Dismantling and assembling heater and air conditioner unit „Climatronic“ — VW
Dismantling and assembling heater and air conditioner unit „Climatronic“ on VW: factory workshop procedure. Full factory text, tools and checks.
Workshop procedure for VW — the factory write-up, straight from real workshop data.
📋 Procedure
Dismantling and assembling heater and air conditioner unit
„Climatronic“
Front air distribution flap control motor
V426
Checking:
Vehicle diagnosis, testing and information system
VAS 5051B
(or later model).
Removing and installing
Chapter
Renewing: initiate basic setting using
vehicle diagnosis, testing and information system
VAS 5051B
(or later model)
Chapter
.
Left temperature flap control motor
V158
Checking:
Vehicle diagnosis, testing and information system
VAS 5051B
(or later model).
Removing and installing
Chapter
Renewing: initiate basic setting using
vehicle diagnosis, testing and information system
VAS 5051B
(or later model)
Chapter
.
Defroster flap control motor
V107
Checking:
Vehicle diagnosis, testing and information system
VAS 5051B
(or later model).
Removing and installing
Chapter
Renewing: initiate basic setting using
vehicle diagnosis, testing and information system
VAS 5051B
(or later model)
Chapter
.
Bracket
Bolts
Bolts must be removed to separate air distribution housing from evaporator housing.
Cover
Control motor for fresh air and air recirculation flap and air flow flap
V425
Checking:
Vehicle diagnosis, testing and information system
VAS 5051B
(or later model).
Removing and installing
Chapter
Renewing: initiate basic setting using
vehicle diagnosis, testing and information system
VAS 5051B
(or later model)
Chapter
.
Air intake housing
With air recirculation flap
With air flow flap (Climatronic).
Upper part of evaporator housing
Dismantling and assembling evaporator housing
Chapter
Lower part of evaporator housing
Dismantling and assembling evaporator housing
Chapter
Evaporator
Removing and installing
Chapter
Evaporator temperature sensor
G308
or
evaporator output temperature sender
G263
Checking:
Vehicle diagnosis, testing and information system
VAS 5051B
(or later model).
Note
One of the two component designations appears depending on software. The functions are identical.
Removing and installing
Chapter
Connections for glove compartment cooling
To dismantle, remove glove compartment
Rep. gr.
68
.
Cooling hose for glove compartment
To dismantle, remove glove compartment
Rep. gr.
68
.
Installation position of connections for glove compartment cooling
Fig.
Fresh air blower
V2
with
fresh air blower control unit
J126
Checking:
Vehicle diagnosis, testing and information system
VAS 5051B
(or later model).
Removing and installing
fresh air blower
V2
Chapter
Removing and installing
fresh air blower control unit
J126
Chapter
Dust and pollen filter
With activated charcoal filter
Removing and installing
Chapter
Cover
For dust and pollen filter.
Heat exchanger
Removing and installing
Chapter
Right temperature flap control motor
V159
Checking:
Vehicle diagnosis, testing and information system
VAS 5051B
(or later model).
Removing and installing
Chapter
Renewing: initiate basic setting using
vehicle diagnosis, testing and information system
VAS 5051B
(or later model)
Chapter
.
Heat exchanger trim
Auxiliary air heater element
Z35
Only fitted on vehicles with a diesel engine.
Checking: with
vehicle diagnosis, testing and information system
VAS 5051B
(or later model), under Heating, ventilation, air conditioning; Systems capable of self-diagnosis; Auxiliary heating; Electrical components.
Removing and installing
Chapter
.
Air distribution housing
Removing and installing
Chapter
Installation position of connections for glove compartment cooling
1
Connecting piece
2
Valve
TorqFix answers live for your specific car — tell it the engine code and it serves the matching sequence, torque figures and wiring for that exact variant.
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Who makes these pages, and how
TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
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The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.