Drain/pour in coolant

AR20.00-P-1142A

Drain/pour in coolant

09.06.2016

Engine

276.8 in model 207

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

2

Cap

3

Drain hose

3a

Fitting

4

Coolant expansion reservoir

6

Radiator

7

Drain screw

1

Coolant pump

3

Drain hose

5

Drain screw

 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 injury caused by fingers being jammed or pinched when removing, installing or aligning hoods, doors, trunk lid/rear-end door or sliding roof.

No parts of the body or limbs should be within the operating area when the components are moving.

AS00.00-Z-0011-01A



Notes on coolant

AH20.00-N-2080-01A

Drain off

1

Unscrew cap (2) on coolant expansion reservoir (4)

 Unscrew cap (2) slowly and relieve overpressure.

2

Remove lower engine compartment paneling

AR61.20-P-1105EW

Drain coolant at radiator

3

Push drain hose (3) onto left fitting (3a) on radiator (6)

4

Unfasten drain screw (7) at radiator (6) and drain coolant


Remove drain screw (7) until coolant flows out.
The drain screw (7) can be permanently damaged otherwise.

 Catch coolant in a suitable container.

 Observe regulations to dispose of coolant.

Drain coolant from coolant pump (1)

5

Detach charge air cooler at throttle valve actuator and at engine charge air ducts and place with attached lines to one side

AR09.41-P-6819ELS

6

Unfasten drain screw (5) at coolant pump (1) and push drain hose (3) on drain screw (5)

7

Further loosen drain screw (5) and drain coolant

 Catch coolant in a suitable container.

 Observe regulations to dispose of coolant.

Pour in

8

Tighten drain screw (7) on cooler (6) and detach drain hose (3) from fitting (3a)

9

Tighten drain screw (5) at coolant pump (1) and detach drain hose (3)

 Drain screw on coolant pump

*BA20.10-P-1008-01AA

10

Mount charge air cooler on throttle valve actuator and on engine charge air duct

AR09.41-P-6819ELS

11

Pour in coolant and ventilate engine cooling system



Notes on coolant level

AH20.00-P-1142-01CW



Anticorrosion/antifreeze agents (Sheet 325.0)

BB00.40-P-0325-00A



Coolant specifications

BB00.40-P-0310-01A

AR20.00-P-1142-04A

 Re-use clean coolant.

 Coolant mixing ratio

*BF20.00-P-1001-04A

 NTKL Adaption

*285589012100

 Electric vacuum pump

*285589022100

 Cooler vacuum filling device

*285589002100

 Test cap

*210589009100



Check

12

Check engine cooling system for leaktightness

AR20.00-P-1010ELA

13

Install lower engine compartment paneling

AR61.20-P-1105EW

 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 cooling system for proper operation

 Coolant pump, coolant thermostat

Number

Designation

Engine 276

BA20.10-P-1008-01AA

Drain screw on coolant pump

Stage 1

Nm

6

Stage 2

°

90

 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