Removing and Installing Condenser-Evaporator Line
Removing And Installing Condenser-Evaporator Line
Tools
Preliminary work
Preliminary work - removing the (A - B) line for the condenser/evaporator
1. Remove covers front left (engine compartment cover).
2. Drain coolant.
3. Remove brake booster and the content required for this.
4. Remove wiper motor.
5. Remove cowl panel cover.
Preliminary work - removing the (B - C) line for the condenser/evaporator
1. Remove covers front left (engine compartment cover).
2. Remove engine guard.
3. Remove left front wheel.
4. Remove front left wheel housing liner.
5. Remove external power connection.
6. Remove left air cleaner housing.
Information
NOTE: Removal and installation is described for a Turbo vehicle. There is additional hosing on the graphics which is not installed on the naturally-aspirated engine.
Removing the condenser-evaporator line
Removing the (A - B) line on the condenser - evaporator
ATTENTION:
Danger of injury from contact with the refrigerant.
- Observe safety regulations when working with refrigerant.
NOTE: The condenser - evaporator line can only be removed together with the compressor - evaporator line.
1. Remove refrigerant by suction.
2. Press release on electrical connector -arrow A- and disconnect from pressure switch.
3. Undo two fastening screws for refrigerant lines on expansion valve.
4. Pull out the refrigerant lines from the expansion valve.
5. Unscrew the fastening nuts to the fastening clamps of both refrigerant lines.
6. Unscrew fastening screws of both refrigerant lines and pull out the refrigerant line.
7. Press the clips of the heating pipes together and push them down. Mounting tools for spring-band clamps NR.72
8. Pull hoses off the lines.
9. Loosen refrigerant lines -A and B- from the retaining clips and pull them up and out.
Removing the (B - C) line on the condenser - evaporator
ATTENTION:
Danger of injury from contact with the refrigerant
- Observe safety regulations when working with refrigerant.
NOTE: The condenser - evaporator line can only be removed together with the compressor - evaporator line.
1. Remove refrigerant by suction.
2. Unscrew fastening screw of the refrigerant line -B- on the condenser and pull out the refrigerant line.
3. Unscrew refrigerant line fastening screw for the compressor on the pressure damper.
4. Pull the refrigerant line from the connection.
5. Unscrew both fastening nuts on the pressure damper of the compressor - evaporator line and the fastening nut of the condenser / evaporator line.
6. Unscrew fastening screw for the mount of the refrigerant lines and open the mount.
7. Detach mount on the refrigerant line.
8. Unscrew fastening screws of both refrigerant lines and pull out the refrigerant line.
9. Carefully unclip the connecting lines from the mount.
10. Lift the vehicle. Hold both refrigerant lines together, twist them, and pull them downward through the left wheel housing opening.
Installing the condenser-evaporator line
Installing the (A - B) line on the condenser - evaporator
NOTE:
- Always replace the sealing rings of the refrigerant lines.
- Spray the sealing rings with refrigerant oil before fitting.
- The condenser - evaporator line can only be installed together with the compressor - evaporator line.
1. Insert refrigerant lines -A and B- into the radiator tank, position them, and press them into the retaining clips.
2. Attach the hoses for the heating to the lines and fix them with clips. Mounting tools for spring-band clamps NR.72
3. Attach the refrigerant lines in the engine compartment to the connections (do not tilt) and screw down using the fastening screws -1-. Tightening torque: 9 ftlb.
4. Screw down the fastening nuts to the fastening clamps of both refrigerant lines. Tightening torque: 6 ftlb.
5. Carefully place refrigerant lines onto expansion valve and press into place (do not tilt) and screw down using the two fastening screws. Tightening torque: 9 ftlb.
6. Push electrical plug onto pressure switch until it clicks into place.
Installing the (B - C) line on the condenser - evaporator
NOTE:
- Always replace the sealing rings of the refrigerant lines.
- Spray the sealing rings with refrigerant oil before fitting.
- The condenser - evaporator line can only be installed together with the compressor - evaporator line.
1. Lift the vehicle. Hold both refrigerant lines together, twist them, and insert them from below through the left wheel housing opening.
2. Carefully clip in the connecting lines of the refrigerant lines into the holder.
3. Attach the refrigerant lines in the engine compartment to the connections (do not tilt) and screw down using the fastening screws -1-. Tightening torque: 9 ftlb.
4. Position refrigerant lines on wheel arch without tension.
5. Position the pressure damper of the compressor - evaporator line and the condenser - evaporator line.
6. Place the three fastening clamps onto the threaded pins and screw down using the three fastening nuts -3-. Tightening torque: 6 ftlb.
7. Plug in the refrigerant line from the compressor on the pressure damper (do not tilt) and screw down with the fastening screw -1-. Tightening torque: 9 ftlb.
8. Engage the refrigerant lines in the holder on the wheel arch, close them, and screw down using the fastening screw -2-. - Tightening torque: 1 ftlb.
9. Engage mount on the refrigerant line.
10. Insert refrigerant line -B- into the condensor and screw it in using the fastening screw on the condenser. Tightening torque: 9 ftlb.
Subsequent work
Subsequent work - installing the (A - B) line on the condenser/evaporator
1. Fill in refrigerant.
2. Install brake booster and the content required for this.
3. Install wiper motor.
4. Install cowl panel cover.
5. Refill coolant.
6. Install covers front left (engine compartment cover).
Subsequent work - installing the (B - C) line for the condenser/evaporator
1. Install external power connection.
2. Install left air cleaner housing.
3. Install front left wheel housing liner.
4. Fit left front wheel.
5. Fit engine guard.
6. Fill in refrigerant.
7. Install covers front left (engine compartment cover).