| No. | | Current Flow Diagram designation | Nominal value | | Function/component | Terminal |
| F1 | - | Fuse 1 on fuse holder B -SB1- | 40 A | - | Voltage stabiliser -J532-
Supply for the fuses:
-SC7- up to -SC11-
only models with stop/start system
applicable from May 2009 | 30 |
| F1 | - | Fuse 1 on fuse holder B -SB1- | 40 A | - | Supply for the fuses:
-SC7- up to -SC10-
only models without stop/start system
applicable from May 2009 | 30 |
| F2 | - | Fuse 2 on fuse holder B -SB2- | 30 A | - | Mechatronic unit for dual clutch gearbox -J743-
(7-speed dual clutch gearbox 0AM) | 30 |
| F3 | - | Fuse 3 on fuse holder B -SB3- | 5 A | - | Onboard supply control unit -J519- | 30 |
| F3 | - | Fuse 3 on fuse holder B -SB3- | 5 A | - | Battery monitor control unit -J367-
applicable from May 2009 | 30 |
| F4 | - | Fuse 4 on fuse holder B -SB4- | 20 A | - | ABS control unit -J104- (MK60 valves) | 30 |
| F4 | - | Fuse 4 on fuse holder B -SB4- | 30 A | - | ABS control unit -J104- (MK70 valves)
is dropped from May 2008 | 30 |
| F5 | - | Fuse 5 on fuse holder B -SB5- | 15 A | - | Mechatronic unit for dual clutch gearbox -J743- | 30 |
| F6 | - | Fuse 6 on fuse holder B -SB6- | 5 A | - | Control unit in dash panel insert -J285-
is dropped from May 2009 | 30 |
| F6 | - | Fuse 6 on fuse holder B -SB6- | 5 A | - | Steering column electronics control unit -J527- | 30 |
| F7 | - | Not assigned | - | - | | 30 |
| F8 | - | Fuse 8 on fuse holder B -SB8- | 15 A | - | Navigation operating electronics control unit -J402- (RNS-E)
Control unit with display for radio and navigation system -J503- (RNS low)
Radio -R-
is dropped from May 2009 | 30 |
| F8 | - | Fuse 8 on fuse holder B -SB8- | 25 A | - | Control unit with display for radio and navigation -J503- (for Japan only)
is dropped from May 2009 | 30 |
| F9 | - | Fuse 9 on fuse holder B -SB9- | 5 A | - | Navigation system with CD drive control unit -J401-
Telephone transmitter and receiver unit -R36-
Aerial amplifier for mobile telephone -R86-
18-pin connector -T18a- (VDA interface)
is dropped from May 2009 | 30 |
| F10 | - | Fuse 10 on fuse holder B -SB10- | 5 A | - | Motronic current supply relay -J271- (CBZB, CAXC) | 30 |
| F10 | - | Fuse 10 on fuse holder B -SB10- | 5 A | - | Engine control units -J...- (CBAB, CBAA, CAYC, CFFA, CFFB, CBZB, CAXC)
Terminal 30 voltage supply relay -J317- (BLS, CBAB, CBAA, CAYC, CFFA, CFFB) | 30 |
| F10 | - | Fuse 10 on fuse holder B -SB10- | 10 A | - | Engine control units -J...- (BZB, CAWB, CDAA, CCZA)
Motronic current supply relay -J271- (BZB, CAWB, CDAA, CCZA) | 30 |
| F11 | - | Fuse 11 on fuse holder B -SB11- | 20 A | - | Auxiliary heater control unit -J364- | 30 |
| F12 | - | Fuse 12 on fuse holder B -SB12- | 5 A | - | Data bus diagnostic interface -J533- | 30 |
| F13 | - | Fuse 13 on fuse holder B -SB13- | 30 A | - | Engine control units -J...- (BLS, CBAB, CBAA, CAYC, CFFA, CFFB) | 87 |
| | | | 15 A | | Engine control units -J...- (BZB, CAWB, BSE, CDAA, CCZA, CBZB, CAXC) | |
| F14 | - | Fuse 14 on fuse holder B -SB14- | 20 A | - | Ignition coil 1 with output stage -N70-
