Remove/install turbocharger

AR09.40-P-6020OLB

Remove/install turbocharger

15.10.2018

Engine

651 in model 117, 156, 176, 246

Modification notes

11.08.2015

Remove screw/bolt (9), added

Operation step 11

Shown on code 928 (Emissions standard EU5)

1

Turbocharger

5

Oil circuit feed line

8

Electrical line

3

Strut

6

Oil circuit return line

9

Screw

4

Strut

7

Heat shield

B19/11

Temperature sensor upstream of turbocharger

17

Flexible exhaust pipe

 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

 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

 

Remove/install

1

Remove battery carrier.

AR54.00-P-0002NKB

2.1

Remove noise encapsulation.

Engine 651 in model 117, 176, 246

AR94.30-P-5300NKB

2.2

Remove engine compartment lining.

Engine 651 in model 156

AR61.20-P-1105NKB

3

Remove low pressure exhaust gas recirculation cooler.

Engine 651 in model 117, 156, 176, 246
with code 927 (EU6 emissions standard)

AR14.20-P-1015OLB

4

Remove exhaust gas recirculation line.

Engine 651 in model 117, 156, 176, 246
with code 927 (EU6 emissions standard)

AR14.20-P-1060OLB

5

Disconnect electrical connector of the lambda sensor upstream of the catalytic converter from the separating point and expose electric line.

6

Remove exhaust pipe from exhaust gas turbocharger (1).

 Nut/bolt, exhaust system at front to ATLNut/bolt, exhaust system at front to turbocharger

*BA49.10-P-1001-01AL

7

Remove temperature sensor upstream of the exhaust gas turbocharger (B19/11).

AR07.04-P-0071OLB

8

Remove strut (3) between the exhaust gas turbocharger (1) and the propeller shaft intermediate bearing of the drive shaft.

 Bolt, turbocharger retaining bracket to turbocharger/bearing bracket

*BA09.40-P-1018-01P

9

Remove strut (4) between the exhaust gas turbocharger (1) and the crankcase.

 Bolt, bracket for exhaust gas turbocharger to exhaust gas turbocharger/crankcase

*BA09.40-P-1019-01P

10

Remove right section of the oil circuit feed line (5).

AR09.40-P-6022OLB

11

Remove screw (9).

12

Remove oil circuit return line (6).

AR09.40-P-6021OLB

13

Disconnect electric line (8) from the exhaust gas turbocharger (1).

14.1

Remove charge air lines.

Engine 651 in model 176, 246
with code 928 (EU5 emission standard)

AR09.41-P-8620OLB

14.2

Remove engine air intake duct downstream of air filter.

Engine 651 in model 117, 156, 176, 246
with code 927 (EU6 emissions standard)

AR09.10-P-8130OLB

15

Release positive line for the starter from the carrier for the battery frame and expose.

16

Remove exhaust gas recirculation actuator motor.

Engine 651 in model 117, 156, 176, 246
with code 927 (EU6 emissions standard)

AR14.20-P-1045OLB

17

Remove left rear engine lifting lug from cylinder head.

 Lifting eye or bracket for glow output stage to cylinder head

*BA01.30-P-1004-01V

18

Remove flexible exhaust pipe (17).

AR01.30-P-5701OLB

19

Remove screws from exhaust manifold on exhaust gas turbocharger (1).

 Flange connection, exhaust manifold to exhaust gas turbocharger

*BA09.40-P-1001-01P

20

Remove exhaust gas turbocharger (1) toward the top left.


Carefully guide out the exhaust gas turbocharger (1).
There is danger of damage occurring.

21

Install in the reverse order.



Check

22

Check oil level in the engine and correct if necessary.



Engine 651 in model 117, 156
with code U43 (BLUETEC DIESEL EMISSION CONTR. ( NOx storage cat.))
Engine 651.901 ## as of 014700 in model 246
with code U43 (BLUETEC DIESEL EMISSION CONTR. ( NOx storage cat.))
Engine 651.930 in model 246
with code U43 (BLUETEC DIESEL EMISSION CONTR. ( NOx storage cat.))

AP18.00-P-0101NKD



Engine 651.901 ## up to 014699 in model 246

AP18.00-P-0101NKC



Engine 651 in model 117, 156
except code U43 (BLUETEC DIESEL EMISSION CONTR. ( NOx storage cat.))
Engine 651 in model 176
Engine 651.901 ## as of 014700 in model 246
except code U43 (BLUETEC DIESEL EMISSION CONTR. ( NOx storage cat.))
Engine 651.930 in model 246
except code U43 (BLUETEC DIESEL EMISSION CONTR. ( NOx storage cat.))

AP18.00-P-0101CWA


The engine oil level must lie between "Min" and "Max".
Engine damage can occur otherwise.

 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

23

Perform engine test run and check engine for leak tightness.

 Tightening torques, cylinder head

Number

Designation

Engine 651

BA01.30-P-1004-01V

Lifting eye or bracket for glow output stage to cylinder head

Nm

20

 Turbocharger

Number

Designation

Engine 651

BA09.40-P-1001-01P

Flange connection, exhaust manifold to exhaust gas turbocharger

Stage 1

Nm

20

Stage 2

°

90

 Turbocharger

Number

Designation

Engine 651

BA09.40-P-1018-01P

Bolt, turbocharger retaining bracket to turbocharger/bearing bracket

Stage 1

Nm

20

Stage 2

°

90

 Turbocharger

Number

Designation

Engine 651

BA09.40-P-1019-01P

Bolt, bracket for exhaust gas turbocharger to exhaust gas turbocharger/crankcase

Stage 1

Nm

20

Stage 2

°

90

 Exhaust system

Number

Designation

Engine 651 in model 117

Engine 607, 651 in model 156

BA49.10-P-1001-01AL

Nut/bolt, exhaust system at front to turbocharger

Nm

25

25

 Exhaust system

Number

Designation

Engine 607, 651 in model 176, 246

BA49.10-P-1001-01AL

Nut/bolt, exhaust system at front to turbocharger

Nm

25