Remove/install 2-cylinder compressor

AR13.30-B-0002EVI

Remove/install 2-cylinder compressor

28.05.2018

Engine

936.9 in model 382.155/189

with code MS6 (Euro VI)

1

Resonance tank

5

Control cable

9

Support

2

Air intake piping

6

Coolant pipes

10

Timing case

3

Compressed air piping

7

Coolant pipes

14

Filler neck

4

Compressor

8

Hydraulic steering pump

A4

Controller module of the engine control unit (MCM)

4

Compressor

11

Drive gear

12

Sealing ring

13

Sealing ring

15

Filler neck

16

Filler neck

 Warning

Risk of injury caused by pinching or crushing when working on springs or spring bodies that are under tension

Use only approved tensioning devices; additionally screen off hazardous area if necessary. Check special tools for damage and proper operation (visual inspection). Wear protective gloves.

AS00.00-Z-0001-01A

 Warning

Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from swallowing coolant.

Do not open cooling system unless coolant temperature is below 90 °C. Open cap slowly and release the pressure. Do not pour coolant into beverage containers.
Wear protective gloves, protective clothing and safety glasses.

AS20.00-Z-0001-01A

 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

Topical note

Notes on coolant

AH20.00-N-2080-01A

Topical note

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-N-5000-01H

Notes on engine oil

AH18.00-N-0101-01HA

 

Remove/install

1

Open the engine compartment

 The access to perform maintenance and repair works varies according to the type / body manufacturer.

2

Drain the coolant in the radiator of the engine

AR20.00-B-1142EVI

3

Remove acoustic capsules

4

Remove the resonance tank (1)

AR13.10-B-5840EVI

5

Remove the controller module of the engine control unit (MCM) (A4)

AR07.08-B-7013EVI

6

Remove the air intake pipe (2)

 Installation: Check the sealing ring for damage and, if necessary, replace it.

7

Remove the compressed air piping (3) from the compressor (4)

 Installation: Test the air compressed piping (3) for coking. In case of coking, the air compressed piping (3) and the coked parts must be replaced.

 Compressed-air line cover nut on compressor sleeve

*BA13.30-B-1008-01EVI

8

Remove the control cable (5) in the compressor (4)

 Installation: Check the sealing ring for damages. If necessary, replace.

 Cover nut of the control line on compressor

*BA13.30-B-1003-01EVI

9

Unlock and remove the coolant pipes (6, 7), and remove them on the compressor (4)

 Collect the coolant that flows out in an appropriate container.

10

Remove hydraulic power steering pump

AR46.30-B-0500-02EVI

 Power-steering pump screw on compressor

*BA13.30-B-1009-01EVI

11

Remove the bracket (9)

 Bracket screw on compressor

*BA13.30-B-1011-01EVI

 Compressor bracket screw in crankcase

*BA13.30-B-1010-01EVI

12

Loosen the vehicle wiring harness on the board

13

Remove the compressor (4) from the timing case (10)

 Collect drained engine oil in a proper container.

 Installation: First place the rear upper bolts, then the compressor (4) in the timing case (10). If necessary, spin the drive gear (11) of the compressor (4).

 Compressor screw on distribution housing

*BA13.30-B-1001-01EVI

14

Remove and install the drive gear (11)

Only if the drive gear (11) is damaged.

AR13.30-B-7044EVI

 Installation: Install the new drive gear (11) and check the respective drive gear for damages, if necessary replace it.

15

Remove the sealing rings (12, 13) on the compressor (4)

 Installation: Replace the sealing rings (12, 13).

16

Loosen the filler neck (14) on the compressor (4)

Only when the compressor is replace (4) or if the filler neck (14) is leaking.

 Sleeve on compressor

*BA13.30-B-1007-01EVI

17

Loosen the pipe sockets (15, 16) of the coolant pipes (6, 7) on the compressor (4)

Only when the compressor (4) is replaced or if the pipe sockets (15, 16) are leaking.

 Coolant line sleeve on compressor

*BA13.30-B-1006-01EVI

18

Install on the reverse order

19

Check the engine oil level on the display

 Observe the specification of the engine oil adjusted in the maintenance system.

If necessary:



Correct the oil level.

20

Start the engine and perform the engine test cycle

 Let engine running at higher speed.

21

Stop the engine

 Compressor (compressed-air system)

Number

Designation

ENGINE 936.9

BA13.30-B-1001-01EVI

Compressor screw on distribution housing

1st stage

Nm

10

2nd stage

Nm

50

 Compressor (compressed-air system)

Number

Designation

ENGINE 936.9

BA13.30-B-1003-01EVI

Cover nut of the control line on compressor

Nm

5

 Compressor (compressed-air system)

Number

Designation

ENGINE 936.9

BA13.30-B-1006-01EVI

Coolant line sleeve on compressor

M16x1.5

Nm

50

M18x1.5

Nm

45

 Compressor (compressed-air system)

Number

Designation

ENGINE 936.9

BA13.30-B-1007-01EVI

Sleeve on compressor

M14x1.5

Nm

40

M26x1.5

Nm

75

 Compressor (compressed-air system)

Number

Designation

ENGINE 936.9

BA13.30-B-1008-01EVI

Compressed-air line cover nut on compressor sleeve

Nm

75

 Compressor (compressed-air system)

Number

Designation

ENGINE 936.9

BA13.30-B-1009-01EVI

Power-steering pump screw on compressor

M10

Nm

50

 Compressor (compressed-air system)

Number

Designation

ENGINE 936.9

BA13.30-B-1010-01EVI

Compressor bracket screw in crankcase

Nm

30

 Compressor (compressed-air system)

Number

Designation

ENGINE 936.9

BA13.30-B-1011-01EVI

Bracket screw on compressor

Nm

50