Removing and installing expansion valve - AR83.30-P-5520M

MODEL 215, 220 

Fig 1: Identifying Expansion Valve Remove/Install Components - Model 215 And 220

Courtesy of MERCEDES-BENZ USA

	Removal, installation
	Explosion hazard  when performing welding or brazing work on closed air conditioning. Poisoning hazard  from inhaling overheated refrigerant vapors. Injury hazard  from skin and eye contact with liquid refrigerant.	Do not perform any type of welding work on closed air conditioning system or in its vicinity. Smoking and open flame prohibited. Wear protective goggles and protective gloves, work only in well-ventilated rooms. Perform repair work on air conditioning circuit only with system emptied.	AS83.00-Z-0001-01A
	Action to be taken in the event air conditioning is damaged or leaks		AH83.30-N-0004-01A
	Protect air conditioning circuit and components from moisture during repair work		AH83.30-N-0005-01A
	Notes on handling R134a refrigerant		AH83.30-N-0003-01A
1	Empty air conditioning (recycle), evacuate, charge, check for leaks	Add quantity of compressor oil removed to refrigerant circuit when charging air conditioning (new oil)
2	Remove wiper system		AR82.30-P-6400M
3	Unscrew nut (1)		*BA83.30-P-1001-01A
4	Pull off pressure lines	Plug openings (parts kit), Replace O-rings (4) (moisten with compressor oil)
5	Unscrew screws (3)		*BA83.30-P-1002-01A
6	Pull expansion valve (5) off of pressure lines (7)	Plug openings (parts kit), Replace O-rings (4) (moisten with compressor oil)
		Installation:  In order to avoid canting, tighten screws alternately
7	Replace receiver/drier		AR83.30-P-6520M
8	Install in opposite order

AIR CONDITIONING

Number	Designation		Model 215	Model 220
BA83.30-P-1001-01A	Nut on expansion valve	Nm	10	10
BA83.30-P-1002-01A	Bolt on expansion valve	Nm	10	10