Remove/install expansion valve - AR83.30-P-5520NKB

MODEL 117, 156, 176, 242, 246

Shown on MODEL 246 with CODE 581 (Comfort automatic air conditioning) except CODE 228 (Stationary heater)

Fig 1: Expansion Valve Remove/Install Components - Shown On Model 246 With Code 581

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Shown on MODEL 242.980

Fig 2: Expansion Valve Remove/Install Components - Shown On Model 242.980

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Shown on model 246

Fig 3: Expansion Valve Remove/Install Components - Shown On Model 246 (1 Of 3)

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Fig 4: Expansion Valve Remove/Install Components - Shown On Model 246 (2 Of 3)

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Fig 5: Expansion Valve Remove/Install Components - Shown On Model 246 (3 Of 3)

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	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.	Do not 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
	Risk of injury to skin and eyes suffering scalding from contact with hot coolant spray. Risk of poisoning from swallowing coolant.	Do not open cooling system unless coolant temperature is below 90 °C. Open cap slowly and release the pressure. Do not pour coolant into beverage containers. Wear protective gloves, protective clothing and safety glasses.	AS20.00-Z-0001-01A
	Protect air conditioning circuit and components from moisture when carrying out repair work		AH83.30-P-0005-01A
	Procedure for a damaged or leaky air conditioning system		AH83.30-N-0004-01A
	Notes on coolant		AH20.00-N-2080-01A
	Notes on handling refrigerant R134a		AH83.30-N-0003-01A
	Notes on handling refrigerant R1234yf		AH83.30-P-0003-02A
	Remove/install
1	Drain air conditioning system, then disconnect air conditioning service unit	MODEL 176, 246 with CODE 2U8 (Refrigerant R-1234yf)	AR83.30-P-1760YF
1		MODEL 117, 156, 176, 242, 246 without CODE 2U8 (Refrigerant R-1234yf)	AR83.30-P-1760NKB
2	Remove coolant circulation pump (M13/5) from bracket (34)	MODEL 117, 156, 176, 242 (except 242.89), 246 with CODE 581 (Comfort automatic air conditioning) without CODE 228 (Auxiliary heater)	AR83.25-P-1170NKB
2	Remove coolant circulation pump (M13/5) from bracket (34)	MODEL 117, 156, 176, 242 (except 242.89), 246 with CODE 228 (Auxiliary heater) with CODE 581 (Comfort automatic air conditioning) MODEL 117, 156, 176, 242 (except 242.89), 246 with CODE 228 (Auxiliary heater) without CODE 581 (Comfort automatic air conditioning) The heater hoses at the coolant circulation pump (M13/5) remain connected.	AR83.25-P-1170NKA
3	Unscrew nut (32) and detach retaining clamp (33)	MODEL 117, 156, 176, 242 (except 242.89), 246 Retaining clamp (33) remains in vehicle.
4	Remove push button (42) on firewall	MODEL 242.890
5	Remove screw/bolt (40) and remove bracket (41)	MODEL 242.890
6	Remove charge air pipe downstream of turbocharger	MODEL 117, 156, 176, 246 with ENGINE 651	AR09.41-P-8620OLB
7	Unscrew nut (5) and remove low-pressure line (4) from expansion valve (1)	Seal off opening of low-pressure line (4) using suitable stop plug. Replace sealing ring (11) of low-pressure line (4).
7		Bolt/nut low-pressure and high-pressure line to expansion valve	*BA83.30-P-1002-01G
8	Unscrew nut (6) and remove high-pressure line (7) from expansion valve (1)	Seal opening of high pressure line (7) with a suitable stop plug. Replace sealing ring (11) of high-pressure line (7).
8		Bolt/nut low-pressure and high-pressure line to expansion valve	*BA83.30-P-1002-01G
9	Remove screws/bolts (8) and remove expansion valve (1)	If the screws/bolts (8) thread does not engage, pull forward threaded plate (12) using extraction hook, hold in place and screw in bolts (8) alternately. Otherwise the expansion valve (1) may tilt on the connection fitting (9). Seal openings of connection fitting (9) using suitable stop plugs. Replace sealing rings (10) of connection fittings (9).
		Bolt on expansion valve	*BA83.30-P-1001-01G
		Extraction hook	Figure
10	Install in the reverse order

AIR CONDITIONING

Number	Designation		MODEL 117	MODEL 156
BA83.30-P-1001-01G	Bolt on expansion valve	Nm	3, 5	3, 5

AIR CONDITIONING

Number	Designation		MODEL 176, 246	MODEL 242
BA83.30-P-1001-01G	Bolt on expansion valve	Nm	3, 5	3, 5

AIR CONDITIONING

Number	Designation		MODEL 117	MODEL 156
BA83.30-P-1002-01G	Bolt/nut low-pressure and high-pressure line to expansion valve	Nm	6	6

AIR CONDITIONING

Number	Designation		MODEL 176, 246	MODEL 242
BA83.30-P-1002-01G	Bolt/nut low-pressure and high-pressure line to expansion valve	Nm	6	6

Fig 6: Extraction Hook (140 589 02 33 00)

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