Fill power steering pump and bleed

AR46.30-P-0010T

Fill power steering pump and bleed

23.11.09

28.7.04

Raise vehicle until wheels are clear of the ground using lifting platform, added

Step 1

28.7.04

Turn steering wheel slowly from steering stop to steering stop until no more bubbles are ascertained, added

Step 4

 

Remove/install

1

Hoist vehicle with lifting platform until wheels are free

Model 211

AR00.60-P-1000T

2.1

Remove cylinder head cover trim

Engines 646, 647

AR01.20-P-5014-02A

Engine 648

AR01.20-P-5014-02C



*BA01.20-P-1002-01G



*BA01.20-P-1003-01G

2.2

Remove engine trim panel

Engine 629

AR01.10-P-2405TJ

Fill

3

Fill expansion reservoir (30a) with MB-steering gear oil

 Do not start the engine!

If the engine is started there is a risk of air entering the hydraulic steering system, which is then extremely difficult to remove.

 Fill the expansion reservoir (30a) with MB steering gear oil up to approx. 10 mm below the top edge of the reservoir.

 Add MB steering gear oil continuously, until the fluid level remains constant.



*BF46.20-P-1001-01A

Bleeding

4

Turn steering wheel from steering stop to steering stop

 Do not start the engine!

If the engine is started there is a risk of air entering the hydraulic steering system, which is then extremely difficult to remove.

 Slowly turn steering wheel from steering stop to steering stop until no more bubbles are ascertained in the expansion reservoir (30a).

 Repeat turning the steering from stop to stop several times (up to 30 times). During this process MB steering gear oil must be added to the expansion reservoir by an assistant.

Bleeding

 Danger!

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

5

Start engine without moving the steering

 Allow engine to run for approx. 1 min at idle speed.

 During this process an assistant must observe the steering gear oil level in the expansion reservoir (30a) and add MB steering gear oil if necessary.

6

Turn steering wheel from steering stop to steering stop

 When the engine is running, turn the steering wheel slowly several times from steering stop to steering stop, in the meantime refilling the expansion reservoir (30a) with MB steering gear oil.

 Repeat process until the steering gear oil level remains constant in the expansion reservoir (30a) and there are no more bubbles.



Checking

7

Check oil level in expansion reservoir (30a) and fill to maximum fill level

 The oil level in the expansion reservoir (30a) must always be filled up to the maximum level.



Power steering - checking and correcting oil level

Model 211.004 /006 /007 /008 /016 /023 /026 /028 /029 /206 /208 /216 /223 /226 /606 /608 /616

AP46.00-P-4611P



Model 211.041 /042 /241 /242

AP46.00-P-4611BB

8

Check steering system when engine is running for signs of leaks and proper function

 In the event of leakage, find and eliminate cause.

9

Install in the reverse order

Number

Designation

Engine
646.951/961,
647.961

Engine
646.962/963/966

Engine
648

BA01.20-P-1002-01G

Bolt, cylinder head cover trim to cylinder head

Nm

9

9

9

BA01.20-P-1003-01G

Bolt, cover to charge air manifold.

Nm

9

9

9

Number

Designation

Model
211

BF46.20-P-1001-01A

Power steering

Filling capacity

Liters

1,1

MB steering gear oil

Sheet

BB00.40-P-0345-00A