Drain, evacuate and recharge air conditioning, check for proper operation and check for leaks · ar8330s1760ca · Mercedes-Benz WIS

AR83.30-S-1760CA

Drain, evacuate and recharge air conditioning, check for proper operation and check for leaks

24.05.2019

Model	415
	with code H06 (Air-conditioning system)
	with code HX1 (Refrigerant R-1234yf)
Model	415
	with code HH9 (Air conditioner, automatic heater control)
	with code HX1 (Refrigerant R-1234yf)

Modification notes

14.11.2018	Total filling capacity - refrigerant		BF83.00-N-1007-01B
23.05.2019	Total filling capacity - refrigerant		BF83.00-N-1007-01B

Drain, evacuate and recharge air conditioning, check for proper operation and
check for leaks

Shown on model 415 with engine 607

1	Air conditioning service unit
2	Manometer battery
3	Connector

S83.30-4554-06

 Danger	Risk of fire due to ignition of R1234yf refrigerant on hot components. Risk of poisoning caused by inhaling overheated refrigerant vapors. Risk of injury to skin and eyes caused by contact with escaped R1234yf refrigerant and when working on pressurized parts. Risk of explosion due to formation of ignitable refrigerant/air mixtures	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 rooms. Carry out repair work on the air conditioning system circuit only after the system has been evacuated.	AS83.00-Z-0007-01A
Topical note	Procedure for a damaged or leaky air conditioning system		AH83.30-N-0004-01A
Topical note	Protect air conditioning circuit and components from moisture when carrying out repair work		AH83.30-N-0005-01A
	Notes on handling refrigerant R1234yf		AH83.30-P-0003-02A
	Connect
1	Connect air conditioning service unit (1) with connector (3) at Schrader valve of refrigerant line	 When connecting and when operating the air conditioning service unit (1) the complete work procedure must be conducted in accordance with the operator's manual as issued by the manufacturer.
	Analyze
2	Analyze refrigerant in air conditioning system	 The refrigerant must be analyzed using an analysis device integrated into the air conditioning service unit (1) or an external analysis device with data transfer to the air conditioning service unit (1).
		 A positive gas analysis is given when the refrigerant exhibits a degree of purity of min. 98.5%.
		For a positive gas analysis.
		
		Extract refrigerant from air conditioning system into internal container of air conditioning service unit (1).
		For a negative gas analysis.
		
		The gas analysis must be performed up to three times. After a third negative gas analysis, the analysis device must be verified in accordance with the operator's manual.
		If the analysis device is functional and the gas analysis negative.
		
		Extract contaminated refrigerant from air conditioning system into a recycling cylinder.
	Draining
3	Drain air conditioning system using air conditioning service unit (1)	 The volume of compressor oil extracted must be documented.
	Check
4	Check desiccant cartridge for re-usability
Topical note	Protect air conditioning circuit and components from moisture when carrying out repair work		AH83.30-N-0005-01A
		If necessary.
		
		Replace drier cartridge.
			AR83.30-S-6525C
	Evacuate
5	Use the air conditioning service unit (1) to clean the refrigerant and evacuate the refrigerant circuit
6	Check vacuum with air conditioning service unit (1)	If the air conditioning service unit (1) shows a fault message, then this is an indication that there is a leak in the refrigerant circuit.
		
		Check air conditioning system for leakage.
			AR83.30-S-1761C
	Filling
7	Add new compressor oil to the refrigerant circuit according to the oil filling quantity noted during extraction
	Compressor oils (specification 362.1)		BB00.40-P-0362-01A
		 Only the approved compressor oil may be used. If it is proven that a different compressor oil has been used, we will refuse to reimburse costs within the warranty and goodwill period. Daimler AG reserves the right to perform reexaminations.
		 Correct compressor oil in the refrigerant circuit. Otherwise, a wrongly measured oil filling capacity could damage the refrigerant compressor.
		 If the refrigerant compressor is removed, no more additional oil quantities may be added. Otherwise, this may lead to malfunction or damage of the air conditioning system.
		 Depending on the repair case, the oil filling quantity may need to be adjusted accordingly.
		 Refrigerant compressor filling capacity (new refrigerant compressor is pre-filled)	*BF83.00-N-1001-01B
		 Compressor oil refill quantity when replacing condenser	*BF83.00-N-1002-01B
		 Compressor oil refill quantity when replacing evaporator	*BF83.00-N-1003-01B
		 Compressor oil refill quantity when replacing desiccant cartridge	*BF83.00-N-1004-01B
		 Compressor oil refill quantity when replacing refrigerant line	*BF83.00-N-1005-01B
		 Refill quantity of compressor oil when air conditioning system is suddenly emptied (e.g. line break)	*BF83.00-N-1006-01B
8	Fill air conditioning system using air conditioning service unit (1)	 Total filling capacity - refrigerant	*BF83.00-N-1007-01B
	Pressure test
9	Run pressure test using air conditioning service unit (1)	In the event of a pressure drop during the pressure test.
		
		Check air conditioning system for leakage.
			AR83.30-S-1761C
	Disconnect
10	Disconnect air conditioning service unit (1) with connector (3) from Schrader valve of refrigerant line
	Check
 Warning	Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.	Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.	AS00.00-Z-0005-01A
11	Run engine at idle speed for about 4 minutes and check all the component functions which are of relevance for proper operation of the air conditioning system