Ignition coil 2 with output stage -N127-
Ignition coil 3 with output stage -N291-
Ignition coil 4 with output stage -N292-
for models with engine codes BZB, CAWB, CDAA, CCZA, CAXC only | 87 |
| F14 | - | Fuse 14 on fuse holder B -SB14- | 20 A | - | Ignition coil 1 with output stage -N-
Output stage -N122-
Ignition coil 2 -N128-
for models with engine codes BSE, CBZB only | 87 |
| F14 | - | Fuse 14 on fuse holder B -SB14- | 20 A | - | Fuel pressure regulating valve -N276-
Fuel metering valve -N290-
for models with engine codes CBAB, CBAA, CAYC, CFFA, CFFB only
is dropped from May 2011 | 87 |
| F14 | - | Fuse 14 on fuse holder B -SB14- | 15 A | - | Fuel pressure regulating valve -N276-
Fuel metering valve -N290-
for models with engine codes CBAB, CBAA, CAYC, CFFA, CFFB only
applicable from May 2011 | 87 |
| F15 | - | Fuse 15 on fuse holder B -SB15- | 5 A | - | Fuel pump relay -J17-
Automatic glow period control unit -J179-
for models with engine codes BLS, CBAB, CBAA, CAYC, CFFA, CFFB only | 87 |
| F15 | - | Fuse 15 on fuse holder B -SB15- | 5 A | - | Low heat output relay -J359-
High heat output relay -J360-
for models with engine codes BLS, CBAB, CBAA, CAYC, CFFA, CFFB only
for models with auxiliary air heating only | 87 |
| F15 | - | Fuse 15 on fuse holder B -SB15- | 5 A | - | Supplementary fuel pump relay -J832-
for models with engine codes CBAB, CBAA, CFFA, CFFB only | 87 |
| F15 | - | Fuse 15 on fuse holder B -SB15- | 10 A | - | Lambda probe heater -Z19- (CBZB, CAXC)
Lambda probe 1 heater after catalytic converter -Z29- (CBZB, CAXC) | 87 |
| F16 | - | Fuse 16 on fuse holder B -SB16- | 30 A | - | Onboard supply control unit -J519-
Right side light supply, right main beam, right dipped beam, right turn signal, right fog light | 30 |
| F17 | - | Fuse 17 on fuse holder B -SB17- | 15 A | - | High tone horn -H2-
Low tone horn -H7- | 30 |
| F18 | - | Fuse 18 on fuse holder B -SB18- | 30 A | - | Amplifier -R12- | 30 |
| F18 | - | Fuse 18 on fuse holder B -SB18- | 30 A | - | Voltage stabiliser -J532-
Amplifier -R12-
only models with stop/start system
applicable from May 2009 | 30 |
| F19 | - | Fuse 19 on fuse holder B -SB19- | 30 A | - | Wiper motor control unit -J400- | 30 |
| F20 | - | Fuse 20 on fuse holder B -SB20- | 10 A | - | Coolant circulation pump -V50- (CBZB, CAXC) | 87 |
| F20 | - | Fuse 20 on fuse holder B -SB20- | 20 A | - | Fuel pressure regulating valve -N276- (BZB, CAWB, CDAA, CCZA)
is dropped from May 2011 | 87 |
| F20 | - | Fuse 20 on fuse holder B -SB20- | 15 A | - | Fuel pressure regulating valve -N276- (BZB, CAWB, CDAA, CCZA)
applicable from May 2011 | 87 |
| F21 | - | Fuse 21 on fuse holder B -SB21- | 10 A | - | Lambda probe heater -Z19- (BLS, BZB, CAWB, CBAB, CBAA, CAYC, CFFA, CFFB) | 87 |
| F21 | - | Fuse 21 on fuse holder B -SB21- | 20 A | - | Vacuum pump relay -J57- (CAXC)
Vacuum pump for brakes -V192- (CAXC) | 87 |
| F21 | - | Fuse 21 on fuse holder B -SB21- | 10 A | - | Lambda probe heater -Z19- (BSE, CDAA, CCZA)
Lambda probe 1 heater after catalytic converter -Z29- (BSE, CDAA, CCZA)
is dropped from May 2009 | 87 |
