Draining and filling coolant Antifreeze protection table - ra20006010010x(0010)

WARNING: This page does not describe the selected car, but rather 42 other vehicles, including the 1999 Mercedes-Benz S600, 1999 Mercedes-Benz S500, 1999 Mercedes-Benz S420, 1999 Mercedes-Benz S320, and 1999 Mercedes-Benz CL600. However, it is still accessible from the selected car via links, so may be relevant.

Engines 601, 602 (except 602.98), 603

Preceding work:

Engine compartment cladding bottom removed (01-006).

Operation no. of operation texts and operation values or standard texts and flat rates; 20-1142

Fig 1: Draining And Pouring-In Coolant

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Heater switch	set to maximum heating capacity.
Cap (8)	take off, fit on. Open cap only when coolant temperatures below 90 °C.
Drain plug (1)	open, close, 1.5 - 2 Nm, drain coolant (step 2).
Drain plug (12) and drain connection	open, close, 30 Nm, drain coolant (steps 3, 4).
Old coolant	flush out.
Coolant	pour in up to marking on expansion tank (10) (step 6).
Engine	run until coolant thermostat opens, approx. 90 - 100 °C (step 7).
Coolant level	check (step 8).
Cooling system	check for leaks (Testing cooling system for leaks ).

TOTAL CAPACITIES OF COOLING SYSTEM WITH HEATING SYSTEM AND MIXING RATIO OF ANTICORROSION/ANTIFREEZE AGENT⁽¹⁾ AND WATER⁽²⁾ IN LITERS

Model

Engine

Total capacity of cooling system with heating system

Mixing ratio anti-corrosion/antifreeze agent/water for antifreeze prot. down to

-37°C (50 % by vol.)

-45 °C (55 % by vol.)

124

601

8.5

4.25/4.25

4.75/3.75

9⁽³⁾

4.5/4.5

5/4

602, 603.91

4.5/4.5

5/4

9.5⁽³⁾

4.25/4.25

5.25/4.25

602.96

3.5/4.5

4.5/3.5

126

603.96/97

4.5/5.5

5.5/4.5

140

603.97

4.5/5.5

5.4/4.5

201

601.911

8.5

4.25/4.25

4.75/3.75

602.911, 602.96

3.5/4.5

4.5/3.5

202

601

3.5/4.5

4.5/3.5

⁽¹⁾	See Service Product Specifications sheet 325.1 and 325.2

⁽²⁾	See Service Product Specifications sheet 310

⁽³⁾	With air conditioning/automatic climate control

Tightening torques	Nm
Radiator drain plug	1.5 - 2
Crankcase drain plug	30
Drain connection (engines 602 and 603 only)	30

Special tool

Fig 2: Identifying (124 589 15 21 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

COMMERCIALLY AVAILABLE TOOLS AND TESTERS

Designation	e. g. make, order no.
Antifreeze protection tester	SUN ElektriK Deutschland GmbH
Duo-Check 7182	Auf der Hulb 5
	40822 Mettmann
	No. 010357

Disposing of coolants

Observe legal requirements and local waste water regulations.

Refer to the Environmental Protection Catalog issued by MBVD/PWU for workshops located in Germany.

Anticorrosion/Antifreeze protection

The anticorrosion/antifreeze agent performs the following tasks:

adequate corrosion and cavitation protection for all components
antifreeze protection
increasing the boiling point so that the coolant does not evaporate so rapidly. Ejection of coolant is avoided at high coolant temperatures.

The concentration of 50 % offers antifreeeze protection down to approx. - 37°C.

A higher concentration is only recommended for even lower ambient tempertures.

A concentration of 55 % by vol. of anticorrosion/antifreeze agent offers antifreeze protection down to approx. - 45°C.

More than 55 % by vol. of anticorrosion/antifreeze agent reduces the antifreeze protection and impairs the heat dissipation.

Use only approved anticorrosion/antifreeze agents (see Specifications for Service Products Sheet 325.0).

Draining

Set heating switch to maximum heating capacity.
Open cap on expansion tank in stages, allow system pressure to escape and remove cap.

Operational monitoring of coolant

Check the coolant for resistance to low temperatures at the start of the cold season of the year.

In countries with high outside temperatures, check the anticorrosion/antifreeze agent concentration once a year.

The anticorrosion protection in the coolant is reduced over the period of operation. The coolant then has a sharply corrosive effect.

The maximum permissible period of use or the specified coolant in car engines is 3 years.

Open cap only when coolant temperature is below 90°C.
Open drain plug on the radiator.
NOTE: An appropriate extension hose can be fitted to the drain connection for collecting the coolant.

Installation instruction

Tightening torque 1.5 - 2 Nm.

Fig 3: Identifying Drain Plug On Models Without Air Conditioning
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 4: Identifying Drain Plug On Models With Air Conditioning
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

On models with air conditioning, open flap for towing lug at front right of under-bumper moulding.

Fig 5: Locating Drain Plug
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

NOTE: On models with air conditioning, the plug below the righthand wheelhouse at the noise encapsulation should be removed. An extension hose can be fitted onto the drain connection of the radiator through this opening.

Fig 6: Identifying Extension Hose
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Unscrew drain plug (12) on crankcase.
Installation instruction

Tightening torque 30 Nm.

Engine 601

Fig 7: Identifying Drain Plug
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

NOTE: Engines 602 and 603 have a drain connection (12a) in place of the drain plug. A hose can be fitted onto this drain connection for draining.

Fig 8: Identifying Drain Connection
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Installation instruction

Tightening torque 30 Nm.

Filling in coolant
Flush out old coolant.
Slowly pour in coolant up to the marking (arrow) on the expansion tank.

Fig 9: Identifying Marking On Expansion Tank
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

NOTE: The filler hose can be pressed down (arrow) when pouring in the coolant to ensure that it flows more quickly from the expansion tank into the radiator and engine.
Run engine until the coolant thermostat opens (coolant temperature approx. 90 - 100°C).

Fig 10: Pressing Down Filler Hose
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

NOTE: Close filler connection at expansion tank from a coolant temperature of approx. 60 - 70°C.
Check coolant level; top up to the specified marking, if necessary.
Check cooling system for leaks (Testing cooling system for leaks ).