Remove/install intake manifold filling valve - AR83.30-P-5535MCC

MODEL 451.3/4 with CODE (I01) Air conditioning Plus 

Fig 1: Identifying Intake Manifold Filling Valve Remove/Install Components

Courtesy of MERCEDES-BENZ USA

MODIFICATION NOTES

8.4.10

Special tool for removal/installation of service valve exchanged

Operation step 3

	Remove/install
	Risk of explosion  caused by welding or soldering work on closed air conditioning system. Risk of poisoning  caused by inhaling overheated refrigerant vapors. Risk of injury  to skin and eyes caused by contact with liquid refrigerant.	Never perform welding work on or near a closed air conditioning system. No smoking or open flames. Wear safety glasses and protective gloves. Work only in well ventilated areas. Carry out repair work on the air conditioning system circuit only after the system has been drained.	AS83.00-Z-0001-01A
	Procedure for a damaged or leaky air conditioning system		AH83.30-N-0004-01A
	Protect air conditioning circuit and components from moisture when carrying out repair work		AH83.30-N-0005-01A
	Notes on handling R134a refrigerant	Air conditioning with refrigerant R134a	AH83.30-N-0003-01A
1	Discharge air conditioning system	Evacuate air conditioning and then fill.	AR83.30-P-1760MCC
2	Disconnect air conditioner service unit from the service valve of the suction line (2) and the service valve of the pressure line (3)	Air conditioner service unit
3	Remove valve element (1) on service valve of suction line (2)	In model 451.391/491, the valve insert (1) must be removed using a commercially available valve wrench for Schrader valves (connection width 4.5 mm). In model 451 (except 451.391/491), the valve wrench must be used.
		Valve wrench	Fig 2
4	Install in the reverse order

Fig 2: Identifying Valve Wrench (203 589 03 10 00)

Courtesy of MERCEDES-BENZ USA