Remove/install oil-water heat exchanger

AR18.30-P-6840CD

Remove/install oil-water heat exchanger

02.02.2016

Engine

651 in model 204, 207, 212, 218, 221

Modification notes

01.02.2016

Basic date altered

Operation step 9

Shown on model 204

8

Bracket

10

Mounting plate

Y85

Exhaust gas recirculation cooler bypass switchover valve

1

Coolant hose

3

Heat exchanger

2

Screw/bolts

5

Sealing rings

 Danger !

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

 Danger !

Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from swallowing coolant.

Do not open cooling system unless coolant temperature is below 90 °C. Open cap slowly and release the pressure. Do not pour coolant into beverage containers.
Wear protective gloves, protective clothing and safety glasses.

AS20.00-Z-0001-01A



Notes on coolant

AH20.00-N-2080-01A

 

Remove/install

1

Drain off coolant

Engine 651 in model 212.098/298

AR20.00-P-1142EH

Engine 651 in model 204, 207

AR20.00-P-1142CW

Engine 651 in model 212 (except 212.098/298), 218, 221

AR20.00-P-1142OMA

2

Remove throttle valve actuator

AR09.41-P-1321CD

3

Unclip exhaust gas recirculation cooler bypass switchover valve (Y85) at bracket (8)

4

Remove mounting plate (10)

 Charge air manifold fastening plate bolt on engine support

*BA09.41-P-1005-01N

5

Detach power steering pump and place with attached hydraulic lines to one side

Engine 651 in model 204
Without electrohydraulic power steering (EHPS)Engine 651 in model 207, 212 (except 212.098/298)

Engine 651 in model 207, 212 (except 212.098/298)

AR46.30-P-0500EWI

Engine 651 in model 204Without electrohydraulic power steering (EHPS)

AR46.30-P-0500CO

6

Detach A/C compressor and lay down to the side with connected refrigerant lines

Engine 651 in model 204, 207, 212 (except 212.098/298), 218, 221

Engine 651 in model 204, 207, 212 (except 212.098/298), 218, 221

AR83.55-P-5300CD

7

Remove oil filter housing

Engine 651.9 in model 212.098/298

AR18.20-P-3471EH

Engine 651 in model 204, 207, 212 (except 212.098/298), 218, 221

AR18.20-P-3471CD

8

Detach coolant hose (1) on heat exchanger (3)

 Hose clamp pliers

*003589033700

9

Remove screw/bolts (2)

 Installation: Tighten screw/bolts (2) in a crosswise pattern.

 Oil filter housing to crankcase

*BA18.20-P-1002-01W

10

Remove heat exchanger (3) with oil filter housing base plate

 Installation: Replace sealing rings (5).

11

Install in the reverse order

12

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



AD00.00-P-2000-04A



Check

13

Check engine oil level; correct if necessary



AP18.00-P-1811MP

 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

14

Perform an engine test run and check engine for leaktightness in the area of the heat exchanger (3)

15

Check engine cooling system for leaktightness

Engine 651 in model 204, 207

AR20.00-P-1010CW

Engine 651 in model 212, 218

AR20.00-P-1010OMA

Engine 651 in model 221

AR20.00-P-1010SX

 Charge air pipe/charge air cooling

Number

Designation

Engine 651

BA09.41-P-1005-01N

Charge air manifold fastening plate bolt on engine support

Nm

20

 Oil filter

Number

Designation

Engine 651

BA18.20-P-1002-01W

Oil filter housing to crankcase

M6

Nm

10

M8

Nm

20