Slot | Current flow diagram designation | Nominal value | Function/component | Terminal |
SC1 | Fuse 1 on fuse holder C -SC1- | 30 A | Control unit for reducing-agent heater -J891- | 30 |
SC2 | Fuse 2 on fuse holder C -SC2- | 10 A | Steering column electronics control unit -J527-6) | 30 |
SC3 | not assigned | - | | - |
SC4 | Fuse 4 on fuse holder C -SC4- | 10 A | Onboard supply control unit -J519- t | Anti-theft alarm system | | 30 |
SC5 | Fuse 5 on fuse holder C -SC5- | 5 A | Data bus diagnostic interface -J533- | 30 |
SC6 | Fuse 6 on fuse holder C -SC6- | 5 A | Selector lever -E313- | 30 |
SC7 | Fuse 7 on fuse holder C -SC7- | 10 A | Heater and air conditioning controls -EX21- | 30 |
| | | Heater control unit -J65- | |
| | | Climatronic control unit -J255- | |
| | | Air conditioning system control unit -J301- | |
| | | Remote control receiver for auxiliary coolant heater -R149- | |
| | | Heated rear window relay -J9- | |
| | | Tyre Pressure Monitoring System control unit -J502- | |
SC8 | Fuse 8 on fuse holder C -SC8- | 10 A | Rotary light switch -EX1- | 30 |
| | | Electromechanical parking brake button -E538- | |
| | | Rain and light sensor -G397- | |
| | | Diagnostic connection -U31- | |
| | | Anti-theft alarm sensor -G578- | |
SC9 | Fuse 9 on fuse holder C -SC9- | 5 A | Steering column electronics control unit -J527- | 30 |
SC10 | Fuse 10 on fuse holder C -SC10- | 7.5 A | Display unit for front information display and operating unit control unit -J685- | 30 |
| | | TV tuner -RX6- | |
SC11 | Fuse 11 on fuse holder C -SC11- | 25 A | Control unit for front left belt tensioner -J854- | 30 |
SC12 | Fuse 12 on fuse holder C -SC12- | 20 A | Control unit 1 for information electronics -J794- | 30 |
SC13 | Fuse 13 on fuse holder C -SC13- | 15 A | Electronically controlled damping control unit -J250- | 30 |
SC14 | Fuse 14 on fuse holder C -SC14- | 30 A | Fresh air blower control unit -J126- | 30 |
SC15 | Fuse 15 on fuse holder C -SC15- | 10 A | Control unit for electronic steering column lock -J764- | 30 |
SC16 | Fuse 16 on fuse holder C -SC16- | 7.5 A | Control unit 1 for information electronics -J794- | 30 |
| | | Two-way signal amplifier for mobile telephone/data services -J984- | |
| | | Storage compartment with interface for mobile telephone -R265- | |
| | | Chip card reader -D8- | |
| | | USB hub -R293- | |
SC17 | Fuse 17 on fuse holder C -SC17- | 5 A | Dash panel insert -KX2- | 30 |
| | | Control unit in dash panel insert -J285- | |
SC18 | Fuse 18 on fuse holder C -SC18- | 7.5 A | Reversing camera -R189- | 30 |
SC19 | Fuse 19 on fuse holder C -SC19- | 7.5 A | Interface for entry and start system -J965- | 30 |
SC20 | Fuse 20 on fuse holder C -SC20- | 7.5 A | Relay for reducing agent metering system -J963- | 30 |
| | | Delivery unit for reducing agent metering system -GX19- | |
SC21 | not assigned | - | | - |
SC22 | Fuse 22 on fuse holder C -SC22- | 15 A | Trailer detector control unit -J345- | 30 |
SC23 | Fuse 23 on fuse holder C -SC23- | 40 A | Onboard supply control unit -J519- t | Front right headlight -MX2- | | 30 |
SC24 | Fuse 24 on fuse holder C -SC24- | 30 A | Sliding sunroof adjustment control unit -J245- | 30 |
| | | Sunroof roller blind control unit -J394- | |
SC25 | Fuse 25 on fuse holder C -SC25- | 30 A | Driver door control unit -J386- 1) | 30 |
| | | Rear left window regulator motor -V26- 1) | 30 |
| | | Front passenger door control unit -J387-2) | |
| | | Rear right window regulator motor -V27- 2) | |
SC26 | Fuse 26 on fuse holder C -SC26- | 30 A | Onboard supply control unit -J519- | 30 |
SC27 | not assigned | - | | - |
SC28 | Fuse 28 on fuse holder C -SC28- | 25 A | Trailer detector control unit -J345- | 30 |
SC29 | not assigned | - | | - |
SC30 | not assigned | - | | - |
SC31 | Fuse 31 on fuse holder C -SC31- | 40 A | Onboard supply control unit -J519- | 30 |
SC32 | Fuse 32 on fuse holder C -SC32- | 7.5 A | Front camera for driver assist systems -R242- | 15 |
