Removing and installing receiver/drier - AR83.30-P-6520M

MODEL 215, 220 

Fig 1: Identifying Receiver/Drier Remove/Install Components - Model 215 And 220

Courtesy of MERCEDES-BENZ USA

	Removing, installing
	Risk of explosion  from welding or brazing work on closed air conditioning system. Risk of poisoning  from inhaling overheated refrigerant vapors. Risk of injury  from skin and eye contact with liquid refrigerant.	Do not carry out any welding work on the closed air conditioning system or in the surrounding area. No smoking or naked flames. Wear eye protection and protective gloves. Work only in well ventilated areas. Do not carry out repair work on the circuit of the air conditioning system unless the system is drained.	AS83.00-Z-0001-01A
	Conduct if air conditioning system is damaged or leaking		AH83.30-N-0004-01A
	Protect air conditioning circuit and components from moisture when carrying out repair work	All models fitted with air conditioning	AH83.30-N-0005-01A
	Notes for handling R134a refrigerant	All models with R134a refrigerant	AH83.30-N-0003-01A
1	Drain air conditioning (recycle)	Add extracted quantity of compressor oil to the refrigerant circuit again when filling the air conditioning system (fresh oil). Installation:  Drain air conditioning system, evacuate, fill, inspect for leaks
2	Remove lower engine compartment lining		AR61.20-P-1105M
3	Disconnect refrigerant pressure sensor connector (B12)
4	Unplug connector (B12/1) at temperature sensor
5	Remove screws (3) at fluid reservoir	Plug openings (parts kit) Installation:  Replace O-rings. When installing lines, moisten threads with compressor oil
			*BA83.30-P-1003-01A
6	Unscrew nuts (4)
7	Withdraw fluid reservoir downwards (1) with strap retainer
8	Loosen strap restrainer (5) with retaining lugs and pull off
9	Install in the reverse order	Observe quantity of oil to be added when replacing receiver/drier	*BF83.55-P-1005-01A
	Risk of accident  from vehicle starting off by itself when engine running. Risk of injury  from bruises and burns if you hold your hand into engine when it is started or when it is running.	Secure vehicle to prevent it moving off by itself. Wear closed and close-fitting work clothes. Do not grasp hot or rotating parts.	AS00.00-Z-0005-01A
10	Switch on air conditioning and allow it to idle for approx. 4 minutes	Set center nozzle temperature control dial to limit stop in blue range, turn left and right temperature dials on air-conditioning control to " Lo" Blower to max.
11	Check air conditioning for proper function	Air outlet temperature at center nozzle should not drop below +5 ° C, if necessary: ↓ carry out diagnosis
12	Find leaky point in air conditioning circuit		*WE58.40-Z-1002-20A

AIR CONDITIONING SYSTEM

Number	Designation		Model 215	Model 220
BA83.30-P-1003-01A	Lines on receiver/drier	Nm	10	10

A/C COMPRESSOR

Number	Designation			Refrigerant compressor 7SE12 in Model 215	Refrigerant compressor 7SE16 in Model 220
BF83.55-P-1005-01A	Additional oil filling capacity when replacing receiver/drier	Compressor oil	cm3	10	10
		Specifications for service products	Sheet	BB00.40-P-0362-00A	BB00.40-P-0362-00A

WORKSHOP EQUIPMENT

WE58.40-Z-1002-20A

Air conditioning leak detector