Remove/install mixing chamber

AR09.20-P-1320OID

Remove/install mixing chamber

16.05.2019

Engine

656 in model 167

1

Mixing chamber

4

Exhaust gas recirculation line

8

Electrical line

2

Bolts

5

Bolts

9

Coolant hose

3

Bolts

6

Electrical connector

M16/6

Throttle valve actuator

 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

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

Topical note

Notes on threaded connections fastened using a tightening angle-based tightening process

AH00.00-P-0020-01A

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A

 

Remove/install

1

Remove upper engine cover.

AR01.10-P-2405OID

 Installation: Only install upper engine cover after the leak test.

2

Remove engine air intake duct upstream of air filter housing.

3

Remove top front noise insulation from the engine.

4

Release and disconnect electrical connector (6).

5

Unclip electric lines (8) from the mixer housing (1).

6

Remove screws(5) and remove exhaust gas recirculation line (4).

 Installation: Replace seals.

 Bolt, exhaust gas recirculation line to high pressure exhaust gas recirculation cooler/mixer housing

*BA14.20-P-1011-01R

7

Unclip coolant hose (9) from mixer housing (1).

8

Remove screws (2, 3).

 Screw, mixer housing

*BA09.41-P-1002-01BA

9

Remove mixer housing (1).

 Installation: Install new seals on mixer housing (1).

 Installation: Install new seal for throttle valve actuator (M16/6) in charge air cooler.

10

Remove boost pressure sensor.

When replacing the mixing chamber (1).

AR09.41-P-2006OID

11

Install in the reverse order.

 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

12

Carry out engine test run and check engine for proper leaktightness and leaktightness.

13

Install upper engine cover.

AR01.10-P-2405OID

 Charge air pipe/charge air cooling

Number

Designation

Engine 656

BA09.41-P-1002-01BA

Screw, mixer housing

to charge-air distributor

Nm

8

to throttle valve actuator/charge air cooler

Stage 1

Nm

8

Stage 2

°

90

 Exhaust gas recirculation

Number

Designation

Engine 656

BA14.20-P-1011-01R

Bolt, exhaust gas recirculation line to high pressure exhaust gas recirculation cooler/mixer housing

Nm

10