Mercedes-Benz Sprinter 906 represents the 2nd generation of the Mercedes Sprinter model range. Years of production: 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 and 2017 with different engine options (411, 511,
515 CDI and. In this material you will find information about the locations of electronic control units, a description of fuses and relays of the Mercedes Sprinter 906 with block diagrams and photo examples of their execution. Let’s highlight the fuses that are responsible for the cigarette lighter.
Block arrangement
General block layout diagram
Description
| 1 | ABS electronic control unit |
| 2 | Air conditioner condenser fan motor relay |
| 3 | Electronic air conditioning control unit – in the heater control panel |
| 4 | Air conditioner/heater fan motor control unit – next to the fan motor |
| 5 | Antenna signal amplifier |
| 6 | Air suspension control unit – strut “0” |
| 7 | Anti-theft system siren – engine compartment, left side |
| 8 | Additional battery – engine compartment, left side |
| 9 | Auxiliary battery relay |
| 10 | Auxiliary heater control unit (type 1) |
| 11 | Auxiliary heater control unit (type 2) |
| 12 | Auxiliary heater control unit (type C) – in the heater unit |
| 13 | Rechargeable battery |
| 14 | Diagnostic Connector (DLC) |
| 15 | Door electrical control unit, driver’s side |
| 16 | Left rear door electrical equipment control unit |
| 17 | Right rear door electrical equipment control unit |
| 18 | Electronic engine control unit (diesel) – engine 651 |
| 19 | Electronic engine control unit (diesel) – except engine 651 |
| 20 | Electronic engine control unit (petrol) – on the engine |
| 21 | Fuse/relay block, instrument panel |
| 22 | Fuse/relay block, footwell |
| 23 | Fuse/relay block, under seat |
| 24 | Glow plug control unit – engine 646 |
| 25 | Glow plug control unit – except for engine 646 |
| 26 | Headlight control unit, left (xenon headlights) |
| 27 | Headlight control unit, right (xenon headlights) |
| 28 | Headlight range control unit – A-pillar |
| 29 | Rear window heater relay. |
| 30 | Rear window heater relay 2 (with anti-theft system) |
| 31 | Windshield heater relay |
Fuse and relay block under the panel
Under the dashboard, in the footwell on the left side of the car, behind a protective cover, is the main fuse and relay box. To access it, you need to turn the bracket inside the cover.
Marking
| 1 | 15A Audible signal |
| 2 | 25A Steering column lock (ELV), electronic ignition and starter switch (EZS) |
| 3 | 10A Terminal 30z (petrol engines), electronic ignition and starter switch (EZS), instrument cluster |
| 4 | 5A Light switch (LDS), center console switch block (OBF; terminal 30) |
| 5 | 30A Front wiper |
| 6 | 15A Fuel pump |
| 10A Engine control, terminal 87 (5) (vehicles with code MI6/XM0) | |
| 7 | 5A Steering Column Pipe Module (MRM) |
| 8 | 20A Engine control, terminal 87 (2) |
| 9 | 20A Engine management, terminal 87 (3) (cars with petrol engine) |
| 25A Engine control, terminal 87 (3) (diesel vehicles) | |
| 20A Engine management, terminal 87 (1) (vehicles with code MI6/XM0) | |
| 10 | 10A Engine control, terminal 87 (4) |
| 11 | 15A Terminal 15R |
| 12 | 10A Airbag, terminal 15R |
| 13 | 15A Audio module, cigarette lighter , glove box lighting, body manufacturer’s tailgate, PND power socket (mobile navigation system) |
| 14 | 5A Light switch (LDS), instrument cluster, diagnostic connector, reversing light deactivation, anti-theft system with vehicle tracking, terminal 15 |
