Drain/pour in coolant

AR20.00-P-1142RX

Drain/pour in coolant

05.12.2018

Engine

272, 273 in model 230

Modification notes

06.03.2006

Cooling system

Engine 272, 273

BF20.00-P-1001-02U

3

Drain hose

4

Drain screw for radiator

5

Drain screw for left cylinder crankcase

6

Drain screw for right cylinder crankcase

Drain off

 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

 Danger

Risk of death caused by vehicle slipping or toppling off of the lifting platform.

Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer.

AS00.00-Z-0010-01A

Topical note

Notes on coolant

AH20.00-N-2080-01A

1

Unscrew cooling system cap at coolant expansion reservoir

 Loosen cooling system cap slowly and relieve overpressure, then unscrew cooling system cap.

Drain coolant at radiator

2

Slide drain hose onto left fitting (3) at radiator

3

Open drain screw (4) on radiator and drain coolant

 Observe regulations to dispose of coolant.

Drain coolant at cylinder crankcase

4

Detach ground lines from batteries

When draining coolant at right drain screw (6)
Model 230.4 except code P99

AR54.10-P-0003R

5

Loosen left or right drain screw (5, 6) at the cylinder crankcase until it can be turned manually

6

Push drain hose (3) onto left and right drain screw (5, 6)

7

Continue to manually loosen left or right drain screw (5, 6) and drain coolant

 Observe regulations to dispose of coolant.

8.1

Tighten drain screw (4) at radiator and detach drain hose from fitting (3)

Radiator

 After coolant has been drained at radiator

8.2

Detach drain hose (3) and tighten left and right drain screw at (5, 6) on cylinder crankcase

Cylinder crankcase

 After coolant has been drained at cylinder crankcase

 Coolant drain plug to cylinder crankcase

*BA20.00-P-1001-02E

Pour in

9

Pour in coolant and bleed cooling system

AR20.00-P-1142-04A

Notes on coolant level

AH20.00-P-1142-01CW



Coolant specifications

BB00.40-P-0310-01A



Anticorrosion/antifreeze agents (Sheet 325.0)

BB00.40-P-0325-00A

 Re-use clean coolant.

 Cooling system

*BF20.00-P-1001-02U

10

Check cooling system for leaktightness

AR20.00-P-1010RX

11

Connect ground lines to batteries

After draining coolant at right drain screw (6)
MODEL 230 except CODEP99

AR54.10-P-0003R

12

Connect STAR DIAGNOSIS, read out and clear fault memory



After detaching ground lines from batteries

AD00.00-P-2000-04A

 STAR DIAGNOSIS diagnosis system

 Engine cooling, general

Number

Designation

Engine 272

Engine 273

BA20.00-P-1001-02E

Coolant drain plug to cylinder crankcase

Nm

12

12

 Cooling system

Number

Designation

Engine 272 in model 230
Engine 272.960/970 in model 203

Engine 273 in model 230

BF20.00-P-1001-02U

Cooling system

Workshop replacement amount

Main circuit

Liter

 7,5

 8,0

Low temperature circuit

Liter

-

-

Antifreeze/water

Up to -37_°C

50/50

50/50

As of -38_°C

55/45

55/45

Specifications for Operating Fluids, Sheet

BB00.40-P-0310-01A

BB00.40-P-0310-01A

Specifications for Operating Fluids, Sheet

BB00.40-P-0325-00A

BB00.40-P-0325-00A

Specifications for Operating Fluids, Sheet

-

-