Remove/Install Emergency Engine Start Relay - AR54.10-P-0137SG

Model 223 

with code Z07 (B7 armoring on special protection version) 

with code Z61 (Auxiliary battery for emergency start) 

Fig 1: Emergency Engine Start Relay Components Location - Model 223 With Code Z07, Z61

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
	Notes on HANDS-FREE ACCESS		AH80.61-P-0001-01A
	Remove/install
1	Remove additional battery.	Model 223 with engine 279 with code Z07 (B7 armoring on special protection version) with code Z61 (Auxiliary battery for emergency start) except code 200 (Conditionally automated driving) except code 503 (Remote-controlled parking) except code ME10 (Hybrid vehicle (plug-in, PHEV))	AR54.10-P-0007SG
2	Release cover cap (1) and remove.
3	Remove electric lines (2) from emergency engine start relay (K53/12).	Nut electrical line to emergency engine start relay	*BA54.10-P-1014-01N
4	Remove nuts (3) and pull out screws (4).
5	Remove and take out emergency engine start relay (K53/12) from holder (5).
6	Install in the reverse order.