Remove/install A/C compressor · ar8330l5300a · Mercedes-Benz WIS

AR83.30-L-5300A

Remove/install A/C compressor

12.7.10

MODEL 667, 668, 670 with CODE (H03) Air conditioning in front section

L83.30-0005-12

Shown on refrigerant compressor of 904 engine

1 Bolt

2 Manifold

3 Seals

4 AC compressor

5 Combination bracket

6 11/16" screw-in pipe connection

7 7/8" screw-in pipe connection

8 Refrigerant line, low pressure

9 Refrigerant line, high pressure

10 Screw

11 Washer

L83.30-0006-01

12 Connector

 	Remove/Install
Danger!	Risk of explosion from welding or soldering work on closed air conditioning system. Risk of poisoning. Inhaling overheated refrigerant vapors may be toxic. Risk of injury. Contact with liquid refrigerant may result in injury to the skin and eyes.	Do not carry out any welding work on the closed air conditioning system or in the surrounding area. No smoking or open flames. Wear eye protection 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 discharged.	AS83.00-Z-0001-01A
Danger!	Risk of accident from vehicle starting off by itself when engine running. Risk of injury from bruises and burns if you place your hand into the engine when it is started or when it is running.	Secure vehicle to prevent it from moving off by itself. Wear closed and close-fitting work clothes. Do not grasp hot or rotating parts.	AS00.00-Z-0005-01A
	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 on handling refrigerant R134a	All models with R134a refrigerant	AH83.30-N-0003-01A
1	Discharge air conditioning system		AR83.30-L-1780A
2	Remove poly V-belt	Engine 602.984/985	AR13.22-D-1202B
		Engines 904.904/908/923	AR13.22-D-1202D
3	Remove connector (12)	 Mark connector (12).
4	Disconnect refrigerant lines (8, 9) from screw-in pipe connections (6, 7)	7/8" screw-in pipe connection, refrigerant compressor to refrigerant line	*BA83.40-N-1004-01B
		11/16" screw-in pipe connection, refrigerant compressor to refrigerant line	*BA83.40-N-1005-01B
5	Unscrew bolts (10).	 Bolt, refrigerant compressor to combination holder	*BA83.40-N-1003-01B
6	Remove refrigerant compressor (4)	 Together with manifolds (2) and refrigerant lines (8, 9).
7	Unscrew screws (1)	 Bolt, manifold to connecting piece	*BA83.40-N-1002-01B
8	Remove manifold (2)	Installation: Install new sealing rings (3).
9	Remove refrigerant compressor connecting piece (4)		AR83.55-L-1100A
10.1	Replace refrigerant compressor (4)	Follow-up work:
		Remove expansion valves	AR83.30-L-5530A
		Total capacity	*BF83.30-N-1009-01A
10.2	Reconditioning refrigerant compressor (4)	Follow-up work:
		Remove refrigerant compressor cylinder roller bearing (4)	AR83.55-L-5350A
		Remove electromagnetic clutch	AR83.30-L-7682A
		Remove refrigerant compressor shaft seal (4)	AR83.30-L-7686A
		Total capacity	*BF83.30-N-1009-01A
11	Replace receiver/drier	 The fluid reservoir must be replaced whenever work is carried out in the air conditioning system.	AR83.30-L-6520A
12	Install in the reverse order
	Inspecting
13	Evacuate air conditioning system and check for leaks		AR83.30-L-1762A
14.1	Fill and top up air conditioning system (gaseous)		AR83.30-L-1767A
14.2	Fill air conditioning system (liquid)		AR83.30-L-1777A
15	Check function of air conditioning	 Run engine at idling speed for about 5 minutes and check all the component functions which are of relevance for proper operation of the air conditioning system.
16	Perform quick test on air conditioning system		AR83.30-L-1209A

 Air conditioning

Number	Designation		Models 667, 668, 670 with Code H03


BA83.40-N-1002-01B	Bolt, manifold to connector	Nm	23
BA83.40-N-1003-01B	Bolt, A/C compressor to combination bracket	Nm	23
BA83.40-N-1004-01B	Pipe union 7/8", A/C compressor to refrigerant line	Nm	33 (4)
BA83.40-N-1005-01B	11/16" screw-in pipe connection, refrigerant compressor to refrigerant line	Nm	44 (4)

Air conditioning system

Number	Designation			Models 667, 668, 670 with Code H03


BF83.30-N-1009-01A	Total filling capacity, refrigerant		kg	1.225 (0.005)
		Specifications for service products	Sheet	BB00.40-P-0361-00A

Referenced documents

ah8330n000301a Notes on handling refrigerant R134a
ah8330n000501a Protect air conditioning circuit and components from moisture when carrying out repair work
ar1322d1202b Remove/install poly-V belt
ar1322d1202d Remove/install poly-V belt
ar8330l1209a Performing short check on air conditioning
ar8330l1762a Evacuating air conditioning, checking for leaks
ar8330l1767a Fill air conditioning system, replenish (gaseous)
ar8330l1777a Fill air conditioning system (liquid)
ar8330l1780a Evacuating air conditioning
ar8330l5530a Remove/install expansion valve with coolant line
ar8330l6520a Remove/install fluid reservoir
ar8330l7682a Removing and installing electromagnetic clutch
ar8330l7686a Replacing shaft seal ring on A/C compressor
ar8355l1100a Removing, installing connection piece of AC compressor
ar8355l5350a Removing, installing cylinder roller bearing of AC compressor
as0000z000501a 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.
as8300z000101a 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.