Mercedes-Benz A-Class w176 (2012-2018) – fuse box diagram
Year of manufacture: 2012, 2013, 2014, 2015, 2016, 2017, 2018.
Lighter fuse (electrical outlet) in Mercedes A-Class w176 (2012-2018). Is fuse 72 in the fuse box in the passenger footwell area.
Fuse box in the engine compartment
| No. | Description | Amps [A] |
| 201 | Alarm siren | 5 |
| 202 | Stationary heater control unit | 20 |
| 203 | LED Reflector: p
Front right reflector |
15 |
| 204 | Electronic Stability Program Control Unit | 25 |
| 205 | Left horn;
Right horn. |
15 |
| 206 | Valid for engine 651:
CDI control unit Valid for engine 607: Power unit control unit |
5 |
| 207 | Refers to Diesel engine:
Relay circuit87M |
5 |
| 208 | Valid for engine 133, 607:
Relay for circuit 87 |
7.5 |
| 209 | LED spotlight:
Front left reflector |
15 |
| 210 | Heated windshield relay;
as of 01.09.2015 ..: Front starter relay. |
5 |
| 211 | Not used | – |
| 212 | Valid for engine 133, 270:
Connecting sleeve, circuit 87M3; Applies to Silnik 651: Heating element of the ventilation line; Heating element for the refrigerant thermostat; Exhaust gas recirculation diverter valve; Refers to Engine 607 (EU5 emission standard): Oxygen sensor before the catalytic converter; Charge pressure positioner; Applies to engine 607 (EU6 emission standard): Oxygen sensor before the catalytic converter; Valid for 607 engine: CDI control unit. |
15 |
| 213 | Valid for motors 133, 270, 651:
Connecting sleeve, circuit 87 M2e; Applies to Engine 607 (EU5 emission standard): Camshaft; Hall Sensor; CDI control unit; Control valve quantity; Applies to engine 607 (EU6 emission standard): Oxygen sensor after catalytic converter; CDI control unit. |
15 |
| 214 | Valid for engines 133, 270, 651:
Connecting sleeve, circuit 87 M4e |
10 |
| 215 | Valid for gasoline engine:
Ignition coil Cylinder 1; Cylinder 2 ignition coil; Cylinder 3 ignition coil; Cylinder 4 ignition coil; Applies to the 651 engine: Quantity control valve Applies to the 607 engine: CDI control unit; Pressure regulator Load; Quantity control valve. |
20 |
| 216 | Valid for gasoline engine:
ME-SFI control unit; Valid for engine 607: Power unit control unit. |
5 |
| 217 | Valid with transmission 724:
W fully integrated box control unit gears with double clutch. |
25 |
| 218 | Electronic Stability Program Control Unit | 5 |
| 219 | Not used | – |
| 220 | Transmission coolant circulation pump | 10 |
| 221 | Not used | – |
| 222 | Not used | – |
| 223 | Not used | – |
| 224 | DISTRONIC electrical controller;
COLISION PREVENTION ASSISTANCE control unit. |
7.5 |
| 225 | Not used | – |
| 226 | Not used | – |
| 227 | Not used | – |
| 228 | Not used | – |
| 229 | Front left light assembly | 5 |
| 230 | Electronic Stability Program Control Unit | 5 |
| 231 | Right Front Light Assembly | 5 |
| 232 | Headlight control unit | 15 |
| 233 | Not used | – |
| 234 | Valid for the 607 engine:
Powertrain Control Unit |
5 |
| 235 | Valid for the 607 engine:
Fan motor; Radiator louvre actuator. |
7.5 |
| Valid for engine 133:
Charge air cooler circulation pump. |
7.5 | |
| 236 | SAM control unit | 40 |
| 237 | Electronic Stability Program Control Unit | 40 |
| 238 | Heated windscreen | 50 |
| 239 | Wiper speed relay 1/2 | 30 |
| 240A | Starter Relay 50 | 25 |
| 240B | Relay circuit 15 (not latched) | 25 |
