Power steering - Replace steering gear oil filter

AP46.25-P-0100A

Power steering - Replace steering gear oil filter

03.07.2020

Model

190

with code M032 (Black Series version)

7

Steering filter

10

Left air ducting

3

CLIC clamp

4

Flow direction

5

Bracket

7

Steering filter

8

CLIC clamp

6

Oil line

7

Steering filter

9

Oil line

1

Cap

2

Expansion reservoir

1a

Oil dipstick

 Warning

Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.

Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

 Warning

Risk of injury to skin or eyes from hydraulic fluid spraying out under pressure.Risk of poisoning from swallowing hydraulic fluid.

Depressurize hydraulic system completely before starting any work on it. Wear protective clothing and safety glasses.

AS00.00-Z-0013-01A

Topical note

Notes on working in engine compartment

AH60.00-P-0042-01RG

Preparatory activity

1

Attach front cover for magnesium radiator cross member.



000 588 04 98 00 Cover

WS98.00-P-0005B


When working in the engine compartment, the front cover for the magnesium radiator cross member must be fitted into place to protect the magnesium radiator cross member.
Otherwise, the surface coating on the radiator cross member made of magnesium may be damaged.



Remove

2

Remove left air ducting (10).



Clean

3

Thoroughly clean area around connecting points of oil line (6) and oil line (9) on steering filter (7), and area around cap (1) of expansion reservoir (2).


Before opening the hydraulic circuit of the power steering, thoroughly clean the surrounding area of the separation point.
Even minute particles of dirt, introduced into the hydraulic components, can result in malfunctions and damage to the power steering.



Remove

4

Clamp off oil line (6) and oil line (9) using pinch-off pliers.

 If necessary, use commercially available devices/tools.
Pinch-off pliers, comparable to Hazet 4590-2 pin-off pliers

5

Open CLIC clamp (3) and CLIC clamp (8).

 Pliers for click clamps

*171589003700

6

Release steering filter (7) from holder (5).

7

Detach oil line (6), collect escaping oil and seal oil line (6) with stop plug.


There must be no oil on the poly-V-belt or the coolant hoses.
Otherwise the poly-V-belt or the coolant hoses will be damaged.

 Record plug

*129589009100

8

Collect oil from steering filter (7) in a suitable container.


There must be no oil on the poly-V-belt or the coolant hoses.
Otherwise the poly-V-belt or the coolant hoses will be damaged.

9

Detach oil line (9), collect escaping oil and seal oil line (9) with stop plug.


There must be no oil on the poly-V-belt or the coolant hoses.
Otherwise the poly-V-belt or the coolant hoses will be damaged.

 Record plug

*129589009100

Disposal

11

Dispose of steering filter (7).



Install

12

Fit new CLIC clamp (3) onto oil line (6).

13

Fit new CLIC clamp (8) onto oil line (9).

14

Remove stop plug from oil line (9) and slide oil line (9) onto new steering filter (7) according to flow direction (4).


There must be no oil on the poly-V-belt or the coolant hoses.
Otherwise the poly-V-belt or the coolant hoses will be damaged.

 Record plug

*129589009100

15

Remove stop plug from oil line (6) and slide oil line (6) onto new steering filter (7) to match flow direction (4).


There must be no oil on the poly-V-belt or the coolant hoses.
Otherwise the poly-V-belt or the coolant hoses will be damaged.

 Record plug

*129589009100

16

Correctly position and close new CLIC clamp (3) on oil line (6).

 Pliers for click clamps

*171589003700

17

Position new CLIC clamp (8) correctly on oil line (9) and close.

 Pliers for click clamps

*171589003700

18

Secure steering filter (7) to holder (5).

19

Remove pinch-off pliers from oil line (6) and oil line (9).

 If necessary, use commercially available devices/tools.
Pinch-off pliers, comparable to Hazet 4590-2 pin-off pliers

Filling

20

Fill oil level in expansion reservoir (2) of power steering system up to "Max." marking on oil dipstick (1a) of cap (1).



Hydraulic fluids (Specification 345.0)

BB00.40-P-0345-00A



Check

21

Start engine.

22

Guide steering through with engine running.

23

Switch off engine.

24

Remove cap (1) and read off oil level on oil dipstick (1a).

 Note oil temperature and markings on oil dipstick (1a) of cap (1). The oil level must lie between the "Min." and "Max." ­ markings in accordance with the oil temperature.

 To avoid any measuring errors, hold oil dipstick (1a) upright.

If the oil level is too low,



Add oil.



Hydraulic fluids (Specification 345.0)

BB00.40-P-0345-00A

If oil level is too high,



Extract oil.



Install

25

Install left air ducting (10).

Finishing activity

26

Remove front cover from magnesium radiator cross member.



000 588 04 98 00 Cover

WS98.00-P-0005B