| | 10 A8) | Adaptive cruise control unit -J428- | |
| | | Parking aid control unit -J446- | |
| | | Park assist steering control unit -J791- | |
| | | Blind Spot Monitor control unit -J1086- | |
| | | Blind Spot Monitor control unit 2 -J1087- | |
SC33 | Fuse 33 on fuse holder C -SC33- | 5 A | Airbag control unit -J234- | 15 |
| | | Front passenger airbag deactivated warning lamp -K145- | |
SC34 | Fuse 34 on fuse holder C -SC34- | 7.5 A | Rotary light switch -EX1- | 15 |
| | | Interior mirror -EX5- | |
| | | Relay for power sockets -J807- | |
| | | Reversing light switch -F4- | |
| | | Pressure sender for refrigerant circuit -G805- | |
| | | Air quality sensor -G238- | |
| | | Electromechanical parking brake button -E538- | |
| | | Auxiliary air heater element -Z35- | |
SC35 | Fuse 35 on fuse holder C -SC35- | 10 A | Diagnostic connection -U31- | 15 |
| | | Headlight range control and instrument illumination regulator -EX14- | |
| | | Control unit for cornering light and headlight range control -J745- | |
| | | Left headlight range control motor -V48- | |
| | | Right headlight range control motor -V49- | |
| | | Front left headlight -MX1- | |
| | | Front right headlight -MX2- | |
SC36 | Fuse 36 on fuse holder C -SC36- | 10 A 5 A9) | Front right headlight -MX2- | 15 |
| | | Control unit for right daytime running light and side light -J861- | |
SC37 | Fuse 37 on fuse holder C -SC37- | 10 A 5 A9) | Front left headlight -MX1- | 15 |
| | | Control unit for left daytime running light and side light -J860- | |
SC38 | Fuse 38 on fuse holder C -SC38- | 25 A | Trailer detector control unit -J345- | 30 |
SC39 | Fuse 39 on fuse holder C -SC39- | 30 A | Front passenger door control unit -J387-1) | 30 |
| | | Rear right window regulator motor -V27- 1) | |
| | | Driver door control unit -J386- 2) | |
| | | Rear left window regulator motor -V26- 2) | |
SC404), 5) | Fuse 40 on fuse holder C -SC40- | 20 A | Cigarette lighter -U1- 3) | 154) / 305) |
| | | 12 V socket -U5- | |
| | | 12 V socket 2 -U18- | |
| | | 12 V socket 3 -U19- | |
SC41 | Fuse 41 on fuse holder C -SC41- | 25 A | Control unit for front right belt tensioner -J855- | 30 |
SC42 | Fuse 42 on fuse holder C -SC42- | 40 A | Onboard supply control unit -J519- | 30 |
SC43 | Fuse 43 on fuse holder C -SC43- | 30 A | Onboard supply control unit -J519- | 30 |
SC44 | Fuse 44 on fuse holder C -SC44- | 15 A | Trailer detector control unit -J345- | 30 |
SC45 | Fuse 45 on fuse holder C -SC45- | 15 A | Driver seat lumbar support adjustment switch -E176- | 30 |
| | | Massage control unit -J740- | |
SC46 | Fuse 46 on fuse holder C -SC46- | 30 A | DC/AC converter with socket, 12 V - 230 V -U13- | 30 |
SC47 | Fuse 47 on fuse holder C -SC47- | 15 A | Rear window wiper motor -V12- | 15 |
SC48 | not assigned | - | | - |
SC49 | Fuse 49 on fuse holder C -SC49- | 5 A | Clutch position sender -G476- | 15 |
| | | Starter relay 1 -J906- | |
| | | Starter relay 2 -J907- | |
SC50 | Fuse 50 on fuse holder C -SC50- | 40 A | Rear lid control unit -J605- | 30 |
SC51 | Fuse 51 on fuse holder C -SC51- | 25 A | Operating and display unit for rear air conditioning system -E265- | 30 |
SC52 | not assigned | - | | - |
SC53 | Fuse 53 on fuse holder C -SC53- | 30 A | Heated rear window relay -J9- | 15 |
Slot | Current flow diagram designation | Nominal value | Function/component | Terminal |
SB1 | Fuse 1 on fuse holder B -SB1- | 40 A | ABS control unit -J104- | 30 |
SB2 | Fuse 2 on fuse holder B -SB2- | 40 A | ABS control unit -J104- | 30 |
| | | ABS hydraulic pump -V64- | |
SB3 | Fuse 3 on fuse holder B -SB3- | 15 A 1) 30 A 2) | Engine control unit -J623- | 87 |
SB4 | Fuse 4 on fuse holder B -SB4- | 5 A 2) | Oil level and oil temperature sender -G266- | 87 |
| | 10 A 1) | Radiator fan control unit -J293- | |
| | | Relay for reducing agent metering system -J963-2) | |
| | | Activated charcoal filter solenoid valve 1 -N80-1) | |
| | | | |
| | | Camshaft control valve 1 -N205-1) | |
| | | Exhaust camshaft control valve 1 -N318-1) | |
| | | Valve for oil pressure control -N428-1) | |
| | | Coolant valve for cylinder head -N489- | |
| | | High heat output relay -J360-2) | |
| | | Exhaust gas recirculation cooler changeover valve -N345-2) | |
| | | Low heat output relay -J359-2) | |
| | | Charge pressure control solenoid valve -N75-2) | |
SB5 | Fuse 5 on fuse holder B -SB5- | 10 A | Fuel pressure regulating valve -N276-2) | 87 |
| | | Fuel metering valve -N290-2) | |
| | | Camshaft control valve 1 -N205-2) | |
SB6 | Fuse 6 on fuse holder B -SB6- | 5 A | Brake light switch -F- | 87 |
SB7 | Fuse 7 on fuse holder B -SB7- | 10 A | Fuel pressure regulating valve -N276-1) | 87 |
| | | Charge air cooling pump -V188-1) | |
| | | Valve for oil pressure control -N428-2) | |
| | | Coolant valve for cylinder head -N489-2) | |
| | | Auxiliary pump for heating -V488-2) | |
| | | Radiator blind control motor -V544-4) | |
SB8 | Fuse 8 on fuse holder B -SB8- | 10 A 1) 15 A 2) | Lambda probe 1 before catalytic converter -GX10- t | Lambda probe heater -Z19- | | 87 |
| | | Lambda probe 1 after catalytic converter -GX7- t | Lambda probe 1 heater after catalytic converter -Z29- | | |
| | | NOx sender -G295-2) | |
SB9 | Fuse 9 on fuse holder B -SB9- | 5 A 2) | Ignition coil 1 with output stage -N70-1) | 87 |
| | 20 A 1) | Ignition coil 2 with output stage -N127-1) | |
| | | Ignition coil 3 with output stage -N291-1) | |
| | | Ignition coil 4 with output stage -N292-1) | |
| | | Air mass meter -G70-2) | |
| | | Automatic glow period control unit -J179-2) | |
| | | Heater element for crankcase breather -N79-2) | |
SB10 | Fuse 10 on fuse holder B -SB10- | 15 A 1) 20 A 2) | Fuel pump control unit -J538- t | Fuel system pressurisation pump -G6- | | 87 |
SB11 | Fuse 11 on fuse holder B -SB11- | 40 A | Auxiliary air heater element -Z35-2) | 87 |
SB12 | Fuse 12 on fuse holder B -SB12- | 40 A | Auxiliary air heater element -Z35-2) | 87 |
SB13 | Fuse 13 on fuse holder B -SB13- | 30 A | Mechatronic unit for dual clutch gearbox -J743- t | Dual clutch gearbox 0CW | | 30 |
| | 15 A | Mechatronic unit for dual clutch gearbox -J743- t | Dual clutch gearbox 0D9 | | |
SB14 | Fuse 14 on fuse holder B -SB14- | 30 A | Heated windscreen relay -J47- | 30 |
SB15 | Fuse 15 on fuse holder B -SB15- | 15 A | Horn relay -J413- | 30 |
SB16 | not assigned | - | | - |
SB17 | Fuse 17 on fuse holder B -SB17- | 7.5 A | Main relay -J271- 1) | 30 |
| | | Terminal 30 voltage supply relay -J317- 2) | |
| | | Engine control unit -J623- | |
| | | ABS control unit -J104- | |
| | | Heated windscreen relay -J47- | |
SB18 | Fuse 18 on fuse holder B -SB18- | 5 A | Battery monitor control unit -J367- | 30 |
| | | Data bus diagnostic interface -J533- 3) | |
SB19 | Fuse 19 on fuse holder B -SB19- | 30 A | Wiper motor control unit -J400- | 30 |
SB20 | Fuse 20 on fuse holder B -SB20- | 10 A | Alarm horn -H12- | 30 |
SB21 | Fuse 21 on fuse holder B -SB21- | 30A | Heated windscreen relay 2 -J611- | 30 |
SB22 | Fuse 22 on fuse holder B -SB22- | 5 A | Engine control unit -J623- | 50 |
SB23 | Fuse 23 on fuse holder B -SB23- | 30 A | Starter -B- | 50 |
SB24 | Fuse 24 on fuse holder B -SB24- | 40 A | Auxiliary air heater element -Z35-2) | 87 |
SB25 | not assigned | - | | - |
SB26 | not assigned | - | | - |
SB27 | not assigned | - | | - |
SB28 | not assigned | - | | - |
SB29 | not assigned | - | | - |
SB30 | not assigned | - | | - |
SB31 | Fuse 31 on fuse holder B -SB31- | 15 A | Vacuum pump for brakes -V192-4) | 87 |
SB32 | not assigned | - | | - |
SB33 | not assigned | - | | - |
SB34 | not assigned | - | | - |
SB35 | not assigned | - | | - |
SB36 | not assigned | - | | - |
SB37 | Fuse 37 on fuse holder B -SB37- | 20 A | Auxiliary heater control unit -J364- | 30 |
SB38 | not assigned | - | | - |