| 241 | Not used | 7.5 |
| Relay | ||
| J | Horn Relay | |
| K | Wiper speed relay 1/2 | |
| L | Windshield wiper on/off relay switch | |
| M | Starter Relay 50 | |
| N | 87 M circuit relay. | |
| O | ECO start/stop:
Transmission coolant circulation pump relay |
|
| P | Reserve courier (F58kP) | |
| Q | Relay circuit 15 (not latched) | |
| R | Relay Circuit 15 | |
| S | Relay Circuit 87 | |
| T | Heated windscreen relay | |
Fuse box in passenger’s footwell
| No. | Description | Amps [A] |
| 21 | Applies to the diesel engine:
PTC heater |
150 |
| 22 | Additional battery relay for ECO start/stop function | 200 |
| 23 | Front left door control unit | 30 |
| 24 | Front right door control unit | 30 |
| 25 | SAM control unit | 30 |
| 26 | Additional sleeve for ECO start/stop battery connector | 10 |
| 27 | Engine compartment fuse and relay module | 30 |
| 28 | Control unit for the sound generator inside the vehicle | 5 |
| 29 | until 02.11.2014:
Trailer Socket; as of 03.11.2014: Trailer recognition control unit. |
15 |
| 30 | Trailer recognition control unit | 5 |
| 31 | 4MATIC:
Controller four-wheel drive |
5 |
| 32 | Control unit of the direction light module | 5 |
| 33 | Audio Control Panel/COMAND | 5 |
| 34 | ACC control and operation unit | 7,5 |
| 35 | Rear window heating | 40 |
| 36 | Driver’s seat control unit;
Driver’s seat lumbar support adjustment control unit. |
7,5 |
| 37 | Audio/COMAND screen | 7,5 |
| 38 | Control unit for the additional restraint system | 7,5 |
| 39 | Hanging control panel control unit | 10 |
| 40 | Valid for engine 651 (EU6 emission standard):
Power Unit Control Unit |
15 |
| 41 | Control module for sliding panorama roof | 30 |
| 42 | Radio (Audio 5 USB, Audio 20 CD, Audio 20 CD with CD changer);
Control unit COMAND. |
5 |
| Radio (Radio 20, Audio 20 USB) | 25 | |
| 43 | Parking system control unit | 5 |
| 44 | Front left reversible emergency voltage retractor | 40 |
| 45 | Emergency voltage reversible right front retractor | 40 |
| 46 | Front passenger seat control unit;
Control unit for adjusting the lumbar support of the passenger seat. |
7,5 |
| 47 | Navigation module;
iPhone® cradle control unit. |
7,5 |
| Control unit for the adaptive damping system | 25 | |
| 48 | Not used | – |
| 49 | Control unit for iPhone drive kit® | 7,5 |
| COMAND the fan motor | 5 | |
| 50 | Camera lid control unit | 5 |
| 51 | Not used | – |
| 52 | Not used | – |
| 53 | Not used | – |
| 54 | Not used | – |
| 55 | Telematics Service Communication Module KEYLESS-GO control unit |
5 |
| 56 | Control unit of the direction light module | 10 |
| 57 | Lane Assist:
Multifunctional control unit for special purpose vehicle. |
30 |
| Special vehicle:
multifunction control unit vehicle special purpose |
7.5 | |
| 58 | Fuse box for emergency vehicles | 30 |
| 59 | Front passenger seat control | 30 |
| 60 | Driver’s seat control unit | 30 |
| 61 | Sound system amplifier control unit | 40 |
| 62 | You are referring to the 711 gearbox:
Electric steering wheel lock |
20 |
| 63 | Fuel system control unit | 25 |
| 64 | Electronic toll control unit;
Control unit dedicated to short range communication. |
1 |
| 65 | Light bulb in the glove box | 5 |
| 66 | Fuse box for emergency vehicles | 15 |
| 67 | Not used | – |
| 68 | Not used | – |
