BMW Coupes and Sedans 1970-1988 Repair Guide

Air Conditioning Condenser

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REMOVAL & INSTALLATION



All Equipped Models

Before attempting to remove the compressor, the air conditioning system must be discharged by a professional using an approved recovery and recycling machine.

  1. Disconnect the negative battery cable.
  2.  
  3. Have the air conditioning system properly discharged by a qualified shop using an approved recovery/recycling machine.
  4.  
  5. Drain the cooling system.
  6.  


CAUTION
When draining coolant, keep in mind that cats and dogs are attracted to ethylene glycol antifreeze, and could drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantity. Always drain the coolant into a sealable container. Coolant should be reused unless it is contaminated or several years old.

  1. Remove the radiator and fan from the vehicle.
  2.  
  3. Remove the bolts retaining the right and center grille, remove the grilles.
  4.  
  5. Disconnect and plug the refrigerant lines at the condenser, through the right side grille opening.
  6.  
  7. Disconnect the auxiliary cooling fan connector. Remove the cooling fan from the condenser.
  8.  
  9. Remove the condenser mounting bolts and remove the condenser upward.
  10.  

To install:
  1. Install the condenser in position and install the mounting bolts.
  2.  
  3. Install the auxiliary cooling fan.
  4.  
  5. Reconnect the refrigerant lines at the condenser, using new gaskets. Tighten the 5 / 8 in. line to 14 ft. lbs. (20 Nm), the 3 / 4 in. line to 28 ft. lbs. (39 Nm), the 7 / 8 lines to 30 ft. lbs. (42 Nm) and the 11 / 16 in. lines to 35 ft. lbs. (48 Nm).
  6.  
  7. Install the radiator into the vehicle. Install the grille pieces.
  8.  
  9. Refill the cooling system and properly recharge the air conditioning system.
  10.  
  11. Reconnect the negative battery cable. Bleed the cooling system.
  12.  

 
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