Remove oil from cooling and heating system

AR20.00-P-1250CD

Remove oil from cooling and heating system

07.10.2019

Engine

642, 651 in model 204, 207, 212

Engine

651 in model 117, 156, 176, 246

Engine

651 in model 172

Engine

651 in model 218, 221

Modification notes

27.09.2013

The heater of the vehicle must be set to the highest temperature stage. The heater circuit will not be flushed otherwise, added.

Operation step 3

27.09.2013

Mix the cleaner to a 5% flushing solution (10 l water, 0.5 l cleaner).

Operation step 4

01.10.2013

Repeat operation steps 4 and 10 if necessary, added.

Operation step 11

Shown on engine 651

1

Coolant expansion reservoir

18

Radiator

20

Coolant thermostat

 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

 Warning

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



Remove

1

Drain off coolant.

Engine 651.9 in model 212.098/298

AR20.00-P-1142EH

Engine 651 in model 117, 156, 176, 246

AR20.00-P-1142NKB

Model 212 (except 212.098/298), 218, 221 with engine 651

AR20.00-P-1142OMA

Model 212 with engine 642

AR20.00-P-1142OGE

Model 172 with engine 651
Model 204, 207 with engine 642, 651

AR20.00-P-1142CW

2

Remove coolant thermostat (20) from the thermostat housing.

Engine 651.9 in model 212.098/298

AR20.10-P-2460EH

Engine 651 in model 117, 156, 176, 246

AR20.10-P-2460OLB

Engine 642 in model 204

AR20.10-P-2460CO

Engine 642 in model 207, 212

AR20.10-P-2460OGE

Engine 651 in model 172, 204, 207, 212 (except 212.098/298), 218, 221

AR20.10-P-2460CD



Clean

3

Set heater control to full output.


The heater of the vehicle must be set to the highest temperature stage.
The heater circuit will not be flushed otherwise.

 For vehicles with an auxiliary heater; also set auxiliary heater to full output.

4

Fill cooling and heating system with rinsing solution.

AR20.00-P-1142-04A

 Mix the cleaner to make a 5% flushing solution (10 l water, 0.5 l cleaner).

Cleaner for engine and cooling system for oil drag-in, 10 l

*BR00.45-Z-1009-04A

 Test cap

*210589009100

 Cooler vacuum filling device

*285589002100

5

Warm up engine at average engine speed to operating temperature.

 While engine is running, maintain operating temperature at about 80°C for about 5 min.

6

Switch off engine and allow cooling system to cool down to 50 °C.

7

Drain rinsing solution completely at the drain screw of the cooler (18).

 Observe environmental protection regulations of cleaner manufacturer.

8

Fill cooling system with fresh water.

AR20.00-P-1142-04A

 Test cap

*210589009100

 Cooler vacuum filling device

*285589002100

9

Warm up engine at average engine speed to operating temperature.

 While engine is running, maintain operating temperature at about 80°C for about 5 min.

10

Drain fresh water completely at the drain screw of cooler (18).

 If necessary, repeat rinsing procedure with fresh water so that all rinsing solution is removed.

11

If necessary, repeat operation steps 4 to 10.



Install

12

Replace coolant thermostat (20).

Engine 651.9 in model 212.098/298

AR20.10-P-2460EH

Engine 651 in model 117, 156, 176, 246

AR20.10-P-2460OLB

Engine 642 in model 204

AR20.10-P-2460CO

Engine 642 in model 207, 212

AR20.10-P-2460OGE

Engine 651 in model 172, 204, 207, 212 (except 212.098/298), 218, 221

AR20.10-P-2460CD

13

Pour in coolant and bleed cooling system.

Engine 651.9 in model 212.098/298

AR20.00-P-1142EH

Engine 651 in model 117, 156, 176, 246

AR20.00-P-1142NKB

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

AR20.00-P-1142OMA

Engine 642 in model 212

AR20.00-P-1142OGE

Engine 642, 651 in model 204, 207
Engine 651 in model 172

AR20.00-P-1142CW

 Installation:
Do not check the pressure of the cooling system until engine has reached its operating temperature.
Leaks can occur on the cylinder head gasket otherwise.

Repair materials

Number

Designation

Order number

BR00.45-Z-1009-04A

Cleaner for engine and cooling system for oil drag-in, 10 l

A 002 986 42 71