| 15 | 5A Headlight range adjustment system (LWR), heating system in the front of the vehicle |
| 16 | 10A Engine control, terminal 87 (1) |
| 17 | 10A Airbag |
| 18 | 7.5A Terminal 15, brake light switch |
| 19 | 7.5A Interior lighting, terminal 30 |
| 20 | 25A Terminal 30, right front window regulator, signal registration and excitation module |
| 21 | 5A Engine control unit, terminal 15 |
| 22 | 5A ABS, ESP, terminal 15 |
| 23 | 20/25A Starter, terminal 50 |
| 10A Engine control, terminal 87 (6) (vehicles with code MI6/XM0) | |
| 24 | 10A Engine components, terminal 15 (diesel engines) control unit (vehicles with natural gas engine NGT) |
| 25 | 25A Front Panel Socket |
| 26 | 25A Driver’s door control unit |
| 27 | 10A Diagnostic connector |
| 28 | 25A Brake system (valves) |
| 29 | 40A Brake system (priming pump) |
| 30 | 7.5/10A Electric motors terminal 87 (5) (7.5A – M272, OM651; 10A – OM642) |
| 31 | 7.5/10A Electric motors terminal 87 (6) (7.5A – OM651, M271, M272 ; 10A – OM642) |
| 32 | 30A Headlight cleaner |
| 33 | 15A Anti-theft alarm system (EDW), flashing beacon/SGU |
| 34 | 10A Reserve (until 03/07) |
| 10A Auxiliary turn signal module | |
| 35 | 15A Radio 1 DIN |
| 20A Radio 2 DIN | |
| 36 | 7.5A Mobile phone, tachograph, navigation system holder |
| 37 | 30A Fan in the front of the passenger compartment, additional heating system, fan level 1 |
| 38 | 7.5A Timer for additional heating system, radio receiver, electrical equipment for optional equipment – DIN socket, FleetBoard system, anti-theft device with vehicle tracking |
| 39 | 30A Seat heating |
| 40 | 10A Body electrical equipment, third-party manufacturers |
| 5A Brake system control unit | |
| 41 | 10A Front air conditioning, CD changer, heating system, rear passenger compartment heating system |
| 42 | 7.5/10A Motion sensor, comfort lighting, satellite radio, reading lamp and cargo area light, luggage compartment light |
| 43 | 7.5A Air conditioning in the rear of the cabin |
| Relay | |
| R1 | Horn relay |
| R2 | Front wiper relay, mode 2 |
| Wiper relay, stage 1/2 | |
| R3 | Fuel pump relay |
| Starter relay, terminal 15 (vehicles with code MI6/XM0) | |
| R4 | Front wiper relay, mode 1 |
| Wiper On/Off Relay | |
| R5 | Starter relay, terminal 50 |
| R6 | Relay, terminal 15R |
| R7 | Engine control relay, terminal 87 |
| R8 | Relay, terminal 15 |
Fuse and relay blocks under the seat
On the left side, under the driver’s seat, there are several blocks with fuses and relays.
Fuse and relay box on the side of the seat
For access, you must remove the protective cover.
Option 1
Photo example
Appointment
| 1 | 5A Mirror adjustment, rear window heating relay |
| 2 | 30A Rear wiper |
| 3 | 5A Heater timer, reversing camera, neutral gear switch (with start-stop system, all-wheel drive and engine run-on function), electrical equipment for retrofitting – DIN socket (roof), FleetBoard system, anti-theft system with vehicle tracking, |
| 4 | 7.5A Tachograph, Automatic Speed Regulation (ADR), Power Take-Off, Trailer Hitch (AAG) |
| 5 | 10A Gear shift system control unit (EGS), terminal 87 |
| 5A Start function, ECO engine shutdown, hood switch | |
| 6 | 5A All-wheel drive |
| 10A All-wheel drive, ground clearance adjustment system (ENR), additional oil pump | |
| 7 | 7.5/10/15A Automatic transmission control lever module (EWM) |
| 8 | 10A Three-way tipper/tailgate, terminal 15, PARKTRONIC |
| 9 | 15A SGU/roof fan |
| 7.5A Air conditioning compressor clutch, turn-off warning buzzer for reversing alarm | |
| 10 | 25A Bodywork equipment, terminal 30 |
