Mercedes-Benz A-Class W177 / V177 (2018-2021) – fuse box
Mercedes-Benz A-Class W177 / V177 – fuse box diagram
Year of production: 2018, 2019, 2020, 2021.
Engine compartment
| Number | Description |
| 1 | |
| 2 | |
| 3 | |
| 4 | |
| 5 | |
| 6 | |
| 7 | |
| 8 | |
| 9 | |
| 10 | |
| 11 | |
| 12 | |
| 13 | |
| 14 | |
| 15 | |
| 16 | |
| 17 | |
| 18 | |
| 19 | |
| 20 | |
| 21 | CBC;
SAM; Headlights. |
| 22 | Headlights |
| 23 | ESP;
Parking brake. |
| 24 | ESP;
Parking brake. |
| 25 | |
| 26 | Engine electronics |
| 27 | Diagnostics;
Engine electronics. |
| 28 | Engine electronics |
| 29 | Diesel engine;
Engine electronics. |
| 30 | Hybrid;
Engine electronics. |
| 31 | Hybrid;
Engine electronics. |
| 32 | |
| 33 | |
| 34 | |
| 35 | |
| 36 | |
| 37 | |
| 38 | |
| 39 | |
| 40 | CBC;
SAM; Headlights. |
| 41 | Engine electronics |
| 42 | CBC;
SAM; Horn. |
| 43 | Automatic Transmission;
Engine electronics. |
| 44 | |
| 45 | Automatic Transmission |
| 46 | Hybrid |
| 47 | Distronic;
FCW. |
| 48 | Headlights |
| 49 | Automatic Transmission |
| 50 | Hybrid |
| 51 | Automatic Transmission |
| 52 | Heating and air conditioning system |
| 53 | Hybrid |
| 54 | Engine electronics |
| 55 | Engine electronics |
| 56 | Engine electronics |
| 57 | Automatic Transmission;
Hybrid; Diesel engine. |
| 58 | |
| 59 | |
| 60 | |
| 61 | Hybrid |
| 62 | |
| 62 | |
| 63 | CBC;
SAM; Hybrid. |
| 64 | Headlights |
| 65 | driving school |
| 66 | Hybrid |
| 67 | Diesel engine |
| 68 | CBC;
SAM. |
| 69 | Engine electronics |
| 70 | Distronic;
FCW. |
| 71 | Engine electronics |
| 72 | ESP;
Parking brake. |
| 73 | Starter |
| 74 | Starter |
| 75 | Starter |
| 76 | Hybrid |
| 77 | |
| 78 | ESP;
Parking brake; Hybrid. |
Passenger footwell
| Number | Description |
| 101 | |
| 102 | Hybrid |
| 103 | Heating and air conditioning system |
| 104 | Radio |
| 105 | 4-wheel drive, AMG;
Diesel engine. |
| 106 | Central lock |
| 107 | Distronic;
FCW. |
| 108 | Emergency call system |
| 109 | MBUX;
Navigation; Steering wheel. |
| 110 | Diagnostics |
| 111 | Instrument cluster |
| 112 | Seatbelts;
Airbags. |
| 113 | Sliding roof |
| 114 | Throttle adjustment |
| 115 | Seatbelts;
Airbags. |
| 116 | The driver’s seat;
Passenger seat. |
| 117 | Center console or 115 / 230V socket |
| 118 | |
| 119 | Seatbelts;
Airbags. |
| 120 | |
| 121 | Rear window heating |
| 122 | |
| 123 | Power socket;
USB. |
| 124 | Lighter;
Front power socket. |
| 125 | Power socket;
USB. |
| 126 | |
| 127 | |
| 128 | |
| 129 | Alarm |
| 130 | |
| 131 | Radio |
| 132 | Electronic ignition lock;
Steering wheel lock. |
| 133 | |
| 134 | 4-wheel drive, AMG. |
| 135 | Diesel engine |
| 136 | The driver’s seat;
Passenger seat |
| 137 | |
| 138 | The driver’s seat;
Passenger seat |
| 139 | 4-wheel drive, AMG. |
| 140 | Control module under the ceiling |
| 141 | |
| 142 | Rotary light switch |
| 143 | Heating and air conditioning system;
Control panel. |
| 144 | Control panel;
MBUX; Navigation; Steering wheel. |
| 145 | MBUX;
Navigation; Steering wheel. |
| 146 | MBUX;
Navigation; Steering wheel. |
| 147 | |
| 148 | MBUX;
Navigation; Steering wheel. |
| 149 | 4-wheel drive, AMG. |
| 150 | |
| 151 | Hybrid |
| 152 | Instrument cluster;
MBUX; Navigation; Steering wheel; Radio. |
| 153 | Hybrid |
| 154 | Door functions |
| 155 | Hybrid |
| 156 | Door functions |
| 157 | |
| 158 | CBC;
SAM; External lighting; Emergency lights. |
| 159 | Fuse pump |
| 160 | Electronic ignition lock;
Steering wheel lock. |
| 161 | Door functions |
| 162 | |
| 163 | Door functions |
| 164 | |
| 165 | CBC;
SAM; External lighting; Emergency lights. |
| 166 | Heating and air conditioning system;
ETC; DSRC card reader (Japan). |
| 167 | Central lock;
Tire pressure monitoring (TPMS). |
| 168 | MBUX;
Navigation; Steering wheel. |
| 169 | Distronic;
FCW; External lighting; Emergency lights; MBUX; Navigation; Steering wheel. |
| 170 | Lighter;
Front power socket; MBUX; Navigation; Steering wheel. |
| 171 | Parktronic system |
Trunk
| Number | Description |
| 201 | Power socket, trunk;
Taxi. |
| 202 | Towbar |
| 203 | |
| 204 | |
| 205 | Taxi |
| 206 | |
| 207 | Taxi |
| 208 | Towbar |
| 209 | Towbar |
| 210 | Towbar |
| 211 | Towbar |
| 212 | |
| 213 | |
| 214 | |
| 215 |