Servicing auxiliary heater — VW

Important!
Always disconnect the battery earthing strap before working on the electrical system.
Note:

Before disconnecting the battery, obtain the code for radios with an anti-theft code.
When the battery is reconnected, please remember to check the vehicle equipment (radio, clock, electric window lifters) in accordance with the Workshop Manual and/or the instruction manual.
A factory plate is mounted on the heater. This factor plate indicates which heater type is installed in the vehicle
=> Page
82-1
; heater model and version.

Preselection clock with temperature control -E187-
Removing => Page
82-22
, Fig.
1

Upper section of air outlet
Removing => Page
82-23
, Fig.
3

Seal
Intake duct
Removing => Page
82-23
, Fig.
3

Seal
Heater control unit -J65-
Removing and installing
=> Page
82-33

Intake connector for hot air
Clip
Intake hose for hot air
Cap
Removing => Page
82-28
, Fig.
2

Right-hand side section
for heater unit housing

Heater unit
Removing => Page
82-25
Dismantling and assembling
=> Page
82-34

Housing for heater unit
Clip
Exhaust pipe
Removing and installing
=>Page
82-24
, Fig.
4

Air intake hose for combustion air
It is essential to ensure that the air can pass through

Intake connector for combustion air
Pay attention to satisfactory routing

Fuel pump -G23-
Removing and installing
=> Page
82-48
Dismantling => Page
82-49
, Fig.
1
Checking installed position
=>Page
82-49
, Fig.
2
Checking fuel flow rate => Page
82-50
Observing cleanliness rules
=> Page
82-44

Clip
Fuel line
From the fuel pump -G23- to heater unit

Rubber bonded metal bush
M6 hexagon nut
6 Nm

Seal
Hot air hose
Adapter
Lower section of air outlet
Cross-head screw
Left-hand section
for heater unit housing

Bracket for heater control unit -J65-
Carrier
Fuse for heating -S23-
Replacing => Page
82-22
, Fig.
2

Fig.1
Removing preselection clock with temperature control -E187-

Carefully prise preselection clock with temperature control -E187- out of the trim using a screwdriver -arrows-.
Pull off connector.

Fig.2
Replacing fuse for heating -S23- in auxiliary relay carrier and fuse carrier

Fold down auxiliary relay carrier and fuse carrier under the driver's seat.
Remove fuse for heating -S23- from auxiliary relay carrier and fuse carrier-arrow-.

Fig.3
Removing upper section of air outlet and intake duct

1 -
Upper section of air outlet
2 -
Intake duct
3 -
Floor covering

Remove centre row of seats in passenger compartment.

=> General Body Repairs - Interior; Repair Group 72; Rear seats, Removing and installing bench seat in passenger compartment
General Body Repairs - Interior
Rear seats, Removing and installing bench seat in passenger compartment

Loosen floor covering -3- in the passenger compartment behind the driver's seat and fold forwards.
Unscrew the screws -arrows- for upper section of air outlet-1- and intake duct -2-.

Fig.4
Removing and installing exhaust pipe

1 -
Housing for heater unit
2 -
Exhaust pipe
3 -
Clip

Removing

Loosen clip -3- and pull off exhaust pipe -2-, with slight rotary motions.

Installing

When installing the exhaust pipe pay attention to adequate clearance(dimension a = 50mm) to the side member.

Note:

It is essential to ensure air can pass through the exhaust pipe