Seat Leon >> Assembly overview - heater and air conditioning unit

Note

  • There are different designs and makes of heater and air conditioning unit. The individual components of the various heaters and air conditioning units are similar but not identical. The combined fitting of different makes of component is therefore not permissible .
  • The following illustrations show a "Valeo" heater/air conditioning unit, distinguishing features with respect to other makes

Heater and air conditioning unit, flap control left side: Assembly overview

Air conditioning system

  1. - Operating lever
    • For actuation of defrost and air distributor flap
  2. - Air distribution flap servomotor

Heater and manually controlled air conditioner:

Air distribution flap servomotor - V428- with potentiometer for air distribution flap servomotor - G645-

  • Removing and fitting

Automatically controlled air conditioner:

  • Front air distribution flap servomotor - V426- with potentiometer for front air distribution flap servomotor - G642-
  • Removing and fitting
  1. - Bolt.
    • 2 off
    • 1 Nm
  2. - Bolt.
    • 3 off
    • 1 Nm
  3. - Bolt.
    • 2 off
    • 1 Nm
  4. - Servomotor for temperature flap

Heater and manually controlled air conditioner:

  • Temperature flap control motor - V68- with potentiometer for temperature flap control motor - G92-
  • Removing and fitting

Automatically controlled air conditioner:

  • Left temperature flap control motor - V158- with potentiometer for left temperature flap control motor - G220-
  • Removing and fitting
  1. - Operating lever
    • For warm air flap
  2. - Heater and air conditioning unit
    • Many components of the heater and heater/air conditioning unit are identical
    • Different versions
    • The combined fitting of different makes of component is not permissible
    • The following illustrations show the heater from "Valeo"
    • Assembly overview
  3. - Defroster and air distribution flap actuator
    • Removing and fitting

Heater and air conditioning unit, flap control right side: Assembly overview

Air conditioning system

  1. - Heater and air conditioning unit
    • Assembly overview
  2. - Operating lever
    • For defrost flap
  3. - Bolt.
    • 2 off
    • 1 Nm
  4. - Defroster flap servomotor - V107-
    • With potentiometer for defroster flap servomotor - G135- .
    • Only for automatically controlled air conditioner
    • Removing and fitting
  5. - Right temperature flap servomotor - V159-
    • With potentiometer for right temperature flap servomotor - G221-
    • Only for automatically controlled air conditioner
    • Removing and fitting
  6. - Bolt.
    • 2 off
    • 1 Nm
  7. - Operating lever
    • For warm air flap

Heater and air conditioning unit, heat exchanger, auxiliary air heater element: Assembly overview

Air conditioning system

  1. - Bolt.
    • 6 Nm
  2. - Coolant pipe for heat exchanger
    • Removing and fitting
  3. - Staple
    • Can also be replaced by a clamp in the course of service work
  4. - Coolant pipe for heat exchanger
    • Removing and fitting
  5. - O ring
    • Renewing.
  6. - Cover
    • For heat exchanger
  7. - Bolt.
    • 2 Nm
  8. - Foam spacer
  9. - Support plate
    • For coolant pipes
  10. - Foam rubber
    • For insulation
    • Note the fitting position:
  11. - Heater and air conditioning unit
    • Removing and fitting
    • Dismantling and assembling
  12. - Heat exchanger
    • Removing and fitting
  13. - Heating element for additional heater - Z35-
    • Removing and fitting
  14. - Bolt.
    • 2 off
    • 2 Nm
  15. - Electrical wire
    • Removing and fitting
  16. - Negative wire
    • Nut, 9 Nm
  17. - Bolt.
    • 3 off
    • 2 Nm
  18. - Screw-type clip
  19. - O-ring
    • Replace
    Assembly overview - add-on parts of heater and air conditioning unit and of air intake box
    Note There are different designs and makes of heater and air conditioning unit. The individual components of the various heaters and air conditioning units are similar but not identical. The ...

    See also:

    Identification
    Gearbox codes Configuration of identification codes and construction data on manual gearbox -arrow- Identification letters and production date of the gearbox -arrow- Additional data identify ...