Table of contents: Relay/fuse box B "SB" before October… ↓ Fuses in fuse box ST1 on fuse block… ↓ Relay/fuse box B "SB" since November… ↓
Relay/fuse box B "SB" before October 2011.
The location of the relay/fuse box in "SB" left-hand drive vehicles before October 2011 is in the junction box of the water drain box on the driver's side.
K. Plate fuse for engine glow plugs "S39", 60 A.
K. Plate fuse for glow plugs of the engine "S39", 80 A.
K. Secondary air supply pump fuse "S130", 50 A.
L. NOx sensor fuse "S360", 5 A.
ST1 - Fuse box 1, fuses - chapter.

Fuses in fuse box ST1 on fuse block B "SB" (black)
Fuse colors
- 35 A. green-blue.
- 30 A. green.
- 25 A. white.
- 20 A. yellow.
- 15 A. blue.
- 10 A. red.
- 7.5 A. brown.
- 5 A. beige.
| Number | Designation on the electrical circuit | Nominal value | Function/component | Terminal |
| 1 | Fuse 1 in fuse box B "SB1" | 15 A | Automatic transmission control unit "J217" Mechatronic unit for dual-clutch transmission "J743" | 30 |
| 2 | Fuse 2 in fuse box B - SB2- | 5 A | Engine oil level and temperature sensor "G266" | 87 |
| 3 | Fuse 3 in fuse box B "SB3" | 5 A | Engine control unit "J623" Air flow meter "G70" | 15 |
| 4 | Fuse 4 in fuse box B "SB4" | 5 A | Engine control unit "J623" | 30 |
| 5 | Fuse 5 in fuse box B "SB5" | 10 A 15 A 15 A 15 A 15 A 15 A 15 A 20 A | Air flow meter "G70" Automatic glow plug control unit "J179" Secondary air pump relay "3299" Throttle body "J338" Low-power heating relay "J359" High Power Heating Relay "J360" Boost pressure limitation solenoid valve - N75- Heating resistor for the crankcase ventilation system of the engine "N79" Activated charcoal canister solenoid valve 1 "N80" Secondary air supply control valve "N112" Solenoid valve for left electrohydraulic engine mount "N144" Solenoid valve for right electrohydraulic engine mount "N145" Intake manifold variable geometry system valve "N156" Air filter bypass valve "N275" Fuel pressure regulator "N276" Fuel metering valve - N290- Secondary air supply control valve 2 "N320" EGR radiator changeover valve "N345" Oil pressure reducing valve "N428" Fuel system diagnostic pump "V144" | 87 |
| 6 | Fuse 6 in fuse box B "SB6" | 15 A | Engine control unit - J623- | 87 |
| 7 | Fuse 7 in fuse box B "SB7" | 10 A 10 A 10 A 10 A 10 A 10 A 15 A 15 A | Actuator 1 of the variable valve timing system "F366" Actuator element 8 of the variable valve timing system "F373" Actuator 9 of the variable valve timing system "F374" Actuator 12 of the variable valve timing system "F377" After-run coolant flush relay "J151" Relay of additional cooling system pump "Z496" Boost pressure limitation solenoid valve "N75" Activated charcoal canister solenoid valve 1 "N80" Solenoid valve for left electrohydraulic engine mount "N144" Solenoid valve for right electrohydraulic engine mount "N145" Valve 1 of the variable valve timing system - N205- Valve 2 of the variable valve timing system "N208" Charge air recirculation valve "N249" Fuel pressure regulator "N276" Fuel metering valve - N290- Intake manifold flap valve "N316" Valve 1 of the exhaust valve timing regulator "N318" Valve 2 of the exhaust valve timing regulator "M319" Climatronic coolant shut-off valve "N422" Oil pressure reducing valve "N428" Fuel system diagnostic pump "V144" Charge air cooling pump "V188" | 87 |
