Replace coolant

AP20.00-P-2080RX

Replace coolant

09.06.2016

Engine

156, 272, 273 in model 230

Engine

273 in model 209

Modification notes

26.09.2014

Mischungsverhältnis Kühlmittel

BF20.00-P-1001-04A

1

Cap

2

Coolant expansion reservoir



Remove

 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

 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



Notes on coolant

AH20.00-N-2080-01A

1

Switch off ignition

2

Open engine hood



MODEL 209

AR88.40-P-1000Q



MODEL 230

AR88.40-P-1000R



Check

3.1

Check coolant level

MODEL 209

AP20.30-P-2050Q

3.2

Check coolant level

MODEL 230

 Coolant cold: Engine coolant level up to marking "Cold water level".

 Coolant warm: Engine coolant level approx. 1 cm above marking "Cold water level".

If coolant level is too low:



Check cooling system for leaks subject to a separate repair order.



Remove

4

Remove bottom engine compartment paneling



MODEL 209

AR61.20-P-1105P



MODEL 230

AR61.20-P-1105R

5

Drain coolant



MODEL 209

AR20.00-P-1142QB



Engine 156 in model 230

AR20.00-P-1142RMG



Engine 272, 273 in model 230

AR20.00-P-1142RX



Install

6

Pour in new coolant



MODEL 209

AR20.00-P-1142QB



Engine 156 in model 230

AR20.00-P-1142RMG



Engine 272, 273 in model 230

AR20.00-P-1142RX


An engine filled with type 30 antifreeze must not be filled later on with conventional coolant as per Sheet 325.0 or 325.2. Type 30 antifreeze may not be mixed with other antifreezes and it must be replaced every 3 years!
Engine damage can occur otherwise.

 A special antifreeze (type 30) is available for the "light alloy corrosion in cooling circuit" repair case. Indications of light alloy corrosion in the cooling circuit are:
 Sludging or gel formation in cooling system
 Engine overheating
 Flow rate deficiency in cooler
In these cases, a warning label (type 30) is to be attached in a well-visible spot on the coolant expansion reservoir (2).

 Use type 30 antifreeze if warning label (type 30) is present on the coolant expansion reservoir (2).

 Use only approved anti-corrosion and antifreeze agents.

 Coolant mixing ratio

*BF20.00-P-1001-04A

 Engine 273 in model 209
Engine 273 in model 230Cooling system

*BF20.00-P-1001-02U

7

Seal coolant expansion reservoir (2) with cap (1)

8

Install lower engine compartment paneling



MODEL 209

AR61.20-P-1105P



MODEL 230

AR61.20-P-1105R

 Install lower engine compartment paneling after all maintenance operations have been completed.

9

Close engine hood



MODEL 209

AR88.40-P-1000Q



MODEL 230

AR88.40-P-1000R

 Cooling system

Number

Designation

Engine 273 in model 209

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

-

-

 Coolant mixing ratio

Number

Designation

Engine all

BF20.00-P-1001-04A

Coolant mixing ratio

Antifreeze/water

Up to -37°C

%

50/50

As of -38 °C

%

55/45

Sheet

BB00.40-P-0310-01A

Sheet

BB00.40-P-0325-00A

Sheet

BB00.40-P-0326-00A