Remove/install turbocharger

AR09.40-S-6020EF

Remove/install turbocharger

19.03.2019

Model

447 with engine 622.9

Modification notes

19.03.2019

Special tool 003 589 03 37 00 hose clamp pliers replaced by special tool 454 589 00 37 00 hose clamp pliers.

Operation steps 9, 13

1

Electrical connector

2

Electrical connector

3

Electrical connector

4

Electrical connector

B28/25

Diesel particulate filter differential pressure sensor

5

Hose

6

Screw

7

Screw

8

Intake air duct

9

Hose

10

Nuts

11

Turbocharger

12

Bracket

13

Bolts

14

Bolts

15

Heat shield

Preparatory tasks

1

Check vehicle equipment in Vehicle Documentation (VeDoc).

When replacing exhaust gas turbocharger (11).



Service Information: Technical modifications on turbocharger

Model 447.6/7 with engine 622.9
except code MB6 (Low-emission vehicle, Euro 6 Gr. 1)

SI09.40-S-0005A

 As per service information there must be checking whether code O55 (Generation 6 ATL retrofitted) is documented for the vehicle.

 

Remove/install

 Warning

Risk of injury. Skin or eye injuries may result when handling hot or glowing objects.

Wear protective gloves, protective clothing and safety glasses, if necessary.

AS00.00-Z-0002-01A

 Warning

Risk of burn injuries, suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning caused by skin contact with solid components of the exhaust.

Wear protective clothing and safety glasses. Use the extraction system. Move people out of the hazard area.

AS49.00-Z-0001-01A

 Caution

Risk of injury to skin and eyes due to handling of engine oil. Risk of poisoning caused by swallowing engine oil

Wear protective gloves, protective clothing and safety glasses.
Do not fill engine oil into beverage containers.

AS18.00-Z-0001-01A

 Caution

Risk of injury caused by scraping or cutting body parts on sharp vehicle parts

Always wear protective gloves when working on or near sharp and non-deburred vehicle parts.
Deburr repair panels.

AS00.00-Z-0017-01A

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A

2

Remove diesel particulate filter.

AR14.40-S-1000EF

3

Disconnect electrical connections (1, 2, 3, 4).

4

Remove oil return feed line from exhaust gas turbocharger (11).

AR09.40-S-6021EF

 Installation: Replace seal.

5

Remove oil feed line of exhaust gas turbocharger (11).

AR09.40-S-6035EF

6

Remove engine charge air duct from exhaust gas turbocharger (11).

AR09.41-S-8622EF

7

Remove boost pressure control pressure transducer and place to one side.

AR07.17-S-7002EF

 Remove with the bracket.

8

Remove diesel particulate filter differential pressure sensor (B28/25).

AR07.04-S-0025EF

9

Remove hose (5).

 Installation: Check clamp.

 Hose clamp pliers

*454589003700

Depending on the findings,



Replace clamp.

10

Remove screw/bolts (6).

 M6

*BA00.10-N-1002-01A

11

Remove screw (7).

12

Remove intake air duct (8).

13

Remove hose (9).

 Installation: Check clamp.

 Hose clamp pliers

*454589003700

Depending on the findings,



Replace clamp.

14

Remove intake air duct (8).

15

Remove vacuum hose from diaphragm capsule of exhaust gas turbocharger (11).

16

Unscrew nuts (10).

 Nut, turbocharger to exhaust manifold

*BA09.40-N-1001-02E

17

Remove exhaust gas turbocharger (11).

18

Remove exhaust gas recirculation cooler.

AR14.20-S-7665EF

19

Remove bracket (12).

 To do this, unscrew screw/bolts (13).

 Bolt, exhaust gas recirculation bracket to crankcase

*BA14.20-N-1005-01N

 Bolt, bracket for exhaust gas recirculation to cylinder head

*BA14.20-N-1008-01N

20

Remove screws (14).

 M6

*BA00.10-N-1002-01A

21

Remove seal of exhaust gas turbocharger (11).

 The seal is integrated in the heat shield (15).

 Installation: Replace heat shield (15).

22

Install in the reverse order.

 Headless screws/bolts: screws/bolts and nuts, coarse-pitch thread

Number

Designation

8.8

10.9

BA00.10-N-1002-01A

M6

Galvanized

Nm

9

13

Phosphated

Nm

9

12

 Headless screws/bolts: screws/bolts and nuts, coarse-pitch thread

Number

Designation

12.9

BA00.10-N-1002-01A

M6

Galvanized

Nm

16

Phosphated

Nm

14

 Turbocharger

Number

Designation

Engine 622 in model 447

BA09.40-N-1001-02E

Nut, turbocharger to exhaust manifold

Nm

25

 Exhaust gas recirculation

Number

Designation

Engine 622 in model 447

BA14.20-N-1005-01N

Bolt, exhaust gas recirculation bracket to crankcase

Nm

25

 Exhaust gas recirculation

Number

Designation

Engine 622 in model 447

BA14.20-N-1008-01N

Bolt, bracket for exhaust gas recirculation to cylinder head

Nm

25