Volkswagen Tiguan Quiz
Heating, Ventilation and Air Conditioning

Heater

In this manual: Heating, Ventilation and Air Conditioning
Body exterior — 50Body Interior — 29General Paint Information — 69Paint — 9Brake System — 16Suspension, Wheels, Steering — 68Wheel and Tire Guide — 3Towing Guide — 1Wheel and Tire Guide General Information — 23Communication — 20Electrical Equipment General Information — 29Electrical Equipment from 06/2011 — 59Heating, Ventilation and Air Conditioning — 24Refrigerant R134a Servicing — 296-Speed Manual Transmission 02Q, OBB, and OFB — 27
27steps
~162min
4/5difficulty
010203040500.71N·mlb·ft
Tightening torque found on this page
Done 0 of 27

Overview - Heater

Volswagen Tiguan. Overview - Heater
  1. Temperature Control Door Adjuster
    • Removing and installing.
  2. Bracket
  3. Cover
  4. 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.
  5. Air Intake Housing
    • With air recirculation door
  6. Heater
    • Disassembling and Assembling.
  7. Fresh Air Blower -V2-
    • Removing and installing.
  8. Fresh Air Blower Series Resistor with Fuse -N24-
    • Removing and installing.
  9. Dust and Pollen Filter
    • Removing and installing.
  10. Cover
    • For dust and pollen filter
  11. Heater Core
    • Removing and installing.
  12. Heater Core Trim Panel
  13. 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.
  14. Air Distribution Housing
    • Removing and installing.
  15. Adjuster for Air Distribution Doors
    • Removing and installing.

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
  • Place the Shop Crane - Drip Tray -VAS6208- under the engine.
  • Mark the coolant hoses -1-.
Volswagen Tiguan. N80-10016

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

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.
  • Remove the heater.

Note

When removing the bolts, make note of the lengths and allocation.

Volswagen Tiguan. Heater, Removing and Installing
  1. Screw
    • 4.5 +- 0,7 N·m
  2. Bolts
    • 4.5 +- 0,7 N·m
    • Quantity: 2
  3. Wiring Bracket
  4. Heater
  5. Bracket
  6. Bolts
    • 8 N·m
  7. Subframe
  8. Right Support
    • Secure it to the subframe
  9. Left Support
    • Secure it to the subframe
  10. Bolts
    • 9 +- 1,3 N·m
    • Quantity: 2
  11. Bracket
  12. Nut
    • 9 +- 1,3 N·m
    • Quantity: 2

Seal Between Heater and Engine Compartment

Note

Observe the installation position of the seal -A- during assembly.

Volswagen Tiguan. N80-10012

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
  • 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.

Test yourself

A quick Volkswagen Tiguan quiz: every answer comes with an explanation and a link to the manual page.