| 11 | 15A Bodywork equipment, terminal 15 |
| 12 | 10A Body equipment, terminal D+ |
| 13 | 10A Additional turn signal indicator module (up to 03/07) |
| 30A Air conditioning in the rear of the cabin | |
| 20A Fuel pump FSCM (Fuel level measurement control module) | |
| 15A Fuel pump relay without FSCM (vehicles with code MI6/XM0) | |
| 14 | 20A Trailer socket |
| 15 | 25A Trailer Hitch (AAG) |
| 16 | 7.5A Tire pressure monitoring system (RDK), Parktronic |
| 17 | 25A Parameter Special Module (PSM) Control Unit |
| 18 | 25A Parameter Special Module (PSM) Control Unit |
| 19 | 5/10A Ceiling-mounted control panel (DBE) |
| 25A Lift-and-slide sunroof, overhead control panel (DBE) | |
| 10A System «ERA-GLONASS» | |
| 20 | 7.5A Clearance lights, license plate light, identification light |
| 21 | 30A Heated rear window without EDW (anti-theft alarm system) |
| 15A Heated rear window with EDW (anti-theft alarm system) | |
| 22 | 15A Heated rear window |
| 20A Car power socket | |
| 23 | 10A Body electrical equipment, third-party manufacturer |
| 15A Socket in the rear of the cabin, left | |
| 24 | 15A Driver’s seat box socket |
| 25 | 15A Socket in the rear of the cabin on the right |
| 26 | 25A Additional liquid heater |
| 27 | 25A Auxiliary heater |
| 20A Auxiliary air heater | |
| 28 | 30A Air conditioning in the rear of the cabin (until 03/07) |
| 7.5A CNG, terminal 87 | |
| 25A Starter relay SRB (fuse and relay block; vehicles without buffer battery) | |
| 25A Starter with support from the on-board network via an additional battery | |
| 29 | 10/30A All-wheel drive |
| 7.5A Terminal 87 (7) gas fuel system, vehicles with natural gas engine NGT | |
| 30 | 30A Air suspension (compressor), brake booster (for North American countries) |
| 10A All-wheel drive (compressor) | |
| 15A Additional heat exchanger fan | |
| 31 | 15/30A Sliding door on the left, fan in the rear of the cabin |
| 15A Sliding door closing mechanism amplifier, left | |
| 32 | 10A Keyless Entry |
| 5A SCR system – exhaust gas aftertreatment system control relay | |
| 33 | 30A Sliding door right, suspension unit (ENR) |
| 15A Sliding door closing mechanism amplifier, right | |
| 34 | 30A Left sliding door (until 03/07) |
| 20A SCR system – heating system 1, AdBlue® reductant, vehicles with diesel exhaust gas aftertreatment system | |
| 35 | 30A Brake booster |
| 5A SCR system – heating system 2, AdBlue® reductant, vehicles with diesel exhaust gas aftertreatment system | |
| 36 | 15A SCR system – control and heating system 3, AdBlue® reductant, vehicles with diesel exhaust gas aftertreatment system |
| 37 | 5A COLLISION PREVENTION ASSIST / FCW (Forward Collision Warning) |
| 5A Rebuilding alarm / BSM (dead zone monitoring system) | |
| 38 | 10A Multifunctional video camera (MK) with adaptive high beam headlights with lane departure warning function |
| 39 | 7.5A Body electrical equipment (delivery operation), reinforced air conditioning system in the rear of the vehicle |
| 15A Ceiling fan, siren | |
| 40 | 15A Charging current from the buffer battery (vehicles with a buffer battery) |
| 41 | 7.5A SAM (signal acquisition and excitation module) reference voltage of the buffer battery |
| 42 | 30A Rear air conditioning system |
| 43 | 10A Electric step/sliding door, right |
| 44 | 10A Electric step/sliding door, left |
| 45 | 5A Electric step, control module and warning buzzer |
| Relay | |
| R1 | Relay class D+ of the body manufacturer |
| R2 | Relay cl. 15 body manufacturer |
| R3 | Lighting relay |
| Tail lift relay | |
