MB A-Class (W177) | 2019-2022

Explore Mercedes-Benz A-Class fuse box diagrams for 2019–2022 models with fuse locations, panel layouts, and detailed electrical system information for petrol, diesel, and AMG variants. This article covers the fourth-generation pre-facelift Mercedes-Benz A-Class (Model Code: W177), available from 2019, and includes fuse box diagrams for Mercedes-Benz A-Class 2019, 2020, 2021 and 2022 (Models: A160, A180, A200, A220, A250, A180d, A200d, A220d, A35 AMG and A45 AMG), along with details about the location of the fuse panels inside the vehicle and a clear explanation of the assignment of each fuse (fuse layout).

Engine Compartment

Fuse Box Location

The fuse box is located on the driver’s side. To open it, unscrew bolts (1), then press the clips (2) and remove the cover.

Fuse Box Diagram

Fuses

Assignment of the fuses in the engine compartment

Fuse Data
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No.AmpsDescription
2130ALamps (front left)
2220ALamps (front right)
2340AElectric parking brake, ESP
2460AElectric parking brake, ESP
2715ADiagnosis, Motor electrics/emission control
4030ALamps (front right)
4110AM608/M260/M282: Motor electrics/emission control
5AM654/M139: Motor electrics/emission control
4230ACBC/SAM, Fanfare horn
4310AAutomatic transmission
4430ATrailer hitch, Windshield wipers front, Rains sensor
4520AAutomatic transmission
477.5ADistronic/FCW
4820ALamps (front left)
4920A7-G + M282/M608: Automatic transmission
4925A7-G + M260: Automatic transmission
505AHybrid
5120AAutomatic transmission
537.5AHybrid: A/C system/heater
20Anon Hybrid: A/C system/heater
5410AMotor electrics/emission control
557.5AMotor electrics/emission control
5620AAMG: Motor electrics/emission control
5Anon AMG: Motor electrics/emission control
5710AAutomatic transmission, Motor electrics/emission control
58Motor electrics/emission control
635AHybrid
655ADriving School, Socket, load compartment, special vehiculas
665AA/C system/heater
675AMotor electrics/emission control
685ACBC/SAM
695AMotor electrics/emission control
707.5ADistronic/FCW
725AESP
755ASpecial
7640AHybrid
785AESP

Passenger Compartment

Fuse Box Location

The fuse box is located on the passenger side beneath the mat. To access it, fold the mat back (1) in the direction of the arrow, then loosen the bolts (2) and remove the block cover.

Fuse Box Diagram

Fuses

Assignment of the fuses in the passenger compartment

Fuse Data
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No.AmpsDescription
10340AA/C system / heater
10430ARadio system
10540AMotor electrics / Emission control
10630ATilting/Sliding roof
107Distronic / FCW
1085AEmergency call system, Multi-media box, Telephone system, Navigation, Multi-function steering wheel
10915ADiagnosis
1117.5AInstrument cluster
1127.5AAirbag System
11330AWindshield wipers rear
114Damper adjustment
115Airbag System
1167.5ASeat driver, Seat passenger
117Central console or 115/230V socket
119Airbag System
12140AHeated rear windows
12310APower socket / USB
12420ACigar lighter / socket front
12510APower socket / USB
12910AAnti-theft alarm system
1315ARadio system
1327.5AElectronic Ignition
13515AMotor electrics / Emission control
13630ASeat driver, Seat passenger
13830ASeat driver, Seat passenger
13920A4-Wheel drive
14015AOverhead control panel
1427.5ARotary light switch
1437.5AControl panel
1445AControl panel, Multi-media box, Telephone system, Navigation, Multi-function steering wheel
14510AMulti-media box, Telephone system, Navigation, Multi-function steering wheel
1485AMulti-media box, Telephone system, Navigation, Multi-function steering wheel
15225AInstrument cluster, Multi-media box, Telephone system, Navigation, Multi-function steering wheel
15430ADoor functions
15630ADoor functions, Power window front
15830AExterior lighting, Hazard warning flashers / ECO
15925AFuel pump
16010ASteering column lock
16130ADoor functions
16215AA/C system / heater
16330ADoor functions, Power window front
16530AExterior lighting, Hazard warning flashers / ECO
166A/C system / heater, DTC/DSRC Card Reader (Japan)
1675ACentral locking
168Multi-media box, Telephone system, Navigation, Multi-function steering wheel
1697.5ADistronic / FCW, Exterior lighting, Hazard warning flashers / ECO, Multi-media box, Telephone system, Navigation, Multi-function steering wheel, Trailer hitch, Windshield wipers front, Rain sensor
17010ACigar lighter / socket front, Multi-media box, Telephone system, Navigation, Multi-function steering wheel
1717.5AParktronic system

Luggage Compartment

Fuse Box Location

Raise the trunk floor lid to access the luggage compartment fuse box.

Fuse Box Diagram

Fuses

Assignment of the fuses in the trunk

Fuse Data
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No.AmpsDescription
20125ATaxi: Socket, load compartment, special vehiculas
5AHandicap: Socket, load compartment, special vehiculas
20225ATire pressure monitoring system
20340ARemotetrunk opening/closing
204Socket, load compartment, special vehiculas
20525ASocket, load compartment, special vehiculas
2075ASocket, load compartment, special vehiculas, Steering lock, Taxi
20820ATire pressure monitoring system
20930ATire pressure monitoring system

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