| F21 | - | Fuse 21 on fuse holder B -SB21- | 15 A | - | Lambda probe heater -Z19- (BSE, CDAA, CCZA)
Lambda probe 1 heater after catalytic converter -Z29- (BSE, CDAA, CCZA)
applicable from May 2009 | 87 |
| F22 | - | Fuse 22 on fuse holder B -SB22- | 5 A | - | Clutch position sender -G476- | 87 |
| F22 | - | Fuse 22 on fuse holder B -SB22- | 5 A | - | Brake light switch -F-
Brake pedal switch -F63-
applicable from May 2009 | 87 |
| F23 | - | Fuse 23 on fuse holder B -SB23- | 5 A | - | Continued coolant circulation relay -J151- (BZB, CAWB, CDAA, CCZA)
Secondary air pump relay -J299- (BSE)
Continued coolant circulation pump -V51- (BZB, CAWB, CDAA, CCZA) | 87 |
| | | | 10 A | | Charge pressure control solenoid valve -N75- (BLS, CBAB, CBAA, CAYC, CFFA, CFFB)
Exhaust gas recirculation cooler change-over valve -N345- (BLS, CBAB, CBAA, CAYC, CFFA, CFFB)
Air mass meter -G70- (CFFA, CFFB) | |
| F23 | | Fuse 23 on fuse holder B -SB23- | 15 A | | Fuel pressure regulating valve -N276- (CBZB, CAXC) | |
| F24 | - | Fuse 24 on fuse holder B -SB24- | 10 A | - | Radiator fan control unit -J293-
Additional coolant pump relay -J496- (CAXC)
Engine component current supply relay -J757- (BZB, CAWB, CDAA, CCZA)
Charge pressure control solenoid valve -N75- (CAWB, BZB, CDAA, CCZA, CAXC)
Activated charcoal filter system solenoid valve 1 -N80- (CAWB, BZB, BSE, CDAA, CCZA, CBZB, CAXC)
Variable intake manifold change-over valve -N156- (BSE)
Inlet camshaft control valve 1 -N205- (CAWB, BZB, CDAA, CCZA, CAXC)
Turbocharger air recirculation valve -N249- (CAWB, BZB, CDAA, CCZA, CAXC)
Intake manifold flap valve -N316- (CAWB, BZB, CDAA, CCZA, CBZB)
Oil pressure control valve -N428- (CDAA, CCZA)
Pump for exhaust gas recirculation cooler -V400- (CBAB, CBAA, CAYC, CFFA, CFFB) | 87 |
| F25 | - | Fuse 25 on fuse holder B -SB25- | 30 A | - | ABS control unit -J104- (MK70 ABS Pumpe)
is dropped from May 2008 | 30 |
| F25 | - | Fuse 25 on fuse holder B -SB25- | 40 A | - | ABS control unit -J104- (MK70 ABS pump and ABS valves)
applicable from May 2008 | 30 |
| F25 | | Fuse 25 on fuse holder B -SB25- | 40 A | | ABS control unit -J104- (MK60 ESP pump) | 30 |
| F26 | - | Fuse 26 on fuse holder B -SB26- | 30 A | - | Onboard supply control unit -J519-
Left side light supply, left main beam, left dipped beam, left turn signal, left fog light | 30 |
| F27 | - | Fuse 27 on fuse holder B -SB27- | 50 A | - | Automatic glow period control unit -J179-
Glow plug 1 -Q10-
Glow plug 2 -Q11-
Glow plug 3 -Q12-
Glow plug 4 -Q13-
for models with engine codes BLS, CBAB, CBAA, CAYC, CFFA, CFFB only | 87 |
| F27 | - | Fuse 27 on fuse holder B -SB27- | 40 A | - | Secondary air pump motor -V101- (BSE) | 87 |
| F28 | - | Fuse 28 on fuse holder B -SB28- | 40 A | - | Convertible roof actuation control unit -J256- (hydraulic pump) | 30 |
| F29 | - | Fuse 29 on fuse holder B -SB29- | 50 A | - | B300 Positive connection 4 (30), in main wiring harness
Supply for the fuses:
-SC32- up to -SC37-, -SC39-, -SC44-, -SC45-, -SC48-, -S131- | 30 |
| F30 | - | Fuse 30 on fuse holder B -SB30- | 50 A | - | Terminal 15 voltage supply relay 2 -J681-
