Remove/install oil separator

AR01.20-P-9750MTA

Remove/install oil separator

16.4.15

Engine

133 in model 117, 156, 176

1

Exhaust intermediate pipe

2l

Steering gear heat shield

2

Integral carrier heat shield

3

Right side shaft heat shield

4

Oil drain

5

Wide open throttle vent line

6

Screw/bolts

16

Purge line

18

Vent line

29

Oil separator

5

Wide open throttle bleed line

7

Screw/bolt

8

Coolant return line

14

Filler neck

15

Vacuum hoses

16

Purge line

17

Bracket

30

Vent line

B4/4

Purging pressure sensor

8

Coolant return line

9

Coolant line

10

Purge line

11

Purge line

12

Bracket

13

Partial load bleed line

16

Purge line

27

Screw/bolts

28

Charge air cooler

29

Oil separator

30

Vent line

B28/6

Pressure sensor upstream of throttle valve

M16/6

Throttle valve actuator

 

Remove/install

1

Remove engine compartment paneling

AR61.20-P-1105NKB

2

Empty low-temperature circuit

AR20.00-P-1144MTA

3

Remove exhaust intermediate pipe (1)

AR49.10-P-7100MTA

4

Remove right side shaft heat shield (3)

5

Remove integral carrier heat shield (2)

6

Detach oil drain (4) at crankcase

 Installation: Replace sealing ring.

 Bolt, bleed line for oil separator to crankcase

*BA01.20-P-1004-01R

7

Detach wide open throttle vent lines (5) at crankcase

 Installation: Replace sealing ring.

 Screw/bolt, crankcase ventilation system vent line to crankcase

*BA01.20-P-1005-01R

8

Remove screw/bolts (6)

 Screw/bolt, oil separator to crankcase

*BA01.20-P-1002-01R

9

Remove air filter housing

AR09.10-P-1150MTA

10

Remove battery carrier

AR54.00-P-0002NKB

11

Remove charge air hose downstream of charge air cooler (28)

AR09.41-P-8619MTA

12

Detach vent line (30) from coolant expansion reservoir for low-temperature circuit

 Hose clamp pliers

*003589033700

13

Remove screw/bolts (, 7) and coolant return line (8) at charge air cooler (28)

AR09.41-P-1311-01AL

14

Disconnect electrical connection at pressure sensor upstream of throttle valve (B28/6), expose electrical wiring harness and place to one side

15

Remove coolant line (9)

16

Detach partial load vent line (13) from oil separator (29)

17

Disconnect purge line (10) at fuel tank ventilation and detach at charge air cooler (28)

 Installation: Replace sealing ring.

18

Detach purge lines (10, 11) at throttle valve actuator (M16/6) as well as bracket (12) and remove upwards

 Installation: Install new sealing rings.

19

Disconnect electrical connection at purging pressure sensor (B4/4).

20

Detach filler neck (14) from cylinder head cover

 Installation: Replace seal.
Pay attention to correct routing of vacuum hoses (15).
The vacuum line to the ATL aneroid capsule must not be unclipped at the oil filler neck bracket otherwise it must lie loosely beside.

 Screw/bolt, filler neck to cylinder head cover

*BA01.20-P-1003-01R

21

Detach purge line (16) at charge air cooler (28) and expose

 Installation: Replace seal.

22

Detach wide open throttle vent line (5) from bracket (17) and expose

 Installation: Replace seals.

23

Unfasten edge guard at partition wall and place to one side

24

Remove screw/bolts (27) and remove oil separator (29) with attached vent lines (5, 18) upwards

 Screw/bolt, oil separator to cylinder head cover

*BA01.20-P-1007-01R

25.1

Detach wide open throttle vent line (5) from oil separator (29)

Engine 133 in model 117, 156, 176
except code 494 (US version)

AR01.20-P-0002MTA

25.2

Replace oil separator (29) with wide open throttle vent line (5)

Engine 133 in model 117, 156, 176
with code 494 (US version)

 The wide open throttle vent line (5) and the oil separator (29) are firmly connected together over a key-lock connection. Therefore the oil separator (29) and the wide open throttle vent line (5) must be replaced after disconnection of the connection.

26

Install in the reverse order

27

Read out fault memory using the diagnostic system and clear if necessary



AD00.00-P-2000-04A

 Danger !

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

28

Carry out engine test run and check engine for leaktightness while it is running

 Crankcase ventilation system, cylinder head cover, camshaft housing

Number

Designation

Engine 133

BA01.20-P-1002-01R

Screw/bolt, oil separator to crankcase

Nm

9

 Crankcase ventilation system, cylinder head cover, camshaft housing

Number

Designation

Engine 133

BA01.20-P-1003-01R

Screw/bolt, filler neck to cylinder head cover

Nm

9

 Crankcase ventilation system, cylinder head cover, camshaft housing

Number

Designation

Engine 133

BA01.20-P-1004-01R

Bolt, bleed line for oil separator to crankcase

Nm

9

 Crankcase ventilation system, cylinder head cover, camshaft housing

Number

Designation

Engine 133

BA01.20-P-1005-01R

Screw/bolt, crankcase ventilation system vent line to crankcase

Nm

9

 Crankcase ventilation system, cylinder head cover, camshaft housing

Number

Designation

Engine 133

BA01.20-P-1007-01R

Screw/bolt, oil separator to cylinder head cover

Nm

9