| R4 | Headlight relay |
| R5 | Flashing beacon relay |
| R6 | EDW sound signal relay (EDW – anti-theft alarm system) |
| R7 | Not used |
| R8 | SGU relay |
| R9 | Circulation pump relay |
| R10 | Not used |
Option 2
Transcript
| 1 | 5A Power window control panel in the driver’s door Relay 2 for rear window heating |
| 2 | 30A Rear window wiper motor in the door |
| 3 | 5A Timer Neutral switch Gearbox Display panel Rear view camera |
| 4 | 7.5A Switch for adjusting operating speed PTO control sensor Trailer recognition control unit Tachograph control unit |
| 5 | 5/10A Selector Fur control unit. Electronically controlled gearbox Hood limit switch (from November 2011) |
| 6 | 5/10A Crankcase ventilation system heating resistor Battery regulation system control unit (from May 2011 to May 2013) |
| 7 | 10A Fuel filter heating element |
| 8 | 5/10A Tipping device button Parking assistant control unit (from May 2013) Special body relay, cl. 15 (until November 2011) Connector, 6-pin -T6ah- Connector, 7-pin -T7f- (tailgate connection block) |
| 9 | 15A Roof fan switch for cargo compartment supply ventilation (until November 2011) Siren relay (until November 2011) Not used (since November 2011) |
| 10 | 25A For the manufacturer of superstructures and special equipment |
| 11 | 15A Relay for special overhead buoys, class 15 |
| 12 | 10A Relay for special overhead buoys, class 61 |
| 13 | Reserve |
| 14 | 20A Connector, 9-pin -T9b- (preparation for aftermarket TSU installation) TSU socket |
| 15 | 25A Trailer recognition control unit |
| 16 | 7.5A Parking assistant control unit Tire pressure monitoring system control unit |
| 17 | 25A Control unit for programmable special functions |
| 18 | 25A Control unit for programmable special functions |
| 19 | 5/25A Roof electrical control unit |
| 20 | 7.5/10A Coolant pump relay after engine shut-off Entrance and footwell lighting relay |
| 21 | 30A Rear window heating relay |
| 22 | 15A Relay 2 rear window heater |
| 23 | 10/15A Cargo platform lighting switch 12 V socket 2 -U18- |
| 24 | 15A 12V socket 4 |
| 25 | 15A 12V socket 3 |
| 26 | 25A Auxiliary heater control unit |
| 27 | 20/25A Auxiliary heater control unit |
| 28 | 30/40A Transmission hydraulic pump relay, Starter relay 1 |
| 29 | 15A Fur control unit. Electronically controlled gearbox |
| 30 | 5A Battery regulation system control unit |
| 31 | 15/30A Left sliding door control unit (from May 2012) Rear supply fan control unit Rear supply fan |
| 32 | 5A Control unit for battery monitoring |
| 33 | 7.5/15/30A Not used Right sliding door control unit (from May 2012) Transfer case lock relay (from January 2012) Air compressor (from January 2012) |
| 34 | 7.5/15A Regenerator heating system control unit Gearbox sensor for differential lock |
| 35 | 3/15A Regenerator heating system control unit Air compressor protection control unit (since January 2012) |
| 36 | 5A Not used (until January 2012) Air compressor switch (since January 2012) |
| 37 | Reserve |
| 38 | Reserve |
| 39 | 7.5/15A Roof fan switch for cargo compartment supply ventilation (from November 2011) Siren relay (from November 2011) |
| 40 | Reserve |
| 41 | Reserve |
| 42 | 30A Evaporator fan control unit -J349- |
| 43 | Reserve |
| 44 | Reserve |
| 45 | Reserve |
| 46 | Reserve |
| 47 | Reserve |
| 48 | Reserve |
| 49 | Reserve |
| 50 | Reserve |
| 51 | Reserve |
| 52 | Reserve |
| 53 | Reserve |
| 54 | Reserve |
| 55 | Reserve |
| 56 | Reserve |
Relay under the seat
Additional relays can be installed under the seat itself.
