 16 | - | Terminal 31 - Input |
| 17 | - | Windscreen washer fluid level sender -G33- |
| 18 | - | Coolant shortage indicator sender -G32- |
| 19 | - | Ambient temperature sensor -G17- |
| 20 | - | Terminal 31 - sender earth - output |
| 21 | - | not assigned |
| 22 | - | not assigned |
| 23 | - | not assigned |
| 24 | - | not assigned |
| 25 | - | Handbrake warning switch -F9- |
| 26 | - | Brake fluid level warning contact -F34- |
| 27 | - | Oil pressure switch -F1- |
| | - | Oil pressure switch for reduced oil pressure -F378- |
| 28 | - | CAN H, Control unit in dash panel insert -J285- |
| 29 | - | CAN L, Control unit in dash panel insert -J285- |
| 30 | - | not assigned |
| 31 | - | Terminal 15 - Input |
| 32 | - | Terminal 30 - Input |
| 1 | - | Fuel pump control unit -J538- |
| 2 | - | Fuel pump control unit -J538- |
| 3 | - | Fuel level sender 2 -G169- (only for vehicles with four-wheel drive) |
| 4 | - | Fuel level sender 2 -G169- (only for vehicles with four-wheel drive) |
| 5 | - | not assigned |
| 6 | - | not assigned |
| 7 | - | Immobilizer reading coil -D2- |
| 8 | - | Immobilizer reading coil -D2- |
| 9 | - | Speed signal - Ouput |
| 10 | - | not assigned |
| 11 | - | Oil level and oil temperature sender -G266- |
| 12 | - | not assigned |
| 13 | - | not assigned |
| 14 | - | not assigned |
| 15 | - | not assigned |
| 16 | - | Terminal 31 - Input |
| 17 | - | Windscreen washer fluid level sender -G33- |
| 18 | - | Coolant shortage indicator sender -G32- |
| 19 | - | Ambient temperature sensor -G17- |
| 20 | - | Terminal 31 - sender earth - output |
| 21 | - | not assigned |
| 22 | - | not assigned |
| 23 | - | not assigned |
| 24 | - | not assigned |
| 25 | - | Handbrake warning switch -F9- |
| 26 | - | Brake fluid level warning contact -F34- |
| 27 | - | Oil pressure switch -F1- |
| | - | Oil pressure switch for reduced oil pressure -F378- |
| 28 | - | CAN H, Control unit in dash panel insert -J285- |
| 29 | - | CAN L, Control unit in dash panel insert -J285- |
| 30 | - | not assigned |
| 31 | - | Terminal 15 - Input |
| 32 | - | Terminal 30 - Input |
| 1 | - | Input - terminal 30 - for central locking |
| 2 | - | Output for rear window wiper motor -V12- and windscreen and rear window washer pump -V59- |
| 3 | - | not assigned |
| 4 | - | not assigned |
| 5 | - | Output for tank filler flap locking motor -V155- |
| 6 | - | not assigned |
| 7 | - | Output for central locking motor in rear left door, lock -V214- |
| 8 | - | Output for central locking lock unit, rear right -F223- |
| 9 | - | not assigned |
| 10 | - | not assigned |
| 11 | - | Output for central locking motor in rear lid -V53- |
| 12 | - | Output for terminal 15 voltage supply relay -J329- |
| 13 | - | not assigned |
| 14 | - | Output for heated rear window warning lamp -K10- (only on vehicles with heating) |
| 15 | - | Output for switch and instrument lighting rheostat -E20- terminal 58 |
| 16 | - | not assigned |
| 17 | - | not assigned |
| 18 | - | Output for front passenger side airbag warning light, off -K145- terminal 31 |
| 19 | - | not assigned |
| 20 | - | not assigned |
| 21 | - | Output for heated front seat control unit -J774- |
| 22 | - | Output for heated rear window relay -J9- |
| 23 | - | not assigned |
| 24 | - | Output for hazard warning light system warning light -K6- |
| 25 | - | not assigned |
| 26 | - | Output for motor for SAFE function of central locking in rear left door -V163- |
| 27 | - | Output for motor for SAFE function of central locking in rear right door -V164- |
| 28 | - | Output for X contact relief relay -J59- |
| 29 | - | Output for voltage supply relay, terminal 50 -J682- |
| 30 | - | Output for switch and instrument lighting rheostat -E20- terminal 31 |
| 31 | - | not assigned |
| 32 | - | not assigned |
| 33 | - | LIN bus - Windscreen wiper motor driver's side -V216- , Rain and light detector sensor -G397- |
| 34 | - | not assigned |
| 35 | - | not assigned |
| 36 | - | LIN bus - Alarm horn -H12- , Vehicle inclination sender -G384- , Interior monitoring sensor -G273- |
| 37 | - | Output for deactivation warning light of interior monitoring and vehicle inclination -K248- |
| 38 | - | Output for fuel pump control unit -J538- (for petrol engines) |
| | - | Output for fuel pump relay for additional heater -J749- (for diesel engines) |
| 39 | - | not assigned |
| 40 | - | Output for headlight washer system relay -J39- |
| 41 | - | Output for dual tone horn relay -J4- |
| 42 | - | Input for interior light - terminal 30 |
