Servicing air conditioning and heating - Passenger compartment — VW

Note:

Parts marked with an * can only be serviced by specially-equipped service workshops, since refrigerant circuit must be evacuated beforehand with extraction station V.A.G 1770 or V.A.G 1771.

Gasket*
Renew

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.

Connecting piece
With gasket
Renewing - remove dash panel beforehand

Evaporator housing*
With evaporator

Air intake*
With fresh and recirculating air flap

Series resistance -N24-
Renewing => Fig.
2

Vacuum unit for fresh and recirculating air flap*
Ventilated: Fresh air operation

Fresh air blower switch -E9-
Air conditioner switch -E35-
With switch for fresh/recirculating air flap -E159-
With control lamp for lighting - Air conditioner switch -L43-
Removing => Fig.
1

Vacuum pipe*
Vacuum hose connection diagram => Page
87-34

Fresh air blower -V2-
Removing and installation => Fig.
3

Evaporator housing cover
Renewing: First remove dash panel and footwell outlets -
32
-

Retaining strap
Renewing: First remove dash panel and footwell outlets -
32
-

Air duct right
Air distributor
Renewing: Remove centre console, dash panel bracket, central vent -13-, heating and fresh air controls -30-, remove shelf on passenger side; loosen dash panel -26- and lift

Right vent
Removing => Page
80-10
, Fig.
8

Grille
For right vent

Central vent
Removing => Page
80-10
, Fig.
7

Control panel trim
Grilles
For central vent

Instrument panel trim
Removing => Page
80-8
, Fig.
4

Grille
For right vent

Air vent left
Removing => Page
80-9
, Fig.
6

Rear heater duct
Renewing: First remove central console, dash panel bracket, pedal cluster cover -
34
-, footwell outlet -
32
-, seats and carpet

Gasket
Dash panel
Removing and installing

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

Air duct left
Air conditioner switch-off relay
-J365-
Only on vehicles with code letters AAA, ABV, AEK, ADY and AGG
Behind the central console
Control number 147

Air conditioner shut-off control unit -J314-
Only on vehicles with code letters AAZ and manual gearbox
Behind the centre console
Control number 129

Air conditioner magnetic coupling cut-out relay -J246-
Only on vehicles with Diesel engine and automatic gearbox
Behind the central console
Control number 135

Warm and fresh air controls
With air conditioner switch -E35-
Installing and adjusting cables
=> Page
87-30
Removing and installing
=> Page
80-8
, Fig.
3
Dismantling and assembling => Page
80-20

Footwell outlet
Renewing: Remove shelf on drivers' side and passenger side, centre console, dash panel bracket and pedal cluster cover -33-

Cables
Renewing: First remove pedal cluster cover -
34
- and footwell outlet -
32
-
Installing and adjusting => Page
87-30

Pedal cluster cover
Distributor housing*
With temperature flap
With central flap
With footwell/defrost flap
Do not dismantle further

Vacuum pipe connection*

Fig.1
Removing air conditioner switch -E35-

Press the switch unit (at the four locating points) against the controls and at the same time towards the buttons.

Fig.2
Renewing series resistance -N24-

Remove shelf on passenger side
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.

Fig.3
Removing and installing fresh air blower -V2-

Remove shelf on passenger side
Remove glove box.
Pull off connector -1-.
Remove clamp -3-.
Unscrew Qty. 5 screws -arrows- and remove fresh air blower -2- downwards.