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

Model 205 

Model 213 

except code 1U6 (R744 refrigerant) 

Model 253 

Shown on model 205 

Fig 1: Refrigerant Pressure Sensor Components Location - Model 253; Shown on Model 205

Courtesy of MERCEDES-BENZ USA

	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.	AS83.00-Z-0006-01A
	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
	Protect air conditioning circuit and components from moisture when carrying out repair work		AH83.30-N-0005-01A
	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		AR83.30-P-1760LW
2	Remove front engine compartment paneling	Model 205, 253	AR61.20-P-1105LW
		Model 213 except code 1U6 (R744 refrigerant)	AR61.20-P-1105LWE
3	Disconnect electrical connector (1) at outside temperature sensor	Model 205, 253
4	Remove lower air duct insert (2)
5	Remove refrigerant line (3) from condenser, hang to one side towards the inside and seal openings	: Install new sealing rings.
		Model 205, 253 Nut, line to condenser	*BA83.30-P-1002-01Q
		Model 213	BA83.30-P-1006-01R
		except code 1U6 (R744 refrigerant) Nut/bolt, refrigerant line to condenser
		Record plug	Fig 3
6	Disconnect electrical connector (4) from refrigerant pressure sensor (B12)
7	Unscrew refrigerant pressure sensor (B12)	Model 205, 253 Refrigerant pressure sensor to condenser	*BA83.30-P-1006-01Q
		Model 213 except code 1U6 (R744 refrigerant) Refrigerant pressure sensor to condenser	BA83.30-P-1007-01R
		Box wrench bit SW 27_mm	Fig 2
8	Install in the reverse order

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

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Record Plug (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA