Remove/Install Refrigerant Pressure Sensor - AR83.30-P-5430LF

Model 217, 222 

Except Code 1U6 (R744 refrigerant) 

Shown On Model 222 

Fig 1: Refrigerant Pressure Sensor Components Location - Model 222 Except Code 1U6

Courtesy of MERCEDES-BENZ USA

	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 R1234y 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. Model 217 with code 2U8 (Alternative refrigerant) except code 1U6 (R744 refrigerant) Model 222 with code 2U8 (Alternative refrigerant) except code 1U6 (R744 refrigerant)	AS83.00-Z-0007-01A
	Risk of poisoning  caused by inhaling overheated refrigerant vapors from an air conditioning system containing R134a. Risk of injury  to skin and eyes caused by contact with liquid R134a refrigerant and when working on pressurized parts	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. Model 217 except code 1U6 (R744 refrigerant) except code 2U8 (Alternative refrigerant) Model 222 except code 1U6 (R744 refrigerant) except code 2U8 (Alternative refrigerant)	AS83.00-Z-0006-01A
Notice	Protect air conditioning circuit and components from moisture when carrying out repair work		AH83.30-P-0005-01K0A
	Notes on handling refrigerant R1234yf	Model 217 with code 2U8 (Alternative refrigerant) except code 1U6 (R744 refrigerant) Model 222 with code 2U8 (Alternative refrigerant) except code 1U6 (R744 refrigerant)	AH83.30-P-0003-02A
	Notes on handling refrigerant R134a	Model 217 except code 1U6 (R744 refrigerant) except code 2U8 (Alternative refrigerant) Model 222 except code 1U6 (R744 refrigerant) except code 2U8 (Alternative refrigerant)	AH83.30-P-0003-01K0A
	Remove/install
1	Drain air conditioning system		AR83.30-P-1760LF
2	Remove front bumper	Model 222 except code 1U6 (R744 refrigerant)	AR88.20-P-2000LF
		Model 217 except code 1U6 (R744 refrigerant)	AR88.20-P-2000LC
3	Remove bolt (4) and remove bracket (5)
4.1	Unclip retaining frame (1) with engine oil cooler from cooling module	Model 217 with engine 157, 278 except code 1U6 (R744 refrigerant) Model 222 with engine 157, 256, 277, 278, 279, 656 except code 1U6 (R744 refrigerant) except code 487 (Active Body Control (ABC))
4.2	Unclip retaining frame (1) with engine oil cooler and ABC hydraulic fluid cooler from cooling module	Model 222 with engine 157, 277, 278, 279 with code 487 (Active Body Control (ABC)) except code 1U6 (R744 refrigerant)
4.3	Remove additional engine radiator	Model 217, 222 with engine 176, 177 except code 1U6 (R744 refrigerant)
		Model 217, 222 with engine 176 except code 1U6 (R744 refrigerant)	AR20.20-P-3867MNL
		Model 217, 222 with engine 177 except code 1U6 (R744 refrigerant)	AR20.20-P-3867MNM
5	Secure retaining frame (1) against falling down
	000 588 11 62 00 Major assembly mount		WS01.00-P-0092B
	000 588 10 62 00 Support plate		WS26.00-P-3309B
6	Release catch springs (2) and pull condenser (3) forward slightly in bottom area	:  Ensure condenser (3) is correctly seated.
7	Disconnect electrical connector (6) from refrigerant pressure sensor (B12)
8	Remove refrigerant pressure sensor (B12)
	Note on calculation of tightening torque when using insertion or socket tools with various effective lengths	:  Replace sealing ring on refrigerant pressure sensor (B12).	AH00.00-P-0015-01CW
		Refrigerant pressure sensor to condenser	*BA83.30-P-1019-01P
		Box wrench bit SW 27 mm	Fig 2
9	Install in the reverse order

Fig 2: Identifying Box Wrench Bit SW 27_MM (000 589 78 03 00)

Courtesy of MERCEDES-BENZ USA