volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Servicing air conditioning and heating - engine compartment > < Refrigerant R12 - Air conditioner with manual controls
Heating, Air conditioning
Refrigerant R12 - Air conditioner with manual controls
Servicing air conditioning and heating - Passenger compartment

Notes:

  • ◆ Parts marked with * can only be serviced by specially-equipped service workshops, since refrigerant circuit must be evacuated beforehand with extraction station V.A.G 1691.
  • ◆ Before performing service requiring the opening of the refrigerant circuit, the system must be converted to refrigerant R134a:

=> Workshop Manual "Air conditioning - with refrigerant R12, 1974 ▸"

  • Dash panel
    • ◆ Removing and installing

=> General body repairs; Repair group 70;

=> Removing and installing dash panel

 
V87-1518
  • Retaining strap
  • Evaporator housing*
    • ◆ With evaporator
    • ◆ With fresh/recirculating air flap
  • Gasket*
  • Series resistance -N24-
    • ◆ Renewing => Fig.1
  • Vacuum unit for fresh/recirculating air flap*
  • Vacuum pipe
    • ◆ Vacuum hose connection diagram
  • Gasket
  • Fresh air blower -V2-
    • ◆ Removing and installing => Fig. 2
 
V87-1518
  • Evaporator temperature switch -E33-
    • ◆ Behind cover -16 -
    • ◆ Insertion depth of sensor tube: 330 mm
    • ◆ Renewing => Fig.3
    • ◆ Task: prevents icing up
    • ◆ Switching temperatures: opens at or below -20 C
  • Gasket
    • ◆ Renew
  • Connecting piece
    • ◆ With gasket
  • Plug
  • Air conditioner switch -E35-
  • Air conditioner trim plate
    • ◆ For controls -17 -
 
V87-1518
  • Cover
    • ◆ Renewing - remove dash panel beforehand
  • Warm and fresh air controls
    • ◆ Dismantling and assembling => Page 80-20
  • Cables
    • ◆ Renewing: Remove footwell air vent -20 - beforehand.
    • ◆ Installing and adjusting => Page 87-27
  • Rear heater duct
  • Footwell outlet
    • ◆ Renewing: Remove centre console
  • Lever for central flap
  • Lever for temperature flap
 
V87-1518
  • Lever for footwell/defrost flap
    • ◆ Lever for footwell/defrost flap is one piece
  • Air distribution housing*
    • ◆ Do not dismantle further
  • Heat exchanger*
    • ◆ Gaskets must be bonded gap-free all around.
    • ◆ If retaining lugs do not engage when fitting, secure heat exchanger with screws.
    • ◆ After removal replace complete coolant.
  • Vacuum pipe connection
  • Gasket*
 
V87-1518
  • Connecting piece
  • Air conditioner relay -J32-
  • Gasket
    • ◆ Renew
  • Heating and air conditioning fuse -S23-
 
V87-1355

→ Fig.1     Renewing series resistance -N24-

  • ‒ Remove glove box.
  • ‒ Pull off connector -2- and remove screws -3-.
  • ‒ Seal surface between series resistance -1- and air duct before installing with AMV 176 000 05.
 
V87-1352

→ Fig.2     Removing and installing fresh air blower -V2-

  • ‒ Pull off connector -1- .
  • ‒ Unscrew Qty. 5 screws -arrows- and remove fresh air blower -2- downwards.
 
V87-1353

→ Fig.3     Renewing evaporator temperature switch -E33-

  •      1 -     Temperature switch with housing
  •      2 -     Rubber bush
  •      3 -     Sensor pipe with insertion depth marking
  •      4 -     Filliser-head screw
  •      5 -     Connector

Note:

In cases of repair the temperature switch need not be replaced, instead bridge contacts -5-.

Servicing air conditioning and heating - engine compartment > < Refrigerant R12 - Air conditioner with manual controls