Remove/Install Front Pre-Fuse Box - AR54.15-P-1330MFA

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Model 118, 177, 243, 247

Fig 1: Front Pre-Fuse Box Components Location - Model 118 (Shown On Model 177)

Courtesy of MERCEDES-BENZ USA

Shown on model 177

Courtesy of MERCEDES-BENZ USA

Courtesy of MERCEDES-BENZ USA

Shown on model 177

Notice	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Notes on safety-relevant components		AH00.00-Z-0019-01A
	Remove/install
1	Detach ground line of on-board electrical system battery.		AR54.10-P-0003MFA
2	Remove bolts (1).
3	Unclip cable of engine hood catch from cover (2).
4	Unclip cover (2) at catch hooks and remove.
5	Remove nut (3) and position electric line outside working area.	Model 118, 177, 247 Nut, positive line to pre-fuse box	*BA54.15-P-1001-01M
		Model 243 Nut, positive line to engine compartment pre-fuse box	*BA54.15-P-1006-02B
6	Remove nut (4).	Model 118, 177, 247 Nut, positive line to pre-fuse box	*BA54.15-P-1001-01M
		Model 243 Nut, positive line to engine compartment pre-fuse box	*BA54.15-P-1006-02B
7	Remove retaining clamp (5) with electric line (6).	Do not kink or stretch the electric lines. Otherwise damage will occur.
8	Remove screws (11).
9	Remove screw (7) from engine compartment fuse and relay module (F152/3).
10	Pull engine compartment pre-fuse box (F150/3) out of guides, then lift and swivel far enough until nuts (8) are accessible.	Do not kink or stretch the electric lines. Otherwise damage will occur.
11	Disconnect cable tie from electric line (12).	: Replace cable tie.
12	Remove nut (13).	Model 118, 177, 247 Nut, positive line to pre-fuse box	*BA54.15-P-1001-01M
		Model 243 Nut, positive line to engine compartment pre-fuse box	*BA54.15-P-1006-02B
13	Remove electric line (12) from engine compartment pre-fuse box (F150/3) and position outside working area.
14	Disconnect cable ties from electric lines (10).	: Replace cable ties.
15	Remove nuts (8).	The number of electric lines (10) varies depending on the vehicle equipment. Model 118, 177, 247 Nut, positive line to pre-fuse box	*BA54.15-P-1001-01M
		Model 243 Nut, positive line to engine compartment pre-fuse box	*BA54.15-P-1006-02B
16	Remove electric lines (10) from engine compartment pre-fuse box (F150/3) and remove engine compartment pre-fuse box (F150/3).	: Ensure that guides (9) are seated correctly. The electric lines (10) are coded and they cannot be swapped. The number of electric lines (10) varies depending on the vehicle equipment.
17	Install in the reverse order.

FUSE AND RELAY BOX

Number	Designation			Model 118	Model 177
BA54.15-P-1001-01M	Nut, positive line to pre-fuse box	M6	Nm	8	8
BA54.15-P-1001-01M	Nut, positive line to pre-fuse box	M8	Nm	16	16

FUSE AND RELAY BOX

Number	Designation			Model 247
BA54.15-P-1001-01M	Nut, positive line to pre-fuse box	M6	Nm	8
BA54.15-P-1001-01M	Nut, positive line to pre-fuse box	M8	Nm	16

FUSE AND RELAY MODULE

Number	Designation			Model 243
BA54.15-P-1006-02B	Nut, positive line to engine compartment pre-fuse box	M6	Nm	8
BA54.15-P-1006-02B	Nut, positive line to engine compartment pre-fuse box	M8	Nm	16