| 69 | Not used | – |
| 70 | Rear center console socket | 25 |
| 71 | Plug socket | 25 |
| 72 | Front cigarette lighter with ashtray;
Internal vehicle power socket. |
25 |
| 73 | Electric Parking Brake Controller | 30 |
| 74 | Electric Parking Brake Controller | 30 |
| 75 | Trailer recognition control unit | 20 |
| 76 | Trailer recognition control unit | 25 |
| 77 | Trailer recognition control unit | 25 |
| 78 | Fuse box for emergency vehicles | 40 |
| 79 | SAM control unit | 40 |
| 80 | SAM control unit | 40 |
| 81 | Fan Regulator | 40 |
| 82 | Hanging control panel control unit | 10 |
| 83 | Electronic ignition interlock control unit | 7,5 |
| 84 | Upper control panel control unit | 5 |
| 85 | ATA [EDW]/ towing protection/interior protection control unit | 5 |
| 86 | FM, AM and CL Antenna Amplifier [ZV];
as of 01.06.2016: Mobile phone system antenna amplifier/compensator. |
5 |
| 87 | Diagnostic connector | 10 |
| 88 | Instrument cluster | 10 |
| 89 | Outdoor Light Switch | 5 |
| 90 | Smart radar sensor for the left rear bumper;
Smart radar sensor for the right rear bumper. |
5 |
| 91 | Foot pedal action monitoring switch;
Leg light switch. |
5 |
| 92 | Fuel system control unit | 5 |
| 93 | Electric Parking Brake Controller | 5 |
| 94 | Control unit for the additional restraint system | 7,5 |
| 95 | Front passenger seat occupancy recognition and Control unit for the ACSR weight detection system (WSS) |
7,5 |
| 96 | Rear door wiper motor | 15 |
| 97 | Electrical connector for cell phones | 5 |
| 98 | SAM control unit | 5 |
| 99 | Control unit of the tire pressure monitor | 5 |
| 100 | Valid for engine 133:
DIRECT SELECTION INTERFACE |
5 |
| 101 | 4MATIC:
Controller four-wheel drive |
10 |
| 102 | Remote control stationary heater receiver;
Valid for AMG vehicles from 01.09.2015: Transmission mode control unit; as of 01.06.2016: Antenna switch for telephone and stationary heater. |
5 |
| 103 | Control unit for the emergency call system;
Communication module for telematics services; HERMES control unit. |
5 |
| 104 | Multimedia Interface Control Unit
Multimedia Interface Control Unit |
5 |
| 105 | Digital audio broadcasting control unit;
Satellite digital audio broadcasting (SDAR) control unit. |
5 |
| Tuner Module | 7,5 | |
| 106 | Multifunctional camera | 5 |
| 107 | Digital TV Tuner | 5 |
| 108 | until 31.05.2016:
Reversing camera |
5 |
| as of 01.06.2016:
Reversing camera |
7,5 | |
| 109 | Electrical Charging Socket Connector | 20 |
| 110 | COMAND radio controller;
Engine sound controller. |
30 |
| Relay | ||
| A | Relay Circuit 15 | |
| B | Rear wiper relay | |
| C | 15R2 relay circuit | |
| D | Heated rear window relay | |
| E | 15R1 relay circuit | |
| F | 30g relay circuit | |
| G | Not used | |
Front electric fuse box
| No. | Description | Amps [A] |
| 1 | Alternator | 300 |
| 2 | Fuse box inside the vehicle | 200 |
| Applies to the diesel engine:
Inner vehicle fuse box |
250 | |
| 3 | Electric power steering control unit | 100 |
| 4 | SAM control unit | 40 |
| 5 | Fan motor | 80 |
| 6 | Valid for the 607 engine:
Fuel heater control unit |
70 |
| 7 | Valid for engine 607 (EU5 emission standard):
DPF regenerative heating control unit |
125 |
| 8 | Valid for 607, 651 engines:
Light output stage |
100 |
| Relay | ||
| F32k1 | Decoupling Relay | |
