Remove/Install High-Pressure Pump Drive Gear - AR07.02-P-1021GZB

ENGINE 642 in MODEL 164, 166, 251, 292 

Illustration shows model 164 

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
	Remove/install
1	Removes strut tower brace	Engine 642 in model 164 Remove strut tower brace from strut tower mounts.	AR62.30-P-2500GY
2	Remove high-pressure pump (1) and close off lines with a suitable stop plug	Engine 642 in model 164, 251	AR07.02-P-1020GZB
		Engine 642 in model 166, 292	AR07.02-P-1020OGR
		Record plug	Figure
3	Place counterholder onto drive gear (3) of high-pressure pump (1)	The counterholder must not be tilted. The tooth flanks will be damaged otherwise. Counterholder	Fig 2
4	Unscrew nut (2)	Nut to high-pressure pump drive gear	*BA07.16-P-1020-01C
5	Detach gear (3) for high-pressure pump (1)	Puller	Fig 1
6	Install in the reverse order

Fig 1: Identifying Puller (124 589 04 33 00)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Counterholder (642 589 00 40 00)

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Record Plug (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA