Check air conditioning system for leakage - AR83.30-P-1761GQ

MODEL 166.0/8

MODIFICATION NOTES

13.9.12

Air Conditioning / climate control system capacity

TYP 166 mit CODE 582

BF83.00-P-1001-01F

	Check
	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
	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
	Notes on handling refrigerant R134a		AH83.30-N-0003-01A
1	Evacuate air conditioning system	MODEL 166.0/8 Air conditioner service unit R134a	AR83.30-P-1760CW
2	Fill air conditioning system with nitrogen	Fill system with a system pressure of 15 bar only when engine is cold. This system pressure must be maintained for at least 4 hours. Fill high and low-pressure side of air conditioning with nitrogen. Temperature changes during the pressure test can cause pressure surges, e.g. due to weather changes, transition from day to night, cooling down of engine compartment. Make sure the ambient conditions remain constant. Air conditioner pressure and leak tester (mobile)
3	Check refrigerant circuit of air conditioning system for leak tightness	Check evaporator for leaks Check for leaks using a leak detection spray in case of pressure drop.	AR83.30-P-5550Q
		Leak detection spray for USA	*BR00.45-Z-1004-03A
		Leak detection spray In the event of pressure loss and no leak can be found in the refrigerant circuit, see: ↓ Check refrigerant circuit using leak detector additive.	*BR00.45-Z-1002-03A
4	Drain nitrogen
5	Light up the complete engine compartment with a UV lamp, if necessary remove the remains of the existing contrast agent using special cleaner and wash the engine	Air conditioner leak detector
6	Charge air conditioning system with refrigerant	MODEL 166.0/8	AR83.30-P-1760CW
7	Check leak tightness of refrigerant circuit using leak detector additive	Carry out steps as per the operating instructions of the UV leak detection kit. Only use the approved leak detector additive. If it is proven that a different leak detector additive has been used, we will refuse to reimburse costs within the warranty and goodwill period. Daimler AG reserves the right to perform reexaminations. Air conditioner leak detector
8	Examine refrigerant circuit of air conditioning system for leak detector additive	If no leaks are found in the refrigeration circuit: ↓ Remove expansion valve
8			AR83.30-P-5520GQ
9	Examine area between expansion valve and firewall for leak detector additive	If no traces of leak detector additive can be found: ↓ Check evaporator for leaks
9			AR83.30-P-5550Q
10	Charge air conditioning system		AR83.30-P-1760CW
10	Charge air conditioning system	MODEL 166 with CODE 582 (Rear air conditioner) MODEL 166 without CODE 582 (Rear air conditioner)	*BF83.00-P-1001-01F

AIR CONDITIONING/AUTOMATIC AIR CONDITIONING

Number	Designation			MODEL 166 except CODE 582	MODEL 166 with CODE 582
BF83.00-P-1001-01F	Filling capacity for air conditioning/automatic air conditioning	Refrigerant R134 a	g	1050	1300
BF83.00-P-1001-01F		Specification		MB 361.0 refrigerant R 134a A 000 989 03 48	MB 361.0 refrigerant R 134a A 000 989 03 48

REPAIR MATERIALS

Number	Designation	Order number
BR00.45-Z-1002-03A	Leak detection spray	Christof Fischer GmbH,
BR00.45-Z-1004-03A	Leakage detection spray for USA	LIQUI MOLY