MB GL-Class (X166) | 2013-2019

Browse Mercedes-Benz GL-Class fuse box diagrams for 2013–2019 models with fuse locations, panel layouts, and detailed electrical system information for all variants. This article covers the second-generation Mercedes-Benz GL-Class (Model Code: X166), available from 2013, and includes fuse box diagrams for Mercedes-Benz GL400, GL450, GL550, GL320, GL350 and GL63 AMG (2013, 2014, 2015, 2016, 2017, 2018 and 2019), 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 situated on the passenger side of the engine compartment. To access it, open the brackets (2) and remove the cover (1) in the direction indicated by the arrow.

Fuse Box Diagram

Fuses

Assignment of the fuses in the engine compartment

Fuse Data
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No.AmpsDescription
20220AAuxiliary heater heater
2035AAlarm Siren
20425AElectronic motion stabilization control unit
20515ALeft horn, Right horn
206—–
207—–
208—–
209—–
210—–
211—–
212—–
2137.5AEngines 642, 651: CDI control unit
Engine 157, 276, 278: ME control unit
21415AEngine 157, 276, 278: ME control unit
Engine 651: CDI control unit
BlueTEC: Nox sensor control unit
21515AEngine 157, 276, 278: Electrical plug connection engine/engine compartment (pin 7)
Engine 642: Electrical plug-in connection for motor/engine compartment (pin 7) via terminal 87 D3 cable gland, Radiator shutter actuator
Engine 651: Electrical plug connection engine/engine compartment (pin 7), Radiator shutter actuator
21615AEngine 157, 276, 278: Cable termination, terminal 87D2
Engine 642: CDI control unit, Electrical plug connection engine/engine compartment (pin 6), Adjustable left engine mount, Adjustable right engine mount
Engine 651: Fan motor, CDI control unit, Electrical plug connection engine/engine compartment (pin 6), Adjustable engine mount, left (Y123) Adjustable engine mount, right
21720AEngine 157, 276, 278: Electrical plug connection engine/engine compartment (pin 5)
Engines 642, 651: CDI control unit, Electrical plug connection engine/engine compartment (pin 5)
218—–
21910AEngine 278, 157: Charge air cooler circulation pump
220—–
221—–
222—–
223—–
224—–
225—–
226—–
227—–
228—–
2297.5AFront left headlight
2305AControl unit for electronic stability control
2317.5AFront right headlight
23215AFully integrated gearbox control unit
Vehicles without “ECO Start-Stop” function: Additional transmission oil pump control unit
23315AHeadlight control unit
2345AElectrical control module DISTRONIC
23520AHeated wiper blades
236—–
23730AKP 722.9: Servo drive module for automatic transmission for DIRECT SELECT system
23840ACompressor AIRMATIC
23930AWiper motor
240 A30AVehicles without “ECO Start-Stop” function: Starter
240 B30AVehicles with “ECO Start-Stop” function: Engine compartment power fuse box

Dashboard

Fuse Box Location

The fuse box is located at the edge of the instrument panel on the passenger side. To access it, pull the cover (1) in the direction indicated by the arrow, then remove it.

Fuse Box Diagram

Fuses

Assignment of the fuses in the passenger compartment (Dashboard)

Fuse Data
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No.AmpsDescription
107.5AElectronic ignition lock control unit
1110ASteering column electronic module control unit
125AInstrument cluster
1315AAuxiliary fan electronic control
145ADiagnostic connector
155AUpper control box
1915AClimate Control Panel
205ASteering column electronic module control unit
217.5AAudio/ COMAND display

Battery Compartment

Fuse Box Location

The fuse box is located in the battery compartment beneath the front passenger seat. To access it, slide the seat forward and open the lid from the rear passenger compartment.

