Remove/install radiator - AR20.20-P-3865MEX

ENGINE 780.993 in MODEL 451.390/392/490/492 

Fig 1: Identifying Radiator Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Risk of death  when touching components on vehicles with high-voltage on-board electrical system	Do not touch components and open lines of the high-voltage on-board electrical system. Persons who wear electronic implants (e.g. cardiac pacemakers), must not  carry out any work on high-voltage on-board electrical systems.	AS54.00-Z-0001-01A
	Risk of injury  to skin and eyes suffering scalding from contact with hot coolant spray. 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
	Note on the voltage on-board electrical system		AH54.00-P-0010-01A
	Notes on coolant		AH20.00-N-2080-01A
	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Remove/install
1	Remove transmitter key and battery charger power supply plug
	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
2	Raise vehicle with vehicle lift
3	Remove condenser		AR83.30-P-6540MCC
4	Open cap (3) and suction off coolant from expansion reservoir (2)
5	Clamp off coolant hose (7) on cooler (1) with clamping device	Clamp	Figure
6	Release clamp (8) with hose clamp pliers and push to the rear on the coolant hose (7)	Hose clamp pliers	Figure
7	Detach coolant hose (7) from connection fitting	Collect escaping coolant in a suitable container and close connection fitting using a suitable stop plug. : Check clamp (8) and coolant hose (7) for damage; replace if necessary.
8	Unfasten click clamp (4) on cooler (1)
9	Unfasten expansion reservoir (2) with coolant hose (5) on the side from the bracket (9) (arrow b) and detach the coolant hose (5) from the cooler (1)	Collect escaping coolant in a suitable container and close connection fitting using a suitable stop plug.
10	Lay expansion reservoir (2) to the side with coolant hoses connected.	Secure expansion reservoir (2) against falling down using a suitable cable tie.
11	Carefully unlock and take off cooler (1) from the catch hooks (arrows a) on radiator support (6) to the front
12	Install in the reverse order
13	Bleed cooling system using Star Diagnosis
			AD00.00-P-2000-04MCC
			AR20.00-P-1142-06MEX
		Pressure pump	Figure
		Filling device	Figure
14	Check cooling system for leaktightness		AR20.00-P-1010MCC

Fig 2: Identifying Filling Device (450 589 20 63 00)

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Clamp (000 589 54 37 00)

Courtesy of MERCEDES-BENZ USA

Fig 4: Identifying Pressure Pump (450 589 07 21 00)

Courtesy of MERCEDES-BENZ USA

Fig 5: Identifying Hose Clamp Pliers (003 589 03 37 00)

Courtesy of MERCEDES-BENZ USA