Drain/pour in coolant

AR20.00-P-1142OMA

Drain/pour in coolant

09.06.2016

Engine

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

Modification notes

12.02.2014

Work procedure altered and special tools for electrical vacuum pump and NTKL adaptation, added.

Operation steps 14 to 26

AR20.00-P-1142-04A

26.09.2014

Mischungsverhältnis Kühlmittel

BF20.00-P-1001-04A

1

Cap

4

Drain screw for radiator

2

Coolant expansion reservoir

5

Drain screw on crankcase

3

Fitting on radiator

 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

Drain off

1

Unscrew cap (1) on coolant expansion reservoir (2)

 Unscrew cap (1) slowly and relieve excess pressure.

2.1

Remove bottom section of soundproofing

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

AR94.30-P-5300EW

2.2

Remove lower engine compartment paneling

Engine 651 in model 221

AR61.20-P-1105SX

3

Push drain hose onto fitting on radiator (3)

4

Loosen drain screw (4) at radiator and drain coolant.


Remove radiator drain screw (4) until the coolant flows out.
Permanent damage to the radiator drain screw (4) will occur otherwise.

 Catch coolant in a suitable container.

 Observe regulations to dispose of coolant.

5

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

6

Slide drain hose onto crankcase drain screw (5)

7

Unfasten crankcase drain screw (5); drain off coolant

 Catch coolant in a suitable container.

 Observe regulations to dispose of coolant.

8

Tighten crankcase drain screw (5) and detach drain hose from crankcase drain screw (5)

 Coolant drain plug on crankcase

*BA20.00-P-1001-02A

Pour in

9

Pour in coolant and ventilate engine cooling system

AR20.00-P-1142-04A



Coolant specifications

BB00.40-P-0310-01A



Anticorrosion/antifreeze agents (Sheet 325.0)

BB00.40-P-0325-00A

 Use clean coolant again.

 Coolant mixing ratio

*BF20.00-P-1001-04A

 NTKL Adaption

*285589012100

 Electric vacuum pump

*285589022100

 Test cap

*210589009100

 Cooler vacuum filling device

*285589002100



Check

10

Check engine cooling system for leaktightness

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

AR20.00-P-1010OMA

Engine 651 in model 221

AR20.00-P-1010SX

11.1

Install bottom section of soundproofing

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

AR94.30-P-5300EW

11.2

Install lower engine compartment paneling

Engine 651 in model 221

AR61.20-P-1105SX

 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

12

Perform an engine test run and check engine cooling system for proper operation

 Engine cooling, general

Number

Designation

Engine 651

BA20.00-P-1001-02A

Coolant drain plug on crankcase

Nm

12

 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