Remove/install pressure and temperature sensor on refrigerant condenser

AR83.30-S-5438F

Remove/install pressure and temperature sensor on refrigerant condenser

30.01.2020

Model

447 with engine 780.701/702

with code HH9 (Air conditioner, automatic heater control)

Model

447 with engine 780.702

with code HH4 (THERMOTRONIC automatic climate control)

Modification notes

30.01.2020

Method extended

Operation step 3

30.01.2020

Special tool 000 589 72 03 00 added.

Step 5

1

Pressure and temperature sensor

2

Refrigerant condenser

3

Electrical connector

4

O-ring

5

Refrigerant line

 Danger

Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC)

Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines.

AS00.00-Z-0035-01A

 Danger

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

 Warning

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.Typ 447 mit Motor 780.701

AS83.00-Z-0006-01A

Topical note

General information on vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system as well as personal protective equipment

AH00.00-Z-0300-01A

Topical note

Protect air conditioning circuit and components from moisture when carrying out repair work

AH83.30-N-0005-01A

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

Notes on handling refrigerant R1234yf

AH83.30-P-0003-02A

Notes on handling refrigerant R134a

Typ 447 mit Motor 780.701

AH83.30-N-0003-01A

 

Remove/install

1

Empty refrigerant circuit.

Model 447 with engine 780.701
with code HH9 (Air conditioner, automatic heater control)
except code HX1 (Refrigerant R-1234yf)

AR83.30-S-1760E

Model 447 with engine 780.701/702
with code HH9 (Air conditioner, automatic heater control)
with code HX1 (Refrigerant R-1234yf)
Model 447 with engine 780.702
with code HH4 (THERMOTRONIC automatic climate control)
with code HX1 (Refrigerant R-1234yf)

AR83.30-S-1760EF

2

Switch off ignition and store transmitter key outside of transmission range (min. 2  m).

3

Remove refrigerant line (5) from condenser (2) and place to one side.



Compressor oils (specification 362.1)

BB00.40-P-0362-01A

 To do so, remove nut.
Plug openings.

 Installation: Replace sealing ring and coat with compressor oil.

 Nut, refrigerant condenser to refrigerant line

*BA83.30-N-1002-01FA

 Record plug

*129589009100

4

Disconnect electrical connector (3).

5

Remove pressure and temperature sensor (1) from refrigerant condenser (2).

Note on calculation of tightening torque when using insertion or socket tools with various effective lengths

AH00.00-P-0015-01CW



Compressor oils (specification 362.1)

BB00.40-P-0362-01A

 Seal off opening.

 Installation: Coat O-ring (4) with compressor oil.

 Pressure and temperature sensor to refrigerant condenser

*BA83.30-N-1008-01FA

 Box wrench bit

*000589720300

 Record plug

*129589009100



Check

6

Check O-ring (4) on pressure and temperature sensor (1) for damage.

If damage is present,



Replace pressure and temperature sensor (1).

7

Install in the reverse order.

 Air conditioning

Number

Designation

Model 447 with engine 780.701/702 with code HH9,
Model 447 with engine 780.702 with code HH4

BA83.30-N-1002-01FA

Nut, refrigerant condenser to refrigerant line

Nm

12

 Air conditioning

Number

Designation

Model 447 with engine 780.701/702 with code HH9,
Model 447 with engine 780.702 with code HH4

BA83.30-N-1008-01FA

Pressure and temperature sensor to refrigerant condenser

Nm

10