Remove/install exhaust gas recirculation cooler

AR14.20-D-7665WE

Remove/install exhaust gas recirculation cooler

22.02.2018

Engine

651 in model 900

Engine

651.955/956/957 in model 906

Modification notes

31.10.2013

Observe tightening procedure, added.

Operation step 7

Shown on vehicle with engine to 31.8.10 with engine 651.955

1

Exhaust gas recirculation cooler

2

Coolant hose

3

Coolant hose

4

Screw/bolt

5

Screw/bolt

6

Screw/bolts

7

Bracket (for engine 651.955/957.)

8

Bracket (for engine 651.955/957 or engine 651.956 as of 1.9.10)

9

Vacuum reservoir (for engine 651.955/957.)

 

Remove/install

1

Drain coolant

AR20.00-D-1140SD

2

Remove engine cover

AR01.10-D-2405WE

3

Remove vacuum reservoir (9)

Engine 651.955/957

AR07.09-D-0001WE

4

Unfasten hose clamp and detach coolant hose (2) from exhaust gas recirculation cooler (1)

 Catch coolant with suitable container.

 Installation: Check clamp for damage, replace if necessary.

5

Remove screw/bolt (4)

 For engine 651.955/957 the bracket (8) for the vacuum reservoir (9) is also fastened at the same time by screw/bolt (4).
For vehicles as of 1.9.10 with engine 651.956 the bracket (8) for the guide tube is also fastened at the same time with screw/bolt (4).

 Bolt, exhaust gas recirculation cooler/vacuum reservoir holder to support

*BA14.20-N-1027-01H

6

Remove screw/bolt (5)

 Bolt, support to exhaust gas recirculation cooler

*BA14.20-N-1032-01H

7

Remove screw/bolts (6)

Tightening procedure for exhaust gas recirculation cooler

AR14.20-S-7665-01SJ

 For engine 651.955/957 the bracket (7) for the vacuum reservoir (9) is also fastened at the same time by the upper screw/bolts (6).
Secure screw/bolts (6) and exhaust gas recirculation cooler (1)from falling down.

 Installation: Observe tightening procedure.

 Bolt, exhaust gas recirculation cooler to bypass flap

*BA14.20-N-1003-01H

 Set of flexible head wrenches

*001589810900

8

Unfasten clamp and detach coolant hose (3) from exhaust gas recirculation cooler (1)

 Catch coolant with suitable container.

 Installation: Check clamp for damage, replace if necessary.

9

Remove exhaust gas recirculation cooler (1)

 Installation: Clean sealing surfaces and replace gasket.

10

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

11

Perform an engine test run and check engine in the area of the exhaust gas recirculation cooler (1) for leaktightness

 Exhaust gas recirculation

Number

Designation

Engine 651 in model 900

Engine 651 in model 906

BA14.20-N-1003-01H

Bolt, exhaust gas recirculation cooler to bypass flap

Nm

10

10

 Exhaust gas recirculation

Number

Designation

Engine 651 in model 900

Engine 651 in model 906

BA14.20-N-1027-01H

Bolt, exhaust gas recirculation cooler/vacuum reservoir holder to support

Nm

9

9

 Exhaust gas recirculation

Number

Designation

Engine 651 in model 900

Engine 651 in model 906

BA14.20-N-1032-01H

Bolt, support to exhaust gas recirculation cooler

Nm

9

9