Drain/fill low-temperature circuit coolant - AR09.41-P-6834LW

MODEL 205 with ENGINE 274.9, 651 

MODEL 205 with ENGINE 276.8 

MODEL 218 with ENGINE 274.9 

Fig 1: Identifying Drain/Fill Low-Temperature Circuit Coolant Components - Shown On Model 205

Courtesy of MERCEDES-BENZ USA

Shown: engine 651 in model 205 except code ME04 (HD 20 kW variant) 

	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
	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
	Lowering
1	Remove upper engine cover	MODEL 205 with ENGINE 274.9, 276.8 MODEL 218 with ENGINE 274.9
2	Unscrew cap (1) on low-temperature circuit coolant expansion reservoir (2)
3	Remove bottom engine compartment paneling at front	MODEL 218 with ENGINE 274.9	AR61.20-P-1105EW
		MODEL 205 with ENGINE 274.9, 276.8, 651	AR61.20-P-1105LW
4	Open drain screw on coolant hose (3) and drain off coolant	Collect coolant in a suitable container.
5	Push drain hose onto drain fitting (3)
6	Switch on ignition for 5 seconds and then switch off again	Repeat the procedure after a waiting time of about 30 s twice in order to empty the low temperature coolant circuit.
7	Tighten down drain screw on coolant hose (3)
	Filling
8	Pour in coolant and bleed cooling system		AR20.00-P-1142-04A
		Use clean coolant.
		Coolant mixing ratio	*BF20.00-P-1001-04A
		Test cap	Figure
		Cooler vacuum filling device	Fig 5
		NTKL Adaption	Fig 4
		Electric vacuum pump	Fig 3
	Check
9	Check low-temperature circuit for leaktightness	MODEL 205 with ENGINE 274.9, 276.8, 651 MODEL 218 with ENGINE 274.9
		MODEL 205 with ENGINE 274.9, 651	AR09.41-P-1010LW
10	Tighten down cap (1) on low-temperature circuit coolant expansion reservoir (2)
	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
11	Perform an engine test run and check cooling system for proper operation
12	Install front engine compartment paneling at front	MODEL 218 with ENGINE 274.9	AR61.20-P-1105EW
		MODEL 205 with ENGINE 274.9, 276.8, 651	AR61.20-P-1105LW
13	Install upper engine cover	MODEL 205 with ENGINE 274.9, 276.8 MODEL 218 with ENGINE 274.9

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

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Electric Vacuum Pump (285 589 02 21 00)

Courtesy of MERCEDES-BENZ USA

Fig 4: Identifying NTKL Adaption (285 589 01 21 00)

Courtesy of MERCEDES-BENZ USA

Fig 5: Identifying Cooler Vacuum Filling Device (285 589 00 21 00)

Courtesy of MERCEDES-BENZ USA