Remove/install power steering pump

AR46.30-P-0500TS

Remove/install power steering pump

17.12.08

 

Remove/install

 Danger!

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

 Danger!

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-1000T

2

Remove poly-V belt

AR13.20-P-0001TS

3

Remove front engine cover

 Pull the front engine cover upward and out of the mountings.

4

Remove intake air duct upstream of air filter

5

Suction off oil from expansion reservoir (1)



*210589007100

6

Detach return line (3) from expansion reservoir (1)

 Use a rag to clear up any escaping oil and seal the line connections using stop plugs .



*BA46.30-P-1004-01F



*129589009100

7

Undo screws (9) for front cover on cylinder head



*BA46.30-P-1008-01F

8

Release clip (10)

9

Detach expansion reservoir (1) from power steering pump (2)

 Installation: Replace sealing ring.

10

Detach pressure line (4) from power steering pump (2) by undoing banjo bolt (5)

 Use a rag to clear up any escaping oil and seal the line connections using stop plugs .

 Installation: Replace sealing ring.



*129589009100



*BA46.30-P-1006-01F

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-1001-01F

13

Raise vehicle

AR00.60-P-1000T

14

Remove bolts (6)

Engine 272



*BA83.55-P-1001-01M

15

Detach 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.

16

Detach ground line from power steering pump (2) by unscrewing bolt (7)



*BA46.30-P-1005-01F

17

Remove screw (8)



*BA46.30-P-1001-01F

18

Lower vehicle

AR00.60-P-1000T

19

Take out power steering pump (2)

20

Install in the reverse order

21

Fill and bleed power steering pump (2)

AR46.30-P-0010TS

22

Check function of power steering and for leaks

Number

Designation

Engine
272, 273
in model 211

BA46.30-P-1001-01F

Bolt, power steering pump to timing case cover

M830

Nm

-

M834

Nm

-

M844

Nm

35

BA46.30-P-1004-01F

Hose clamp, hydraulic line to power steering pump expansion reservoir

Nm

3

BA46.30-P-1005-01F

Bolt, ground line to power steering pump

Nm

20

BA46.30-P-1006-01F

Banjo bolt, power steering pressure line to power steering pump

Nm

45

BA46.30-P-1008-01F

Bolt, power steering expansion reservoir to front cover at cylinder head

Nm

9

Number

Designation

Engine 272

BA83.55-P-1001-01M

Bolt, refrigerant compressor to timing case/crankcase/engine support

Nm

20