Fuse Box Diagram

Fuses

Assignment of the fuses in the battery compartment

Fuse Data
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No.AmpsDescription
3040ASpeaker amplifier control unit
30AWoofer Amplifier
3140AEngine compartment fuse and relay module
3240AFan regulator
3340AFront left reversible seat belt pretensioner
3440ARear fuse box
3540AFront right seat belt reversible pretensioner
3640AFuse box, terminal 30, front panel
3740ATest lead
4025AElectronic rear air conditioning fan control
455ADigital tachograph control unit
4710ASpeaker amplifier control unit
4830ARear compartment systems control unit
495AEDW/Tow protection/Interior monitor control unit
505AEmergency call system control unit
515AAntenna amplifier FM 1, AM, ZV and KEYLESS-GO
5230AFront right door control unit
5315ACeiling control box
54Test lead
5530ARear compartment systems control unit
5615AKeyLess-Go control unit
5730ARear right door control unit
5830ATransfer box control unit
597.5AControl unit for passenger restraint system (Supplemental Restraint System)
607.5ACeiling control box
6215AAIRMATIC control unit
6320APanoramic sliding sunroof control module, Sliding sunroof control module
6430AAir pump for multi-contour seat
6530AFuse box, terminal 30g, front panel
6730AElectric parking brake control unit
6830AElectric parking brake control unit
MF1-1Audio module/COMAND system control panel
MF1-2Bottom Control Panel, Off-road driving mode control panel
MF1-3Parking assistance control unit
MF1-4Control unit for electronic stability control
MF1-5SAM control unit
MF1-6Speaker amplifier control unit
MF2-1HBF control unit
MF2-2Tire pressure monitoring control unit
MF2-3Digital audio broadcasting control unit, Satellite Digital Audio Radio (SDAR) control unit
MF2-4Multi-function camera
MF2-5Multimedia interface control unit
MF2-6Rear View Camera, 360° camera control box
MF3-1Rear left display
MF3-2Rear right display
MF3-3TV tuner (analog/digital), Digital TV tuner
MF3-4DVD player
MF3-5Control unit for video and radar sensors

Rear Passenger Compartment

Fuse Box Location

The fuse box is positioned beneath the left rear seat. Fold the rear seat forward, hold the side recesses (2) on the cover (1), tilt the cover in the arrow’s direction, and remove it.

Fuse Box Diagram

Fuses

Assignment of the fuses in the rear passenger compartment (Under the seat)

Fuse Data
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No.AmpsDescription
1005AAudio module, COMAND control module, Electrical plug connection for external navigation
10120ATrailer detection control unit
1027.5ADriver’s seat control unit
1037.5AFront passenger seat control unit
1045AAntenna Amplifier / Mobile Phone Compensator, Bluetooth module
1055AHolder for navigation module
1065ATailgate control unit
10710ARelease module, 2nd row of seats. left; Release module, 2nd row of seats, right
1105AAdBlue control unit
11115ATrailer socket
1125AFuel pump control unit
1135AElectric parking brake control unit
1145ASwitch for exterior lighting
1155ATrailer detection control unit
1165ATermination of terminal 87 of the radar control unit, Collision Prevention Assist control module
1175ANight vision control unit
1195ATransfer case control unit
1205AFuel quality sensor, Digital tachograph control unit
12430AElectrical plug connection for the Elektric Brake Control function
12615ATrailer recognition control unit
12730ADriver seat control unit
12820ATrailer recognition control unit
12930AFront passenger seat control unit
13020ATrailer recognition control unit
13225AFuel pump control unit
1335ARadio remote control receiver for auxiliary heater
1345ASeat occupied recognition pressure sensor, Occupancy recognition and AKSE, front passenger seat
1355AGlove box light
1367.5AControl unit for passenger restraint system (Supplemental Restraint System)
1375AElectric fuse preparation for installation of the Electronic Toll Collection system, Electronic equipment rear view camera, Electrical plug connection for external navigation
13815AActive roll stabilization control unit
1407.5AAdBlue control unit
14115AAdBlue control unit
14220AAdBlue control unit
1457.5ACup holder
14630ARear window notch filter
14730AAudio module, COMAND control module
14815ACigarette lighter heating element, Detachable cup holder connection
1495ASocket 115 V
15020ASocket in trunk
15120ASocket, 2nd seat row, left; Socket in the 2nd row of seats on the right
15230ARear compartment systems control unit
15325AAC/DC converter control unit
15440ATailgate control unit
15715ATailgate wiper motor

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