Supply for the fuses:
-SC1- up to -SC6-, -SC29- up to -SC31-, -SC40- up to -SC42-, -SC46-, -SC47-, -SC49- | 30 |
| No. | | Current Flow Diagram designation | Nominal value | | Function/component | Terminal |
| 1 | - | Fuse 1 on fuse holder C -SC1- | 10 A | - | Lighting switch -E1-
Headlight range control regulator -E102-
Air mass meter -G70- (BLS, BZB, CAWB, CDAA, CCZA, CAYC)
Trailer detector control unit -J345-
Headlight range control unit -J431-
Heater element for crankcase breather -N79- (BLS, CBAB, CBAA, BSE, CAYC, CFFA, CFFB)
16-pin connector -T16- (diagnostic connector)
Left headlight range control motor -V48-
Right headlight range control motor -V49- | 15 |
| 1 | - | Fuse 1 on fuse holder C -SC1- | 10 A | - | Air mass meter -G70- (CBAB, CBAA) | 15 |
| 1 | - | Fuse 1 on fuse holder C -SC1- | 10 A | - | Stop/start system button -E693-
only models with stop/start system
no longer fitted, phased from model year 2010 | 15 |
| 2 | - | Fuse 2 on fuse holder C -SC2- | 10 A | - | Engine control units -J...-
Tiptronic switch -F189-
Fuel pump relay -J17- (BSE)
ABS control unit -J104-
Current supply relay for Simos control unit -J363- (BSE)
Power steering control unit -J500-
Data bus diagnostic interface -J533-
Fuel pump control unit -J538- (BZB, CAWB, CDAA, CCZA, CBZB, CAXC)
Selector lever sensors control unit -J587-
Mechatronic unit for dual clutch gearbox -J743- | 15 |
| 2 | - | Fuse 2 on fuse holder C -SC2- | 10 A | - | Brake light switch -F-
Brake pedal switch -F63-
is dropped from May 2009 | 15 |
| 2 | - | Fuse 2 on fuse holder C -SC2- | 10 A | - | Starter relay 1 -J906-
Starter relay 2 -J907-
Automatic anti-dazzle interior mirror relay -J910-
applicable from May 2009 | 15 |
| 3 | - | Fuse 3 on fuse holder C -SC3- | 5 A | - | Airbag control unit -J234-
Front passenger side airbag deactivated warning lamp -K145- | 15 |
| 4 | - | Fuse 4 on fuse holder C -SC4- | 5 A | - | Heated rear left seat switch with regulator -E128-
Heated rear right seat switch with regulator -E129-
Tyre pressure monitor button -E226-
TCS and ESP button -E256-
Garage door operating unit -E284-
Reversing light switch -F4-
High-pressure sender -G65-
Air quality sensor -G238-
Oil level and oil temperature sender -G266-
Heater control unit -J162-
Climatronic control unit -J255-
Air conditioning system control unit -J301-
Navigation system with CD drive control unit -J401-
Parking aid control unit -J446-
Garage door operation control unit -J530-
Driver seat heating control unit -J726-
Front passenger seat heating control unit -J727-
Left washer jet heater element -Z20-
Right washer jet heater element -Z21- | 15 |
| 4 | - | Fuse 4 on fuse holder C -SC4- | 5 A | - | Automatic anti-dazzle interior mirror -Y7-
only models without stop/start system
applicable from May 2009 | 15 |
| 4 | - | Fuse 4 on fuse holder C -SC4- | 5 A | - | Voltage stabiliser -J532-
only models with stop/start system
applicable from May 2009 | 15 |
| 4 | - | Fuse 4 on fuse holder C -SC4- | 5 A | - | Stop/start system button -E693-
only models with stop/start system
