Drain coolant, fill up and check cooling system for leaks

AR20.00-S-1140E

25.05.2020

Model	447 with engine 274, 622.9, 651
Model	448 with engine 274

Modification notes

20.05.2020

Work procedure revised

The whole document

Drain coolant, fill up and check cooling system for leaks

Shown with ENGINE 651

1	Drain valve

S20.00-4528-06

Shown with engine 622

2	Clip
3	Coolant hose

S20.20-4542-06

 Danger	Risk of death caused by vehicle slipping or toppling off of the lifting platform.	Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer.	AS00.00-Z-0010-01A
 Warning	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
Topical note	Notes on avoiding damage through contamination and foreign objects		AH00.00-P-5000-01A
Topical note	Notes on coolant		AH20.00-N-2080-01A
	Notes on coolant level		AH20.00-P-1142-01CW
	Drain off
1	Remove cap of the coolant expansion reservoir.	 Turn cap of coolant expansion reservoir counterclockwise through half a revolution, release overpressure, and then remove cap.
2	Remove front lower engine compartment lining.		AR61.20-S-1105E
3	Attach drain hose to drain valve (1).	Model 447 with engine 274, 651 Model 448 with engine 274
		 Use drain hose of  vacuum-type cooling system filler.
		 Cooler vacuum filling device	*285589002100
	Drain off
4	Open drain valve (1) and drain off coolant.	Model 447 with engine 274, 651 Model 448 with engine 274
		 Cooler vacuum filling device	*285589002100
5	Close drain valve (1).	Model 447 with engine 274, 651 Model 448 with engine 274
		 Position suitable receptacle under coolant hose (3).
		 Drain screw at cooler (reference value)	*BA20.20-N-1001-01B
6	Remove drain hose.	Model 447 with engine 274, 651 Model 448 with engine 274
7	Clamp off coolant hose (3) on coolant thermostat housing.	Model 447 with engine 622.9
		 Commercially available devices/tools Pinch-off pliers
8	Release clamp (2) and move.	Model 447 with engine 622.9
		 Commercially available devices/tools Hose clamp pliers with wire cable
9	Remove coolant hose (3) from coolant thermostat housing.	Model 447 with engine 622.9
		 When doing so, catch coolant with suitable container.
10	Remove pinch-off pliers from coolant hose (3).	Model 447 with engine 622.9
		 When doing so, catch coolant with suitable container.
11	Attach coolant hose (3) to coolant thermostat housing.	Model 447 with engine 622.9
		 Commercially available devices/tools Hose clamp pliers with wire cable
		 Position clamp (2) correctly again. Check clamp (2) for damage.
		If damage is present,
		
		Replace clamp (2).
	Pour in
12	Pour in coolant and bleed engine cooling system.		AR20.00-S-1142-04E
	Service Information: Coolant	Model 447 with engine 274, 622.9, 651	SI20.00-S-0001B
		 Model 447, 448 with engine 274Coolant	*BF20.00-N-1001-01K
		 MODEL 447 with ENGINE 622, 651Coolant	*BF20.00-N-1001-01A
		 Test cap	*210589009100
		 Cooler vacuum filling device	*285589002100
	Check
13	Check engine cooling system for leak tightness.		AR20.00-S-1010E

 Cooler, coolant hoses, coolant lines

Number	Designation		Engine 274 in model 448 Engine 274, 651 in model 447
BA20.20-N-1001-01B	Drain screw at cooler (reference value)	Nm	3

 Engine cooling

Number	Designation			Engine 622.951 except code H12 (Auxiliary hot-water heater)	Engine 622.951 with code H12 (Auxiliary hot-water heater)
BF20.00-N-1001-01A	Coolant	Total filling capacity	Liter	10,7	13,7
		Corrosion/antifreeze down to -37 °C	Liter	5,4	6,9
		Corrosion/antifreeze down to -45 °C	Liter	5,9	7,5
		Sheet		BB00.40-P-0310-01A	BB00.40-P-0310-01A
		Sheet		BB00.40-P-0325-00A	BB00.40-P-0325-00A
		Sheet		BB00.40-P-0325-06A	BB00.40-P-0325-06A
		Sheet		BB00.40-P-0326-06A	BB00.40-P-0326-06A

 Engine cooling

Number	Designation			Engine 651.950 except code H12 (Auxiliary hot-water heater)	Engine 651.950 with code H12 (Auxiliary hot-water heater)
BF20.00-N-1001-01A	Coolant	Total filling capacity	Liter	10,4	13,4
		Corrosion/antifreeze down to -37 °C	Liter	5,2	6,7
		Corrosion/antifreeze down to -45 °C	Liter	5,7	7,4
		Sheet		BB00.40-P-0310-01A	BB00.40-P-0310-01A
		Sheet		BB00.40-P-0325-00A	BB00.40-P-0325-00A
		Sheet		BB00.40-P-0325-06A	BB00.40-P-0325-06A
		Sheet		BB00.40-P-0326-06A	BB00.40-P-0326-06A

 Engine cooling

Number	Designation			Engine 274 in model 447, 448
BF20.00-N-1001-01K	Coolant	Total filling capacity	Liter	10,4
		Corrosion/antifreeze down to -37 °C	Liter	5,2
		Corrosion/antifreeze down to -45 °C	Liter	5,7
		Sheet		BB00.40-P-0310-01A
		Sheet		BB00.40-P-0325-00A
		Sheet		BB00.40-P-0325-06A
		Sheet		BB00.40-P-0326-06A

210 589 00 91 00

Test cap

285 589 00 21 00

Cooler vacuum filling device

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