Remove/install vacuum pump - AR43.05-P-1320CD

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MODEL 166, 172, 204, 207, 212, 218, 221 with ENGINE 651

Fig 1: Remove/Install Vacuum Pump Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Risk of death caused by vehicle slipping or toppling off of the lifting platform.	Align vehicle between columns of vehicle lift and position four support plates at vehicle lift support points specified by vehicle manufacturer.	AS00.00-Z-0010-01A
	Risk of injury caused by fingers being pinched or crushed when removing, installing or aligning hoods, doors, trunk lids, liftgates or sliding roof	Keep body parts and limbs well clear of moving parts.	AS00.00-Z-0011-01A
	Risk of injury to skin and eyes caused by handling hot or glowing objects.	Wear safety gloves, protective clothing and safety glasses, if necessary.	AS00.00-Z-0002-01A
	Notes on avoiding damage through contamination and foreign objects		AH00.00-P-5000-01A
1	Open engine hood and raise to vertical position	Models 204.0/2/9, 218, 221
		MODEL 166.0	AR88.40-P-1000GQ
		Model 172.4	AR88.40-P-1000V
		Models 204.3, 207, 212	AR88.40-P-1000EW
2	Remove cylinder head cover trim
3	Remove the throttle valve actuator		AR09.41-P-1321CD
4.1	Remove corresponding underfloor paneling	MODEL 166.0 Only install underfloor paneling after the engine test run and leak test.	AR61.30-P-1001GQ
4.2	Remove bottom part of noise encapsulation	Model 172.4	AR94.30-P-5300W
4.2	Remove bottom part of noise encapsulation	Models 204.0/2/3, 207, 212, 218 Only install bottom section of soundproofing after the engine test run and leak test.	AR94.30-P-5300EW
4.3	Remove lower engine compartment paneling	Model 204.9	AR61.20-P-1105CY
4.3	Remove lower engine compartment paneling	Model 221 except CODE (Z07) Top protection Only install engine casing after the engine test run and leak test.	AR61.20-P-1105SX
5	Remove charge air temperature sensor		AR09.41-P-2002CD
6	Remove engine charge air duct downstream of charge air cooler		AR09.41-P-8624CD
7	Release and detach vacuum line (1)
8	Remove bolts (2)		*BA43.05-P-1001-01J
9	Remove vacuum pump (3)	Fit vacuum pump (3) on shaft of oil pump (4). Replace seal (5).
10	Install in the reverse order
11	Erase fault code memory using STAR DIAGNOSIS.		AD00.00-P-2000-04A
	Checking
	Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the engine as it is running	Secure vehicle to prevent it from moving by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.	AS00.00-Z-0005-01A
12	Perform an engine test run; check brake system for function and leaktightness		AS00.00-Z-0005-01A

VACUUM PUMP

Number	Designation		Engine 651
BA43.05-P-1001-01J	Bolt, vacuum pump to cylinder crankcase or oil pump	Nm	9