Remove/install power steering pump - AR46.30-P-0500TX

MODEL 219 with ENGINE 272, 273 

Fig 1: Identifying Power Steering Pump Remove/Install Components (1 Of 2)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Power Steering Pump Remove/Install Components (2 Of 2)

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Risk of injury  to skin or eyes caused by hydraulic fluid spraying out under high pressure. Risk of poisoning  caused by swallowing hydraulic fluid Depressurize the hydraulic system completely before starting any work on the system. Wear protective clothing and safety glasses.		AS00.00-Z-0013-01A
	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
	Before opening the hydraulic system of the power steering, thoroughly clean the area surrounding the separation point. Even minute particles of dirt, introduced into the hydraulic components, can result in malfunctions or damage to the power steering
1	Open engine hood and raise to vertical position		AR88.40-P-1000TX
2	Remove poly-V belt		AR13.20-P-0001TS
3	Remove front engine cover
4	Remove left engine intake air duct upstream of air filter
5	Extract oil from power steering reservoir (1)		Figure
6	Detach return line (3) from reservoir (1) of power steering	Use a rag to clear up any escaping oil and seal the line connections using stop plugs .
			*BA46.30-P-1006-01G
			Figure
7	Undo screws (9) for front cover on cylinder head		*BA46.30-P-1016-01G
8	Release clip (10)
9	Remove reservoir (1) of power steering from power steering pump (2)	Replace sealing ring.
10	Detach pressure line (4) of power steering from power steering pump (2), to do so undo banjo bolt (5)	Collect oil which runs out with rags and seal line connections with stop plugs.
		Replace sealing ring.	Figure
			*BA46.30-P-1001-01G
11	Detach plug (12) from power steering pump pressure regulator valve (Y10/1)
12	Detach power steering pump (2) from timing case cover; to do so, remove bolts (11)		*BA46.30-P-1011-01G
13	Raise vehicle		AR00.60-P-1000TX
14	Remove bolts (6), disconnect refrigerant compressor connector (A9x1) and remove refrigerant compressor (A9) from timing case cover and engine support	Engine 272 Put down refrigerant compressor (A9) with pipe system connected towards the radiator.
			*BA83.55-P-1001-01M
15	Detach ground line from power steering pump (2) by unscrewing bolt (7)		*BA46.30-P-1015-01G
16	Remove screw (8)		*BA46.30-P-1011-01G
17	Raise vehicle		AR00.60-P-1000TX
18	Take out power steering pump (2)	On engine 273, take power steering pump (2) out upwards.
19	Install in the reverse order
20	Fill and bleed power steering pump (2)		AR46.30-P-0010TX
21	Check function of power steering and for leaks

POWER STEERING PUMP

Number	Designation			Model 219 with engine 272, 273
BA46.30-P-1001-01G	Banjo bolt, high pressure expansion hose to power steering pump		Nm	45
BA46.30-P-1006-01G	Clamp, hydraulic line to power steering pump reservoir		Nm	2
BA46.30-P-1011-01G	Bolt, power steering pump to timing case cover	M8 x 30	Nm	20
		M8 x 34	Nm	35
BA46.30-P-1015-01G	Bolt, ground line to power steering pump		Nm	20
BA46.30-P-1016-01G	Oil reservoir on timing case		Nm	9

REFRIGERANT COMPRESSOR

Number	Designation		Engine 272	Engine 273
BA83.55-P-1001-01M	Bolt, refrigerant compressor to timing case/crankcase/engine support	Nm	20	20

Fig 3: Identifying Set Of Stop Plugs (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA

Fig 4: Identifying Hand Pump (210 589 00 71 00)

Courtesy of MERCEDES-BENZ USA