| 43 | - | Output for interior light - terminal 30g |
| 44 | - | not assigned |
| 45 | - | not assigned |
| 46 | - | not assigned |
| 47 | - | not assigned |
| 48 | - | not assigned |
| 49 | - | Input - terminal 31 |
| 50 | - | Output for rear fog light bulb, left -L46- |
| 51 | - | Output - terminal 58d |
| 52 | - | not assigned |
| 1 | - | Input - terminal 30 - for central locking |
| 2 | - | Output for rear window wiper motor -V12- and windscreen and rear window washer pump -V59- |
| 3 | - | not assigned |
| 4 | - | not assigned |
| 5 | - | Output for tank filler flap locking motor -V155- |
| 6 | - | not assigned |
| 7 | - | Output for central locking motor in rear left door, lock -V214- |
| 8 | - | Output for central locking lock unit, rear right -F223- |
| 9 | - | not assigned |
| 10 | - | not assigned |
| 11 | - | Output for central locking motor in rear lid -V53- |
| 12 | - | Output for terminal 15 voltage supply relay -J329- |
| 13 | - | not assigned |
| 14 | - | Output for heated rear window warning lamp -K10- (only on vehicles with heating) |
| 15 | - | Output for switch and instrument lighting rheostat -E20- terminal 58 |
| 16 | - | not assigned |
| 17 | - | not assigned |
| 18 | - | Output for front passenger side airbag warning light, off -K145- terminal 31 |
| 19 | - | not assigned |
| 20 | - | not assigned |
| 21 | - | Output for heated front seat control unit -J774- |
| 22 | - | Output for heated rear window relay -J9- |
| 23 | - | Output for heated windscreen relay -J47- |
| 24 | - | Output for hazard warning light system warning light -K6- |
| 25 | - | not assigned |
| 26 | - | Output for motor for SAFE function of central locking in rear left door -V163- |
| 27 | - | Output for motor for SAFE function of central locking in rear right door -V164- |
| 28 | - | Output for X contact relief relay -J59- |
| 29 | - | Output for voltage supply relay, terminal 50 -J682- |
| 30 | - | Output for switch and instrument lighting rheostat -E20- terminal 31 |
| 31 | - | not assigned |
| 32 | - | not assigned |
| 33 | - | LIN bus - Windscreen wiper motor driver's side -V216- , Rain and light detector sensor -G397- |
| 34 | - | not assigned |
| 35 | - | not assigned |
| 36 | - | LIN bus - Alarm horn -H12- , Vehicle inclination sender -G384- , Interior monitoring sensor -G273- |
| 37 | - | Output for deactivation warning light of interior monitoring and vehicle inclination -K248- |
| 38 | - | Output for fuel pump control unit -J538- (for petrol engines) |
| | - | Output for fuel pump relay for additional heater -J749- (for diesel engines) |
| 39 | - | not assigned |
| 40 | - | Output for headlight washer system relay -J39- |
| 41 | - | Output for dual tone horn relay -J4- |
| 42 | - | Input for interior light - terminal 30 |
| 43 | - | Output for interior light - terminal 30g |
| 44 | - | not assigned |
| 45 | - | not assigned |
| 46 | - | not assigned |
| 47 | - | not assigned |
| 48 | - | not assigned |
| 49 | - | not assigned |
| 50 | - | Output for rear fog light bulb, left -L46- |
| 51 | - | Output - terminal 58d |
| 52 | - | Input - terminal 31 |
| 1 | - | Input - terminal 30 - for central locking |
| 2 | - | Output for rear window wiper motor -V12- and windscreen and rear window washer pump -V59- |
| 3 | - | not assigned |
| 4 | - | not assigned |
| 5 | - | Output for tank filler flap locking motor -V155- |
| 6 | - | not assigned |
| 7 | - | Output for central locking motor in rear left door, lock -V214- |
| 8 | - | Output for central locking lock unit, rear right -F223- |
| 9 | - | not assigned |
| 10 | - | not assigned |
| 11 | - | Output for central locking motor in rear lid -V53- |
| 12 | - | Output for terminal 15 voltage supply relay -J329- |
| 13 | - | not assigned |
| 14 | - | Output for heated rear window warning lamp -K10- (only on vehicles with heating) |
| 15 | - | Output for switch and instrument lighting rheostat -E20- terminal 58 |
| 16 | - | not assigned |
| 17 | - | not assigned |
| 18 | - | Output for front passenger side airbag warning light, off -K145- terminal 31 |
| 19 | - | not assigned |
| 20 | - | not assigned |
| 21 | - | Output for heated front seat control unit -J774- |
| 22 | - | Output for heated rear window relay -J9- |
| 23 | - | Output for heated windscreen relay -J47- |
| 24 | - | Output for hazard warning light system warning light -K6- |
| 25 | - | not assigned |
| 26 | - | Output for motor for SAFE function of central locking in rear left door -V163- |
