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

MODEL 208, 210 with CODE (580) Air conditioning or, for USA, Tempmatic with CODE (581a) Automatic air conditioning 

Illustrated on model 210 

Fig 1: Identifying Expansion Valve Components

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

	Removal, installation
	Explosion hazard  when performing welding or brazing work on closed air conditioning. Poisoning hazard  from inhaling overheated refrigerant vapors. Injury hazard from eye or skin contact with liquid refrigerant	Never perform welding or brazing work on the closed air conditioning system or in its vicinity. Smoking and open flame is prohibited. Wear protective goggles and protective gloves, work only in well ventilated rooms. Perform repair work on air conditioning circuit only if system is discharged.	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	All models with air conditioning	AH83.30-N-0005-01A
	Notes on handling R134a refrigerant	All models with R134a refrigerant	AH83.30-N-0003-01A
1	Drain air conditioning (recycle), evacuate, charge, check for leakage	Add quantity of compressor oil evacuated to refrigeration circuit when charging air conditioning
2	Remove left air inlet	Model 210	AR83.25-P-1403F
3	Remove right air inlet	Model 210	AR83.25-P-1404F
4	Remove wiper system	Model 210	AR82.30-P-6400F
5	Remove water collector	Model 210	AR83.25-P-1402F
		Model 208	AR83.25-P-1402K
6	Remove rubber grommet (1)	Model 210 only
7	Unscrew hex. nut (6)		*BA83.30-P-1001-01A
8	Remove pipe lines from expansion valve	Plug openings (parts kit)
9	Unscrew screws (5)		*BA83.30-P-1002-01A
10	Replace receiver/drier		AR83.30-P-6520E
11	Reinstall in opposite order	Replace O-rings (83, 84) (moisten with compressor oil)
12	Switch on air conditioning and allow it to idle for approx. 4 minutes	Set temperature dials to blue or automatic air conditioning to " Lo" Blower to max.
13	Check air conditioning for proper function	Air outlet temperature at center nozzle should not drop below +5 ° C, if necessary ↓ Perform diagnosis according to Diagnosis Manual
14	Find leaky point in air conditioning circuit		*WE58.40-Z-1002-20A

Air conditioning