Repairing auxiliary heating — VW

Repairing auxiliary heating
WARNING
Always disconnect the battery earth strap before working on the electrical system.
Note
Obtain the radio anti-theft code before disconnecting the battery.
When the battery is reconnected, check the vehicle equipment (radio, clock, electric window regulators) according to workshop manual and/or owner's manual.
A manufacturer's plate is attached to the heater unit. This manufacturer's plate provides information about the heater unit installed in vehicle
Chapter
; Type and version of heater.
Timer with temperature regulator
E187
Removing
Fig.
Vent, top part
Removing
Fig.
Seal
Intake duct
Removing
Fig.
,
Fig.
Seal
Heater control unit -J65-
Removing and installing
Chapter
Intake duct for hot air
Clip
Intake hose for warm air
Cover
Removing
Fig.
Side part, right
For heater unit housing
Heater unit
Removing
Chapter
Dismantling and assembling
Chapter
Heater unit housing
Clip
Exhaust pipe
Removing and installing
Fig.
,
Fig.
Combustion air intake hose
Absolutely ensure that air flow is not restricted
Combustion air intake connection
Ensure proper routing
Fuel pump
G23
Removing and installing
Chapter
Dismantling
Fig.
Checking installation position
Fig.
Testing quantity of fuel delivered
Chapter
Observe rules for cleanliness
Chapter
Clip
Fuel line
From
fuel pump
G23
to heater unit.
Bonded rubber mounting
Hexagon nut M6
6 Nm
Seal
Hot air hose
Intermediate piece
Vent, bottom part
Cross-head screw
Side part, left
For heater unit housing
Bracket for heater control unit -J65-
Bracket
Heater fuse
S23
Replacing
Fig.
.
Removing
timer with temperature regulator
E187
Carefully lever
timer with temperature regulator
E187
out of trim with a screwdriver
arrows
.
Pull connector off.
Renew
heater fuse
S23
in additional relay and fuse carrier
Tip additional relay and fuse carrier under driver seat forward.
Remove
heater fuse
S23
in additional relay and fuse carrier
arrow
.
Removing top part of vent and intake duct
Vent, top part
Intake duct
Floor covering
Remove middle seat bench row in passenger compartment
Rep. Gr.
72
.
Loosen floor covering
3
in passenger compartment behind driver seat and fold forwards.
Remove bolts
arrows
for upper part of vent
1
and intake duct
2
.
Removing and installing exhaust pipe
Heater unit housing
Exhaust pipe
Clip
Removing
WARNING
Danger of burn injuries.
Parts of the exhaust system may be hot.
Before removing exhaust system, let it cool off.
Loosen clamp
3
and pull off exhaust pipe
2
with gentle twisting motion.
Installing
When installing exhaust pipe, ensure that there is sufficient clearance (dimension a = 50 mm) to longitudinal member.
Note
Absolutely ensure that exhaust pipe is not restricted.