Mercedes-Benz Sprinter Classic W909 was produced in 2013, 2014, 2015, 2016, 2017 and 2018 in Russia. The most popular diesel engines were 311 and 411 cdi . In this material we will present a description of the fuses and relays of the Mercedes Sprinter Classic with block diagrams, their locations and photo examples of execution. We will highlight the cigarette lighter fuse.

The design of the blocks and the purpose of their elements may differ from those presented and depend on the year of manufacture and the level of electrical equipment.
Blocks in the cabin
Block under the steering wheel
At the bottom of the instrument panel, behind a protective cover, there is a fuse and relay block.


Description
| A12f1 | Parking and side lights on the right |
| A12f2 | Right high beam |
| A12f3 | Left high beam, headlight high beam indicator |
| A12f4 | Reverse light |
| A12f5 | Stop signal |
| A12f6 | Wiper motor |
| A12f7 | Audible signal, relay electrical circuit terminal 15 |
| A12f8 | Interior lighting, cigarette lighter , radio, terminal 30 |
| A12f9 | Hazard warning light switch, parking light |
| A12f10 | Front panel illumination, license plate light |
| A12f11 | Parking and side light on the left |
| A12f12 | Right dipped beam |
| A12f13 | Left dipped beam, rear fog light |
| A12f14 | Not used |
| A12f15 | Radio receiver, terminal circuit 15 |
| A12f16 | CDI control unit, terminal 30 |
| A12f17 | CDI control unit, terminal 30 |
| A12f18 | Ignition, terminal 15 |
| A12f19 | Not used |
| A12f20 | Air conditioner control panel, terminal 30 |
| A12f21 | Heating system fan, terminal 30 |
| Relay | |
| A12k1 | Turn signal relay |
| A12k2 | Slag cleaner relay |
| A12k3 | CDI relay |
Fuse number A12f8 is responsible for the operation of the cigarette lighter.
Blocks under the driver’s seat
Fuse and relay block
Option 1
From the driver’s side of the vehicle, behind the protective cover, there is another block with fuses and relays.
Scheme

Marking
| Block 9.1 | |
| F7 | ESP, terminal 30 |
| F11 | Combination of devices |
| F900 | Terminal 30 |
| F85 | Daytime running lights, terminal 30 |
| F43 | Radio remote control |
| F112 | Central locking system, terminal 30 |
| F100 | Central locking system, terminal 30 |
| F44 | Central locking systems |
| F101 | Additional liquid heater |
| Block 9.2 | |
| F115 | Terminal D+ |
| F158 | Fuel pump |
| F300 | Interior lighting |
| F70 | Relay electrical circuit terminals D+ |
| F114 | Additional heat exchanger |
| F110 | Trailer socket |
| F155 | Additional heater |
| F143 | Additional liquid heater |
| F19 | Additional turn signal module II |
| Block 9.3 | |
| F116 | Terminal 30 |
| F117 | Terminal 15 |
| F180 | Terminal 30 |
| F52 | Front passenger door window regulator |
| F53 | Driver’s door window regulator |
| F54 | Heated and adjustable exterior rear-view mirrors |
| F86 | Daytime running lights, terminal 15 |
| F87 | Left headlight |
| Block 9.4 | |
| F88 | Right headlight |
| F89 | Relay terminals 87 (1) |
| F90 | Relay terminals 87 (2) |
| F91 | Relay terminals 87 (3) |
| F128 | Driver’s seat heating |
| F139 | Additional liquid heater |
| F150 | Roof fan |
| F163 | Tachograph, terminal 30 |
| F164 | Tachograph, terminal 15 |
| Block 9.5 | |
| F5 | ESP |
| F119 | Additional air conditioning fan |
| F6 | ESP, terminal 30 |
| Relay | |
| K26 | Relay terminals D+ |
| K61 | Starter relay |
| K87 | Relay terminals 87 |
Option 2
Scheme

Description
| 9.1 | |
| 1 | F158 10A Diesel engine, engine components/control unit |
| 2 | F180 10A Diesel engine, engine components/control unit |
| 3 | F19 10A Additional turn signal flashing module |
| 4 | F43 10A Immobilizer transponder |
| 5 | F85 10A Daytime running light |
| 6 | F70 15A Relay D+ |
| 7 | F143 25A Additional heater |
| 8 | Reserve |
| 9 | F44 25A Central locking system |
| 9.3 | |
| 19 | F115 10A Body manufacturer, D+ |
| 20 | F117 15A Body manufacturer, clamp 15 |
| 21 | F116 25A Body manufacturer, clamp 30 |
| 22 | F150 15A Ceiling Fan |
| 23 | F114 25A Additional heat exchanger |
| 24 | F163 7.5A Tachograph |
| 25 | F164 7.5A Tachograph |
| 26 | F139 10A Additional heating system |
| 27 | F54 10A Exterior rear-view mirrors |
| 9.4 | |
| 28 | F98 10A Fan relay, fan stage 1 |
| 29 | F128 15A Driver’s seat heating system |
| 30 | Reserve |
| 31 | F155 25A Additional water heating |
| 32 | F52 25A Window regulators |
| 33 | F53 25A Window regulators |
| 34 | Reserve |
| 35 | F110 15A Trailer Power Socket |
| 36 | F300 10A Ceilings |
Relay block
Some additional relays may be installed under the driver’s seat.


Appointment
| K37 | Horn relay |
| K39 | Fuel pump relay |
| K52 | Battery disconnect relay |
| K55 | Left dipped beam cut-off relay |
| K68 | Daytime running light relay |
| K69 | Daytime running light relay |
| K70 | Relay terminals 15 |
| K74 | Relay terminals 15 |
| K77 | Auxiliary air conditioning fan relay |
| K78 | Relay terminals D+ |
| K79 | Relay terminals 15 |
| K95 | Right dipped beam cut-off relay |
| K101 | Central locking system relay, left turn signal |
| K102 | Central locking system relay, right turn signal |
| K141 | Rear fog lamp relay |
| K900 | Cigarette lighter relay |
Block under the hood
In the engine compartment, a high-power fuse block in the form of fusible links is attached to the positive terminal.

Transcript
| F140.1 | Battery disconnect relay, terminal 30 |
| F140.2 | Terminal 15, relay el. lances terminals 30 |
| F140.3 | Terminal 30 |
| F140.4 | Rooftop air conditioner, terminal 30 |
| F140.5 | Pre-heating, terminal 30 |
| F140.6 | Central electrical equipment module, tachograph terminal 30 |