Gradual introduction during model year 2010 | 15 |
| 5 | - | Fuse 5 on fuse holder C -SC5- | 5 A | - | Power output module for left headlight -J667- | 15 |
| 6 | - | Fuse 6 on fuse holder C -SC6- | 5 A | - | Power output module for right headlight -J668- | 15 |
| 7 | - | Not assigned | - | - | | - |
| 8 | - | Fuse 8 on fuse holder C -SC8- | 5 A | - | Control unit in dash panel insert -J285-
applicable from May 2009 | 30 |
| 9 | - | Fuse 9 on fuse holder C -SC9- | 15 A | - | Navigation operating electronics control unit -J402- (RNS-E)
Control unit with display for radio and navigation system -J503- (RNS low)
Radio -R-
8-pin connector -T8- (preparation for radio supply)
applicable from May 2009 | 30 |
| 10 | - | Fuse 10 on fuse holder C -SC10- | 7.5 A | - | Telephone transmitter and receiver unit -R36-
Connection for external audio sources -R199-
18-pin connector -T18a- (VDA interface)
applicable from May 2009 | 30 |
| 11 | - | Fuse 11 on fuse holder C -SC11- | 10 A | - | Automatic anti-dazzle interior mirror relay -J910-
Automatic anti-dazzle interior mirror -Y7-
only models with stop/start system
applicable from May 2009 | 30 |
| 12 | - | Fuse 12 on fuse holder C -SC12- | 10 A | - | Driver door control unit -J386-
Front passenger door control unit -J387- | 30 |
| 13 | - | Fuse 13 on fuse holder C -SC13- | 10 A | - | Convenience system central control unit -J393-
is dropped from May 2009 | 30 |
| 14 | - | Fuse 14 on fuse holder C -SC14- | 10 A | - | ABS control unit -J104- (MK60 with hydraulic brake servo)
Selector lever sensors control unit -J587- | 30 |
| 15 | - | Fuse 15 on fuse holder C -SC15- | 10 A | - | Front interior light -W1- | 30 |
| 16 | - | Fuse 16 on fuse holder C -SC16- | 10 A | - | Rain and light sensor -G397-
Heater control unit -J162-
Climatronic control unit -J255-
Air conditioning system control unit -J301-
Remote control receiver for auxiliary heater -R64-
16-pin connector -T16- (diagnostic connector) | 30 |
| 16 | - | Fuse 16 on fuse holder C -SC16- | 10 A | - | Lighting switch -E1-
applicable from May 2009 | 30 |
| 17 | - | Fuse 17 on fuse holder C -SC17- | 5 A | - | Interior monitoring sensor -G273-
Alarm horn -H12- | 30 |
| 18 | - | Fuse 18 on fuse holder C -SC18- | 5 A | - | Onboard supply control unit -J519- (diagnostic cable)
Voltage stabiliser -J532- (diagnosis wiring)
Engine control unit -J623- (diagnostic cable)
only models with stop/start system
applicable from May 2009 | 50 |
| 19 | - | Not assigned | - | - | | - |
| 20 | - | Not assigned | - | - | | - |
| 21 | - | Not assigned | - | - | | - |
| 22 | - | Fuse 22 on fuse holder C -SC22- | 40 A | - | Fresh air blower control unit -J126-
Fresh air blower -V2- | 30 |
| 23 | - | Fuse 23 on fuse holder C -SC23- | 30 A | - | Driver side window regulator motor -V147- | 30 |
| 24 | - | Fuse 24 on fuse holder C -SC24- | 20 A | - | Cigarette lighter -U1- | 30 |
| 25 | - | Fuse 25 on fuse holder C -SC25- | 30 A | - | Heated rear window -Z1- | 30 |
| 26 | - | Fuse 26 on fuse holder C -SC26- | 20 A | - | Socket -U- (in luggage compartment) | 30 |
| 27 | - | Fuse 27 on fuse holder C -SC27- | 15 A | - | Fuel system pressurisation pump -G6-