| 8 | Fuse 8 in fuse box B "SB8" | 5 A 10 A 10 A 10 A 20 A 20 A 20 A 20 A | EGR radiator pump "V400" 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" Ignition coil 5 with output stage "N323" Ignition coil 6 with output stage "N324" | 87 |
| 9 | Fuse 9 in fuse box B "SB9" | 5 A 15 A 15 A 20 A 20 A 20 A | Additional fuel pump relay "J832" Lambda probe heating element 1 after catalytic converter "Z29" Lambda probe heating element 2 after the "Z30" catalytic converter | 87 |
| 10 | Fuse 10 in fuse box B "SB10" | 10 A 15 A 15 A 15 A 15 A 15 A 15 A | Lambda probe heating element "Z19" Lambda probe heating element 2 "Z28" Lambda probe heating element 1 after catalytic converter "Z29" | 87 |
| 11 | Fuse 11 in fuse box B "SB11" | 5 A | Radiator Fan Control Unit "J293" Radiator Fan Control Unit 2 "J671" | 87 |
| 12 | Fuse 12 in fuse box B "SB12" | 5 A | Air flow meter "G70" Automatic transmission control unit "J217" Mechatronic unit for dual-clutch transmission "J743" | 15 |
Relay/fuse box B "SB" since November 2011
Installation locations of the relay/fuse block B "SB" on left-hand drive vehicles from November 2011: in the water deflector box junction box on the driver's side.
K. Plate fuse for engine glow plugs "S39", 60 A.
K. Plate fuse for glow plugs of the engine "S39", 80 A.
K. Secondary air supply pump fuse "S130", 50 A.
ST1. Fuse box 1, fuses.
Installation location of the relay/fuse box B "SB" of left-hand drive vehicles from November 2011.; in the junction box of the water drainage box on the driver's side.
Fuses in fuse box ST1 on fuse block B "SB" (black)
| Number | Designation on the electrical circuit | Nominal value | Function/component | Terminal |
| 1 | Fuse 1 in fuse box B "SB1" | 15 A | Automatic transmission control unit "J217" Mechatronic unit for dual-clutch transmission "J743" | 30 |
| 2 | Fuse 2 in fuse box B "SB2" | 5 A | Engine oil level and temperature sensor "G266" | 87 |
| 3 | Fuse 3 in fuse box B "SB3" | 5 A | Engine control unit "J623" | 15 |
| 4 | Fuse 4 in fuse box B "SB4" | 5 A | Engine control unit "J623" | 30 |
| 5 | Fuse 5 in fuse box B "SB5" | 5 A 5 A 10 A 10 A 10 A | Air flow meter "G70" Fuel pressure regulator "N276" Fuel metering valve "N290" | 87 |
| 6 | Fuse 6 in fuse box B "SB6" | 15 A | Engine control unit "J623" Injector 2 cylinder 1 "N532" Injector 2 cylinder 2 "N533" Injector 2 cylinder 3 "N534" Injector 2 cylinder 4 "N535" | 87 |
| 7 | Fuse 7 in fuse box B "SB7" | 10 A 10 A 10 A 10 A | Actuator 1 of the variable valve timing system "F366" Actuator 2 of the variable valve timing system "F367" Actuator 3 of the variable valve timing system "F368" Actuator 4 of the variable valve timing system "F369" Actuator 5 of the variable valve timing system "F370" Actuator 6 of the variable valve timing system "F371" Actuator 7 of the variable valve timing system "F372" Actuator element 8 of the variable valve timing system "F373" Boost pressure limitation solenoid valve "N75" Activated charcoal canister solenoid valve 1 "N80" Solenoid valve for left electrohydraulic engine mount "N144" Solenoid valve for right electrohydraulic engine mount "N145" Valve 1 of the variable valve timing system "N205" Valve 2 of the variable valve timing system "N208" Charge air recirculation valve "N249" Fuel pressure regulator "N276" Fuel metering valve "N290" Intake manifold flap valve "N316" Valve 1 of the exhaust valve timing regulator "N318" Climatronic coolant shut-off valve "N422" Oil pressure reducing valve "N428" Coolant valve for gearbox "N488" Piston injector control valve "N522" Coolant after-run pump "V51" Actuator 5 of the variable valve timing system "F370" Actuator 6 of the variable valve timing system "F371" Actuator 7 of the variable valve timing system "F372" Actuator element 8 of the variable valve timing system "F373" Boost pressure limitation solenoid valve "N75" Activated charcoal canister solenoid valve 1 "N80" Solenoid valve for left electrohydraulic engine mount "N144" Solenoid valve for right electrohydraulic engine mount "N145" Valve 1 of the variable valve timing system - N205- Valve 2 of the variable valve timing system "N208" Charge air recirculation valve "N249" Fuel pressure regulator "N276" Fuel metering valve "N290" Intake manifold flap valve "N316" Valve 1 of the exhaust valve timing regulator "N318" Climatronic coolant shut-off valve "N422" Oil pressure reducing valve "N428" Coolant valve for gearbox "N488" Piston injector control valve "N522" Coolant after-run pump "V51" | 87 |
| 8 | Fuse 8 in fuse box B "SB8" | 5 A 5 A 10 A 15 A | NOx Sensor 2 "G687" NOx sensor control unit 2 "J881" | 87 |
| 9 | Fuse 9 in fuse box B "SB9" | 5 A | Voltage stabilizer "J532" Engine control unit "J623" | 87 |
| 10 | Fuse 10 in fuse box B "SB10" | 10 A 10 A 15 A 15 A 15 A 15 A | Lambda probe heating element "Z19" Lambda probe heating element 2 "Z28" Lambda probe heating element 1 after catalytic converter "Z29" | 87 |
| 11 | Fuse 11 in fuse box B "SB11" | 5 A | Radiator Fan Control Unit "J293" Radiator Fan Control Unit 2 "J671" | 87 |
| 12 | Fuse 12 in fuse box B "SB12" | 5 A | Automatic transmission control unit - 217- Mechatronic unit for dual-clutch transmission "J743" | 87 |
| 13 | Fuse 13 in fuse box B "SB13" | not used | ||
| 14 | Fuse 14 in fuse box B "SB14" | 5 A 20 A 20 A 20 A 20 A | Engine Component Power Relay 2 "J976" 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" Ignition coil 5 with output stage "N323" Ignition coil 6 with output stage "N324" Climatronic coolant shut-off valve "N422" EGR radiator pump "V400" | 87 |
| 15 | Fuse 15 in fuse box B "SB15" | 5 A | Power steering control unit "J500" | 87 |
| 16 | Fuse 16 in fuse box B "SB16" | 15 A | Thermostat of the parametric engine cooling system "F265" Automatic glow plug control unit "J179" Secondary air pump relay "J299" Low-power heating relay "J359" High Power Heating Relay "J360" Additional coolant pump relay "J496" Gearbox cooling circuit relay "J696" Boost pressure limitation solenoid valve "N75" Heating resistor for the crankcase ventilation system of the engine "N79" Activated charcoal canister solenoid valve 1 "N80" Secondary air supply control valve "N112" Solenoid valve for left electrohydraulic engine mount "N144" Solenoid valve for right electrohydraulic engine mount "N145" Air filter bypass valve "N275" Secondary air supply control valve 2 "N320" Radiator recirculation system changeover valve. OG "N345" Oil pressure reducing valve "N428" Coolant valve for gearbox "N488" Cylinder head coolant circuit valve "N489" Engine temperature control actuator "N493" Charge air cooling pump "V188" Crankcase ventilation valve -V546 | 87 |
| 17 | Fuse 17 in fuse box B "SB17" | 15 A | Lambda probe heating element 1 after catalytic converter "Z29" Lambda probe heating element 2 after the "Z30" catalytic converter | 87 |
