volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Dismantling and assembling heater > < Servicing electronic heating control - Thermotronic
Heating, Air conditioning
Servicing heating system
Servicing heating system
 
V80-0509
Warning!
Always disconnect the battery earth strap before working on the electrical system.

Note:

Before disconnecting battery, obtain radio code for radios with anti-theft coding.

  • Plenum chamber cover left
  • Joining piece
  • Plenum chamber cover right
    • ◆ Removing and installing => Fig.5
 
V80-0509
  • Intake housing
    • ◆ Removing and installing dust and pollen filter (Vehicles up to vehicle identity No. 1H-P-990 000) => Fig.6
    • ◆ Removing and installing dust and pollen filter (Vehicles from vehicle identity No. 1H-R-000 001) => Fig. 7
  • Right side window vent
  • Right vent
    • ◆ Replacing:
    • ‒ The glued-on seal is to be removed from the replacement part if a seal is already installed on air guide (under dash panel).
  • Central vent
    • ◆ Replacing:
    • ‒ The glued-on seal is to be removed from the replacement part if a seal is already installed on air guide (under dash panel).
 
V80-0509
  • Cover
  • Hexagon nut
  • Series resistance for fresh air blower with overheating fuse -N24-
    • ◆ Removing and installing => Fig.1
  • Fresh air blower -V2-
    • ◆ Removing => Fig.2
  • Control panel trim
  • Fillister head self-tapping screw
  • Footwell vent
    • ◆ Replacing: Remove centre console
  • Right joining piece
  • Fillister head self-tapping screw
  • Self-tapping screw
 
V80-0509
  • Right rear duct
  • Left rear duct
  • Left joining piece
  • Clip
  • Cables
    • ◆ Removing and installing
  • Fresh air and heated air controls
    • ◆ Removing and installing => Fig.3
    • ◆ Dismantling and assembling => Page 80-20
    • ◆ Installing and adjusting cables => Page 80-15
 
V80-0509
  • Heater
    • ◆ Renewing:
    • ‒ Removing and installing dash panel

=> General body repairs; Repair Group 70; Removing and installing dash panel

    • ‒ Remove carrier
    • ‒ Seal heat exchanger to prevent coolant from running out
    • ‒ Remove heater unit
    • ◆ Dismantling and assembling heater unit => Page 80-11
  • Heat exchanger
    • ◆ Renewing: Remove dash panel and heater unit
    • ◆ Installing: => Page 80-11 dismantling and assembling heater
    • ◆ After removal renew complete coolant
 
V80-0509
  • Right vent
    • ◆ Removing and installing => Fig.4
    • ◆ Replacing:
    • ‒ The glued-on seal is to be removed from the replacement part if a seal is already installed on air guide (under dash panel).
  • Left side window vent
  • Dash panel
    • ◆ Do not dismantle further
    • ◆ Removing and installing

=> General body repairs; Repair Group 70; Removing and installing dash panel

 
V80-0484

→ Fig.1     Removing fresh air blower series resistance with overheating fuse -N24-

  • ‒ Pull off connectors.
  • ‒ Press retainers on sides and pull out series resistance.

Note:

If retainers on the sides do not engage when installing, the series resistance can be secured using a self-tapping screw (arrow).

 
V80-0478

→ Fig.2     Removing fresh air blower -V2-

  • ‒ Pull connector -1- off series resistance.
  • ‒ Release retainer -3- and turn fresh air blower -2- in direction of arrow and remove.
 
V80-0489

→ Fig.3     Removing and installing fresh and heated air control unit

Removing

  • ‒ Pull off heating control trim panel -3-.
  • ‒ Remove instrument panel screws -2-.
  • ‒ Pull controls -1- with cables attached out of dash panel.

Installing

  • ‒ Secure cables to removed controls.
 
V80-0508

→ Fig.4     Removing and installing vent

  • ‒ Remove lighting switch.
  • ‒ Pull grill -2- out carefully with pointed pliers.
  • ‒ Remove vent housing -1-.
 
V80-0511

→ Fig.5     Removing and installing right-hand side plenum chamber cover

  •      1 -     Plenum chamber cover, right
  •      2 -     Adapter
  •      3 -     Plastic screw
  •      4 -     Clip
  •      5 -     Connector
 
V80-0510

→ Fig.6     Removing and installing dust and pollen filter (vehicles up to vehicle identity No. 1H-P-990 000)

  • ◆ Optional extra
  •      1 -     Filter element
  •      2 -     Plastic nut
  •      3 -     Filter housing
  •      4 -     Gasket

Note:

If the filter element is to be changed then additionally remove the housing and install the dust and pollen filter for vehicles from vehicle identity No. 1H-R-000 001 (=> Fig.7 ).

 
N80-0012

→ Fig.7     Removing and installing dust and pollen filter (vehicles from vehicle identity No. 1H-R-000 001)

  •      1 -     Frame
  •      2 -     Filter element
  •      3 -     Plastic nut
  •      4 -     Filter housing with seal

Removing

  • ‒ Press filter housing clips in direction of arrow -B- and remove filter element with frame.

Installing

  • ‒ The frame must engage in the first lamination of the filter element -arrow A-.

Dismantling and assembling heater > < Servicing electronic heating control - Thermotronic