Condenser HVAC: Service and Repair

64 53 551 Removing And Installing Or Replacing Capacitor For Heating And Air Conditioning System

Special tools required:







WARNING:
Danger of injury.
Refrigerant circuit is under high pressure.
Follow safety information for handling R 134a tetrafluorethane refrigerant.
Avoid contact with refrigerant and refrigerant fluid.
Follow safety information for handling refrigerant fluid.







IMPORTANT:
Risk of damage.
Restart engine only when heating and air conditioning system has been correctly filled.
Follow instructions for opening and replacing parts in refrigerant circuit.
If Air conditioning system is opened for more than 24 hours:







NOTE:
Follow notes for opening and replacing parts in refrigerant circuit.
If Air conditioning system is opened for more than 24 hours:
Replace desiccant insert for heating and air conditioning system

IMPORTANT:
The desiccant insert can only be replaced in vehicles up to 12/08.
In vehicles after 12/08, the air conditioning capacitor must be replaced.







Necessary preliminary work:
- Drawing off, evacuating and filling the heating and air conditioning system are not included in the time value given for this job item
- Remove radiator







Release screws (1).
Tightening torque 64 53 6AZ.
Detach refrigerant lines (2) and (3) towards rear from heating and air conditioning system capacitor (4).

Installation note:
Replace sealing rings.
Use special tool 00 9 030 to install sealing rings without damaging them.







Release screw (1).
If necessary, lay refrigerant lines (2) and (3) slightly to one side.







Unlock retaining tab (1) in direction of arrow and pull heating and air conditioning
system capacitor (2) towards rear slightly.







Feed out heating and air conditioning system capacitor (1) upwards between tank ventilation line (2) and cover (3).







After installation:
- Evacuate and fill heating and air conditioning system
- Fill and vent cooling system and check for leaks

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