Description
| R1 | Starter relay, right-hand drive vehicles |
| R2 | Unloading relay, terminal 15 |
| R3 | Relay, terminal 15, starter |
| R4 | Secondary air injection/secondary air pump relaySCR system relay, vehicles with exhaust gas aftertreatment system |
| R5 | Fuel pump relay |
| R6 | Front fan relay, fan speed 1 |
| R7 | Unloading relay, terminal 15 R |
| R8 | Starter relay, auxiliary batteryStarter relay, left-hand drive vehicles |
| R9 | Relay 1, rear window heating system |
| R10 | Relay 2 for rear window heating with EDW (anti-theft alarm system) Relay for snow plow, low beam on the left |
| R11 | Relay 1, electric step left Snow plow relay, low beam right |
| R12 | Relay 2, electric footrest left Snow plow relay, high beam left |
| R13 | Unloading relay, terminal 15 (2) Snow plow relay, high beam right |
| R14 | Relay 1, windshield heating system |
| R15 | Relay, body manufacturer, terminal 15 |
| R16 | Relay, body manufacturer, terminal 61 (D+) |
| R17 | Equipment relay for retrofitting with a tail liftComfort lighting relay |
| R18 | Headlight cleaner relay |
| R19 | Beacon relay with siren |
| R20 | EDW system relay (anti-theft alarm system), sound signal |
| R21 | Relay for contour/identification lamps (for North American countries) Relay for license plate lamps (delivery operation) Relay for fan, additional air heating, fan level 1 |
| R22 | Fan relay, additional air heating, fan level 2 |
| R23 | Beacon relay with siren Relay, terminal 61 (D+), anti-theft device with vehicle tracking |
| R24 | Relay 1, electric footrest right |
| R25 | Relay 2, electric footrest right |
| R26 | Reverse alarm relay off Anti-theft device relay with vehicle tracking |
Power fuse block
If an additional battery is installed under the seat, an additional high-power fuse block can also be installed.
Scheme
Appointment
| 1 | Reserve |
| 2 | 80A Signal Acquisition and Excitation Module (SAM) / Fuse and Relay Module (SRB) |
| 3 | Reserve |
| 4 | 150A Buffer battery input |
| 5 | 150A SAM (Signal Acquisition and Excitation Module) / SRB (Fuse and Relay Block), Terminal 30 Fuse Block |
| 6 | |
| 7 | |
| 8 | 100A Brake – retarder, combined with battery disconnect relay |
| 9 | 150A Auxiliary battery |
| 10 | 250A Hydraulic pump for driving snow plow, Tail lift, Dump truck |
Scheme
Transcript
| 12 | Reserve |
| 13 | 150A Additional electric heating device (PTC) |
| 80A Rear air conditioning system, reinforced | |
| 14 | 60A Air conditioning fan – cabin without partition or with reinforced air conditioning system in the rear of the vehicle (vehicles with a wheelbase of 3665 mm) |
| 40A Air conditioning fan – cabin with partition or with reinforced air conditioning system in the rear of the vehicle | |
| 40A Air conditioning fan – cabin, open vehicle modification | |
| 70A Electric fan | |
| 15 | Reserve |
| 16 | 100A Retarder, not in combination with battery disconnect relay |
| 150A Battery Disconnect Relay | |
| 17 | Reserve |
| 18 | 300A Generator |
Battery-powered unit
The fuse block in the form of fuse links is located near the battery in the footwell on the left side of the vehicle.
Marking
| 1 | 80A Engine preheating relay |
| 40A Secondary air pump (petrol engine vehicles) | |
| 2 | 80A Engine cooling fan – air conditioning |
| 25A Relay, terminal 15, starter (vehicles with code MI6/XM0; vehicles with buffer battery) | |
| 25A Starter relay, unsupported (vehicles with buffer battery) | |
| 70A Engine cooling fan (vehicles without buffer battery) | |
| 40A Air conditioning fan – cabin (vehicles without buffer battery) | |
| 40A Air conditioning fan – cabin with partition or with reinforced air conditioning system in the rear of the vehicle (vehicles without buffer battery) | |
| 60A Air conditioning fan – cabin with partition or with reinforced air conditioning system in the rear of the vehicle (vehicles with a wheelbase of 3665 mm; vehicles without a buffer battery) | |
| 3 | 80A Signal registration and excitation module / fuse and relay block (vehicles without buffer battery) |
| 4 | 150A Additional battery in the engine compartment, retarder (vehicles without buffer battery) |
| 5 | 150A Terminal 30, fuse blocks, signal registration and excitation module / fuse and relay block (vehicles without buffer battery) |
| 6 | Seat frame support point (jumper) |
| 7 | 150A Auxiliary heater (RTS) (vehicles without buffer battery) |
| 80A Rear air conditioning system, reinforced (vehicles without buffer battery) |
Fuses and relays Mercedes-Benz Sprinter 906 (2006 – 2017). Fuse diagram Mercedes-Benz Sprinter 906 (2006 – 2017).