Drain/Pour In Coolant - AR20.00-P-1142MFG

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Engine 139 in model 118, 177, 247

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Shown on model 177

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Shown on model 177

Courtesy of MERCEDES-BENZ USA

Shown on model 177

	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 overpressure. Do not pour coolant into beverage containers. Wear protective gloves, protective clothing and safety glasses.	AS20.00-Z-0001-01A
	Risk of injury caused by scraping or cutting body parts on sharp vehicle parts	Always wear protective gloves when working on or near sharp and non-deburred vehicle parts. Deburr repair panels.	AS00.00-Z-0017-01A
Notice	Notes on coolant		AH20.00-P-2080-01KOA
	Notes on coolant level		AH20.00-P-1142-01CW
	Drain off
1	Remove cap from engine cooling system expansion reservoir.
2	Remove bottom engine compartment lining.		AR61.20-P-1105MFR
3	Remove expansion rivets (9).	Clip remover	Fig 5
4	Remove bolts (7) and remove bumper support (8).
5	Insert suitable hose into fitting (3) at drain screw (1).
6	Open drain screw (1), drain coolant and collect in suitable container.	Open drain screw (1) only until coolant starts to drain off. Drain screw (1) and cooler high-temperature cooling circuit (2) will otherwise be damaged. Observe regulations to dispose of coolant.
7	Insert suitable hose into fitting (6) at drain screw (5).
8	Open drain screw (5), drain coolant and collect in suitable container.	Only open drain screw (5) to extent that coolant starts to drain off. Drain screw (5) and cooler medium-temperature circuit (4) will otherwise be damaged. Observe regulations for disposal of coolant.
9	Remove coolant line at additional cooler on right when viewed in direction of travel and collect escaping coolant with suitable container.	Observe regulations for disposal of coolant.	AR20.20-P-3866MFG
10	Close drain screws (1, 5).
11	Attach coolant line to additional cooler on right when viewed in direction of travel.		AR20.20-P-3866MFG
	Pour in
12	Pour in coolant and bleed engine cooling system.		AR20.00-P-1142-04A
	Coolant specifications	When filling, it is necessary to comply with the work procedure.	BB00.40-P-0310-01A
		Coolant mixing ratio	*BF20.00-P-1001-04A
		Engine 139 in model 118.353/653 Engine 139 in model 118.354/654 Engine 139 in model 177 Cooling system	*BF20.00-P-1001-06J
		Pressure pump	Fig 3
		Test cap	Fig 2
		Cooler vacuum filling device	Fig 6
		NTKL Adaption	Fig 1
		Electric vacuum pump	Fig 4
13	Check engine cooling system for leak tightness.
	Anticorrosion/antifreeze agents (Sheet 325.0)		BB00.40-P-0325-00A
			AR20.00-P-1010MFG
14	Install bumper support (8).
15	Screw in bolts (7) of bumper support (8).	Screw, front bumper support to cross strut	*BA62.30-P-1011-02O
16	Install expansion rivets (9) at bumper support (8).
17	Install lower engine compartment lining.		AR61.20-P-1105MFR

FROND END WITH FRONT REINFORCEMENT

Number	Designation		Model 118	Model 177
BA62.30-P-1011-02O	Screw, front bumper support to cross strut	Nm	17	17

FROND END WITH FRONT REINFORCEMENT

Number	Designation		Model 247
BA62.30-P-1011-02O	Screw, front bumper support to cross strut	Nm	17

COOLANT MIXING RATIO

Number	Designation				All engines, except engine 178 in model 190.381
BF20.00-P-1001-04A	Coolant mixing ratio	Antifreeze/water	Up to -25°C	%	-
			Up to -37°C	%	50/50
			As of -38°C	%	55/45
			Overview and specifications sheet		BB00.40-P-0310-01A
			References to sheet specification		BB00.40-P-0310ZZ

COOLING SYSTEM

Number	Designation				Engine 139 in model 118, 177, 247
BF20.00-P-1001-06J	Cooling system	Workshop replacement amount	Main circuit	Liter	11, 6
			Low-temperature circuit 1	Liter	2, 6
			Low-temperature circuit 2	Liter	-
		Antifreeze/water	to -37°C	%	50/50
			as from -38°C	%	55/45
			References to sheet specification		BB00.40-P-0310ZZ

Fig 1: Identifying NTKL Adaption (285 589 01 21 00)

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Fig 2: Identifying Test Cap (210 589 00 91 00)

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Fig 3: Identifying Pressure Pump (124 589 24 21 00)

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Fig 4: Identifying Electric Vacuum Pump (285 589 02 21 00)

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Fig 5: Identifying Clip Remover (452 589 01 63 00)

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Fig 6: Identifying Cooler Vacuum Filling Device (285 589 00 21 00)

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