Volkswagen Tiguan Service and Repair Manual: Heater
Overview - Heater
![Volswagen Tiguan. Overview - Heater](/images/manuals/466/vw_tiguan_heater_3511.png)
- Temperature Control Door Adjuster
- Bracket
- Cover
- Fresh/Recirculated Air Door Motor -V154-
- Check using the Vehicle Diagnostic Tester.
- Removing and installing.
- Replacing: initialize the basic setting using the Vehicle Diagnostic
Tester.
- Air Intake Housing
- With air recirculation door
- Heater
- Disassembling and Assembling.
- Fresh Air Blower -V2-
- Fresh Air Blower Series Resistor with Fuse -N24-
- Dust and Pollen Filter
- Cover
- For dust and pollen filter
- Heater Core
- Heater Core Trim Panel
- Auxiliary Heater Heating Element -Z35-
- A 3-stage Auxiliary Heater Heating Element -Z35- is installed here.
It is activated by the respective engine control module via a relay.
- Only installed on vehicles with a diesel engine without an auxiliary
heater
- Removing and installing.
- Air Distribution Housing
- Adjuster for Air Distribution Doors
Heater, Removing and Installing
Special tools and workshop equipment required
- Torque Wrench 1331 5-50Nm -VAG1331-
- Hose Clamps - Up To 25mm -3094-
- Shop Crane - Drip Tray -VAS6208-
- Engine Bung Set -VAS6122-
- -Commercially Available Compressed-Air Gun-
Removing
Note
To improve accessibility, additional components (depending on the engine
version) such as the engine cover must be removed.
- Remove the instrument panel.
- Loosen the clips -2- and remove the
intermediate defrost piece -1- from the heater
and A/C unit.
- Remove the intermediate piece -3- from the
heater and A/C unit.
- Remove the subframe.
- Remove the rear channels from the right and left footwells.
![Volswagen Tiguan. Heater, Removing and Installing](/images/manuals/466/vw_tiguan_heater_3512.png)
- Place the Shop Crane - Drip Tray -VAS6208- under the engine.
- Mark the coolant hoses -1-.
![Volswagen Tiguan. N80-10016](/images/manuals/466/vw_tiguan_heater_3513.png)
The cooling system is under pressure when the engine is warm. There is a risk
of scalding from hot steam and coolant. Burns on the skin and other parts of the
body are possible.Wear safety gloves.Wear protective eyewear.Reduce the
pressure: cover the coolant reservoir cap with a cloth and carefully open.
- Clamp off the coolant hoses -1- using the
Hose Clamps - Up To 40mm -3093- and disconnect the coolant hoses to the
heater core.
- Connect a section of the hose -A- to the
upper connection on the heater core.
- Hold a container -B- under the lower
connection -C-.
- Using a compressed air gun, carefully blow residual coolant out of
heater core at heater core connection.
- Cover the carpet inside the passenger compartment with waterproof foil
and water absorbing paper.
![Volswagen Tiguan. A87-0675](/images/manuals/466/vw_tiguan_heater_3514.png)
All cable ties and other wiring harness fasteners that were released or cut
open when removing the A/C unit are to be reattached in the same position during
installation.
The heater wiring harness is removed with the heater.
The tunnel supports -8 and 9- are welded to the
subframe -7-.
- Remove the subframe.
- Disconnect the connectors from the heater.
- Remove the bolts -6- from the bracket
-5-.
- Remove the bolts -10- and nuts
-12- and bracket -11-.
- Remove the bolts -1 and 2- from the cable
bracket -3-.
Note
- All cable ties and other wiring harness fasteners that were released or
cut open when removing the A/C unit are to be reattached in the same
position during installation.
- Pull the heater on the driver side slightly away from the bulkhead to
access the bolt -1-.
- When removing the heater, make sure both coolant pipes leading to the
heater core do not get caught, bent or damaged on the plenum chamber or
noise insulation pan.
- Pay attention to the wiring harness; pulling too hard can damage the
individual wire connections.
Note
When removing the bolts, make note of the lengths and allocation.
![Volswagen Tiguan. Heater, Removing and Installing](/images/manuals/466/vw_tiguan_heater_3515.png)
- Screw
- Bolts
- 4.5 +- 0.7 Nm
- Quantity: 2
- Wiring Bracket
- Heater
- Bracket
- Bolts
- Subframe
- Right Support
- Secure it to the subframe
- Left Support
- Secure it to the subframe
- Bolts
- Bracket
- Nut
Seal Between Heater and Engine Compartment
Note
Observe the installation position of the seal -A-
during assembly.
![Volswagen Tiguan. N80-10012](/images/manuals/466/vw_tiguan_heater_3516.png)
Installing
Install in reverse order of removal while noting the following:
Note
A second technician is needed to install the heater.
- When inserting the heater, have the second technician guide the coolant
pipes to heater core through the seal (from engine compartment out).
- Fill the coolant.
Heater, Disassembling and Assembling
Disassembling
![Volswagen Tiguan. Heater, Disassembling and Assembling](/images/manuals/466/vw_tiguan_heater_3517.png)
- Remove the heater.
- Remove the air distribution housing.
- Loosen the clips -2- and the bolts
-arrows- from the heater.
- Remove the heater.
Assembling
Assemble in reverse order of removal.
Component Location Overview - in Front Vehicle Interior
Instrument Panel
Center Vent
Vent, Removing.
Front Passenger Vent
Vent, Removing.
Heating and Ventilation Controls
With F ...
Adjuster for Air Distribution Control Doors, Removing and Installing
Removing
Remove the instrument panel.
Unclip flexible shaft from adapter for controls.
Unscrew bolts -1- and remove the adjust ...