| 27 | - | Output for motor for SAFE function of central locking in rear right door -V164- |
| 28 | - | Output for X contact relief relay -J59- |
| 29 | - | Output for voltage supply relay, terminal 50 -J682- (without start/stop system) |
| 30 | - | Output for switch and instrument lighting rheostat -E20- terminal 31 |
| 31 | - | not assigned |
| 32 | - | not assigned |
| 33 | - | LIN bus - Windscreen wiper motor driver's side -V216- , Rain and light detector sensor -G397- |
| 34 | - | not assigned |
| 35 | - | not assigned |
| 36 | - | LIN bus - Alarm horn -H12- , Vehicle inclination sender -G384- , Interior monitoring sensor -G273- |
| 37 | - | Output for deactivation warning light of interior monitoring and vehicle inclination -K248- |
| 38 | - | Output for fuel pump control unit -J538- (for petrol engines) |
| | - | Output for fuel pump relay for additional heater -J749- (for diesel engines) |
| 39 | - | not assigned |
| 40 | - | Output for headlight washer system relay -J39- |
| 41 | - | Output for dual tone horn relay -J4- |
| 42 | - | Input for interior light - terminal 30 |
| 43 | - | Output for interior light - terminal 30g |
| 44 | - | not assigned |
| 45 | - | not assigned |
| 46 | - | not assigned |
| 47 | - | not assigned |
| 48 | - | not assigned |
| 49 | - | not assigned |
| 50 | - | Output for rear fog light bulb, left -L46- (only for vehicles with left-hand drive) |
| | - | Output for rear fog light bulb, right -L47- (only for vehicles with right-hand drive) |
| 51 | - | Output - terminal 58d |
| 52 | - | Input - terminal 31 |
| 1 | - | Input - terminal 30 - for central locking |
| 2 | - | Output for rear window wiper motor -V12- and windscreen and rear window washer pump -V59- |
| 3 | - | not assigned |
| 4 | - | not assigned |
| 5 | - | Output for tank filler flap locking motor -V155- |
| 6 | - | not assigned |
| 7 | - | Output for central locking motor in rear left door, lock -V214- |
| 8 | - | Output for central locking lock unit, rear right -F223- |
| 9 | - | not assigned |
| 10 | - | not assigned |
| 11 | - | Output for central locking motor in rear lid -V53- |
| 12 | - | Output for terminal 15 voltage supply relay -J329- |
| 13 | - | not assigned |
| 14 | - | Output for heated rear window warning lamp -K10- (only on vehicles with heating) |
| 15 | - | Output for switch and instrument lighting rheostat -E20- terminal 58 |
| 16 | - | not assigned |
| 17 | - | not assigned |
| 18 | - | Output for front passenger side airbag warning light, off -K145- terminal 31 |
| 19 | - | not assigned |
| 20 | - | not assigned |
| 21 | - | Output for heated front seat control unit -J774- |
| 22 | - | Output for heated rear window relay -J9- |
| 23 | - | Output for heated windscreen relay -J47- |
| 24 | - | Output for hazard warning light system warning light -K6- |
| 25 | - | not assigned |
| 26 | - | Output for motor for SAFE function of central locking in rear left door -V163- |
| 27 | - | Output for motor for SAFE function of central locking in rear right door -V164- |
| 28 | - | Output for X contact relief relay -J59- |
| 29 | - | Output for voltage supply relay, terminal 50 -J682- (without start/stop system) |
| 30 | - | Output for switch and instrument lighting rheostat -E20- terminal 31 |
| 31 | - | not assigned |
| 32 | - | not assigned |
| 33 | - | LIN bus - Windscreen wiper motor driver's side -V216- , Rain and light detector sensor -G397- |
| 34 | - | not assigned |
| 35 | - | not assigned |
| 36 | - | LIN bus - Alarm horn -H12- , Vehicle inclination sender -G384- , Interior monitoring sensor -G273- |
| 37 | - | Output for deactivation warning light of interior monitoring and vehicle inclination -K248- |
| 38 | - | Output for fuel pump control unit -J538- (for petrol engines) |
| | - | Output for fuel pump relay for additional heater -J749- (for diesel engines) |
| 39 | - | not assigned |
| 40 | - | Output for headlight washer system relay -J39- |
| 41 | - | Output for dual tone horn relay -J4- |
| 42 | - | Input for interior light - terminal 30 |
| 43 | - | Output for interior light - terminal 30g |
| 44 | - | not assigned |
| 45 | - | not assigned |
| 46 | - | not assigned |
| 47 | - | not assigned |
| 48 | - | not assigned |
| 49 | - | not assigned |
| 50 | - | Output for rear fog light bulb, left -L46- (only for vehicles with left-hand drive) |
| | - | Output for rear fog light bulb, right -L47- (only for vehicles with right-hand drive) |
| 51 | - | Output - terminal 58d |
| 52 | - | Input - terminal 31 |
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