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Volkswagen Golf Mk7 Service & Repair Manual: Dismantling and assembling heater and air conditioning unit

Note: different designs and makes of Volkswagen Golf Mk7 heater/AC unit exist — components are similar but not identical, and this page gives the full internal dismantling procedure.

  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 → Electronic Parts Catalogue.
The following illustrations show a “Valeo” heater/air conditioning unit, distinguishing features with respect to other makes → Chapter.
  Note
The illustration shows a left-hand drive vehicle. Dismantling and assembling is basically identical.
   

Dismantling and assembling heater and air conditioning unit

1 -  Air distribution housing
Different versions
The combined fitting of different makes of component is not permissible
The following illustrations show the heater unit from “Valeo”.
Depending on vehicle equipment with or without auxiliary air heater element -Z35- with auxiliary air heater control unit -J604-.
Distinguishing makes → Chapter.
2 -  Wiring harness
Different versions. Refer to → Electronic Parts Catalogue.
3 -  Evaporator housing
  Note
On vehicles without air conditioning system, a flow rate limiter is fitted in place of the evaporator.
4 -  Bolt
Qty. 3.
1 Nm
5 -  Left holder
For heater and air conditioning unit
Removing and installing → Chapter.
6 -  Nut
4.5 Nm
7 -  Nut
4.5 Nm
8 -  Right holder
For heater and air conditioning unit
Removing and installing → Chapter.
9 -  Air intake box
Different versions. Refer to → Electronic Parts Catalogue.
10 -  Bolt
Qty. 2.
1 Nm

    Questions & answers

    Dismantling and assembling heater and air conditioning unit — Volkswagen Golf Mk7

    Can the Golf Mk7 heater/AC unit be split without extracting refrigerant?
    The heating side can be dismantled without opening the refrigerant circuit. Valeo/Denso components must not be mixed.
    Removing and installing heater and air conditioning unit
    Special tools and workshop equipment required     Torque wrench -V.A.G 1331/- (5…50 Nm) & ...

    Removing and installing air distribution housing
      Note The illustration shows a left-hand drive vehicle. The removal and installation procedure is identical for both versions.   ...