Fuel pump relay -J17- (BLS, CBAB, CBAA, BSE, CAYC, CFFA, CFFB)
Electric fuel pump 2 relay -J49- (BSE)
Fuel pump control unit -J538- (BZB, CAWB, CDAA, CCZA, CBZB, CAXC) | 30 |
| 27 | - | Fuse 27 on fuse holder C -SC27- | 15 A | - | Electric fuel pump 2 relay -J49- (BLS, CBAB, CBAA, CAYC, CFFA, CFFB)
for models with auxiliary heating only | 30 |
| 27 | - | Fuse 27 on fuse holder C -SC27- | 15 A | - | Relay for supplementary fuel pump -J832- (CBAB, CBAA, CFFA, CFFB)
Supplementary fuel pump -V393- (CBAB, CBAA, CFFA, CFFB) | 30 |
| 28 | - | Fuse 28 on fuse holder C -SC28- | 30 A | - | Rear left window regulator motor -V26-
Rear right window regulator motor -V27-) | 30 |
| 29 | - | Not assigned | - | - | | - |
| 30 | - | Not assigned | - | - | | - |
| 31 | - | Fuse 31 on fuse holder C -SC31- | 20 | - | Vacuum pump relay -J57- (BSE)
Vacuum pump for brakes -V192- (BSE) | 15 |
| 32 | - | Fuse 32 on fuse holder C -SC32- | 30 A | - | Headlight washer system pump -V11- | 30 |
| 33 | - | Fuse 33 on fuse holder C -SC33- | 25 A | - | Convertible roof actuation control unit -J256- | 30 |
| 34 | - | Fuse 34 on fuse holder C -SC34- | 20 A | - | Heated rear left seat control unit -J215-
Heated rear right seat control unit -J216- | 30 |
| 35 | - | Not assigned | - | - | | |
| 36 | - | Fuse 36 on fuse holder C -SC36- | 10 A | - | Driver seat lumbar support adjustment switch -E176-
Front passenger seat lumbar support adjustment switch -E177- | 30 |
| 37 | - | Fuse 37 on fuse holder C -SC37- | 20 A | - | Climatronic control unit -J255- (front seat heating)
Driver seat heating control unit -J726-
Front passenger seat heating control unit -J727- | 30 |
| 38 | - | Fuse 38 on fuse holder C -SC38- | 30 A | - | Front passenger side window regulator motor -V148- | 30 |
| 39 | - | Fuse 39 on fuse holder C -SC39- | 5 A | - | Interface control unit for vehicle location system -J843- (interface for special functions) | 30 |
| 40 | - | Fuse 40 on fuse holder C -SC40- | 40 A | - | Starter -B- | 15 |
| 41 | - | Not assigned | - | - | | - |
| 42 | - | Fuse 41 on fuse holder C -SC42- | 15 A | - | Washer pump -V5-
is dropped from May 2009 | 15 |
| 43 | - | Fuse 43 on fuse holder C -SC43- | 20 A | - | Convenience system central control unit -J393-
is dropped from May 2009 | 30 |
| 43 | - | Fuse 43 on fuse holder C -SC43- | 20 A | - | Onboard supply control unit -J519-
applicable from May 2009 | 30 |
| 44 | - | Fuse 44 on fuse holder C -SC44- | 20 A | - | Trailer detector control unit -J345- | 30 |
| 45 | - | Fuse 45 on fuse holder C -SC45- | 20 A | - | Trailer detector control unit -J345- | 30 |
| 46 | - | Fuse 46 on fuse holder C -SC46- | 10 A | - | Trailer socket -U10- | 15 |
| 47 | - | Fuse 47 on fuse holder C -SC47- | 5 A | - | 18-pin connector -T18a- (VDA interface) | 15 |
| 47 | - | Fuse 47 on fuse holder C -SC47- | 5 A | - | Aerial amplifier for mobile telephone -R86-
applicable from May 2009 | 15 |
| 48 | - | Not assigned | - | - | | - |
| 49 | | Not assigned | - | - | | - |
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