Remove/Install Rear Fuse And Relay Module - AR54.15-P-0001LW

WARNING: This page is about a different car, the 2023 Mercedes-Benz GLC300, 2022 Mercedes-Benz GLC300, 2021 Mercedes-Benz GLC300, 2020 Mercedes-Benz GLC350e, and 2020 Mercedes-Benz GLC300. However, it is still accessible from the selected car via links, so may be relevant.

Model 205

up to model year 2019

Model 253

Shown on model 205.0

Fig 1: Rear Fuse And Relay Module Components Location - Model 253 (Shown On Model 205.0)

Courtesy of MERCEDES-BENZ USA

Shown on model 205.4

Courtesy of MERCEDES-BENZ USA

Courtesy of MERCEDES-BENZ USA

	Risk of injury caused by fingers being jammed or pinched when removing, installing or aligning hoods, doors, trunk lid/rear-end door or sliding roof.	No parts of the body or limbs should be within the operating area when the components are moving.	AS00.00-Z-0011-01A
	Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC)	Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines.	AS00.00-Z-0035-01A
	General information on handling vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system		AH00.00-Z-0300-01A
	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Notes on HANDS-FREE ACCESS		AH80.61-P-0001-01A
	Remove/install
1.1	Fold up and hook rear trunk floor (1).	Model 205.0/1/3 up to model year 2019 except code ME04 (Mild hybrid drive) except code ME06 (Hybrid drive 60 kW variant (incl. plugin)) Model 253
1.2	Remove rear trunk floor (1) or rear load compartment.	Model 205.2 up to model year 2019 except code ME04 (Mild hybrid drive) except code ME06 (Hybrid drive 60 kW variant (incl. plugin)) Model 205.4 up to model year 2019
2	Detach ground line of on-board electrical system battery.		AR54.10-P-0003LW
3.1	Open service flap (2) and push luggage compartment well cover (3) to one side until the rear fuse and relay module (K40/5) is accessible.	Model 205.0/1/2 up to model year 2019 except code ME04 (Mild hybrid drive) except code ME06 (Hybrid drive 60 kW variant (incl. plugin)) Model 205.3 up to model year 2019
3.2	Remove luggage compartment well cover (3).	Model 205.4 up to model year 2019 Model 253
4.1	Release housing (4) with rear fuse and relay module (K40/5) and remove from holder (5).	Model 205.0/1/2/3 up to model year 2019 Model 253
4.2	Unscrew Screw (14), pull housing (4) with rear fuse and relay module (K40/5) forward out of mounts (arrows) of holder (5) and remove.	Model 205.4 up to model year 2019
5	Turn over housing (4) with rear fuse and relay module (K40/5) and remove Screw s (6).
6	Unclip rear fuse and relay module (K40/5) from housing (4) using a suitable tool on the catch hooks (7) and remove housing (4).
7	Remove cable ties (8).	: Replace cable ties (8).
8	Unclip fuse holders (9, 10) and place to one side.	The number of fuse holders (9, 10) may vary depending on the vehicle equipment.
9	Disconnect electrical connectors (11) at rear fuse and relay module (K40/5).	The number of electrical connections (11) may vary, depending on the vehicle equipment involved.
10	Unscrew nut (12) and place electric line to one side.	Nut, positive line to rear fuse and relay module	*BA54.15-P-1001-01K
11	Unscrew nut (13) and place electric line to one side.	If installed. Nut, positive line to rear fuse and relay module	*BA54.15-P-1001-01K
12	Remove rear fuse and relay module (K40/5).
13	Change all fuses and relays.	When replacing the rear fuse and relay module (K40/5).
14	Install in the reverse order

FUSE AND RELAY BOX

Number	Designation			Model 205	Model 253
BA54.15-P-1001-01K	Nut, positive line to rear fuse and relay module	M6	Nm	8	8
BA54.15-P-1001-01K	Nut, positive line to rear fuse and relay module	M8	Nm	16	16