BMW 318/325/M3/525/535/M5 1989-1993 Repair Information

Drier Unit

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REMOVAL & INSTALLATION



E30 3 Series
  1. Have the air conditioning system discharged by a qualified shop.
  2.  
  3. Remove the washer fluid tank and the lower trim.
  4.  
  5. Use a backup wrench and disconnect the refrigerant lines. Disconnect the switches. Plug the lines. Remove the bolts holding the unit and the drier.
  6.  

To install:
  1. Install the drier and bolts. Connect the switches and the refrigerant lines.
  2.  
  3. Tighten the 5 / 8 inch line to 14.5 ft. lbs. (20 Nm), the 3 / 4 inch line to 28 ft. lbs. (39 Nm), the 7 / 8 lines to 30 ft. lbs. (42 Nm) and the 11 / 16 inch lines to 35 ft. lbs. (48 Nm).
  4.  
  5. Install the trim panel and the washer tank. Have the system recharged by a qualified shop.
  6.  

E36 3 Series
  1. Have the air conditioning system discharged by a qualified shop.
  2.  
  3. Use a backup wrench and disconnect the refrigerant lines. Disconnect the switches. Plug the lines. Remove the bolts holding the unit and the drier.
  4.  

To install:
  1. Install the drier and bolts. Connect the switches and the refrigerant lines.
  2.  
  3. Tighten the 5 / 8 inch line to 14.5 ft. lbs. (20 Nm), the 3 / 4 inch line to 28 ft. lbs. (39 Nm), the 7 / 8 lines to 30 ft. lbs. (42 Nm) and the 11 / 16 inch lines to 35 ft. lbs. (48 Nm).
  4.  
  5. Have the system recharged by a qualified shop.
  6.  

E34 5 Series
  1. Have the air conditioning system discharged by a qualified shop.
  2.  
  3. Remove the washer tank.
  4.  
  5. Use a backup wrench and disconnect the refrigerant lines. Disconnect the switches. Plug the lines. Remove the bolts holding the unit and the drier.
  6.  

To install:
  1. Install the drier and bolts. Connect the switches and the refrigerant lines.
  2.  
  3. Tighten the 5 / 8 inch line to 14.5 ft. lbs. (20 Nm), the 3 / 4 inch line to 28 ft. lbs. (39 Nm), the 7 / 8 lines to 30 ft. lbs. (42 Nm) and the 11 / 16 inch lines to 35 ft. lbs. (48 Nm).
  4.  
  5. Install the washer tank. Have the system recharged by a qualified shop.
  6.  

 
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