Heater Unit

Heater Unit

Special tools, testers and auxiliary items required

• Drip Tray For VAS 6100 (VAS 6208)

• Hose Clamps Up To 40 mm (VAS 3093)

• Compressed air gun, commercially available

Removing

• To improve accessibility, additional components e.g. engine cover must be removed (depending on engine version).

- Remove instrument panel.

- Remove the bulkhead inside the plenum chamber.

- Remove the rear channels from the right and left footwells. Refer to => [ Rear Footwell Channel ] Rear Footwell Channel.

- Place the (VAS 6208) under the engine.






- Mark the coolant hoses - 1 -.


Contact with hot engine coolant can cause severe scalding.

Coolant temperature can be above 100 °C with a warm engine. The cooling system is under pressure.

If necessary, reduce pressure and temperature before repairs.

- Clamp off the coolant hoses - 1 - using the (VAS 3093) and remove the coolant hoses from the heat exchanger.

- 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.

• On removal, note down bolt lengths and assignment for installation later.






1 Screw

• 4 Nm

2 Screws

• 4 Nm

• Quantity: 2

3 Cable Bracket

4 Heater Unit

• Removing

- Disconnect the connectors from the heater.

• All cable ties opened or cut during removal must be reinstalled at the same locations during installation.

- Remove the bolts, refer to => [ (Item 6) Screws ] from the bracket => [ (Item 5) Bracket ].

- Remove the supports, refer to => [ (Item 8) Right Support ] and => [ (Item 9) Left Support ].

- Remove the bolts, refer to => [ (Item 10) Screws ] and => [ (Item 12) Screws ] and the bracket => [ (Item 11) Bracket ].

- Remove the bolts, refer to => [ (Item 1) Screw ] and => [ (Item 2) Screws ] from the cable bracket => [ (Item 3) Cable Bracket ].

• To be able to reach the bolt => [ (Item 1) Screw ] , heater on driver side must be pulled out slightly from the bulkhead.

• When removing heat unit, make sure the two coolant pipes of the heater core do not get caught and bent or damaged on plenum chamber or noise insulation pan.

• Also pay attention to wiring harness, individual wiring connections may get damaged when pulling too forcefully on wiring harness.

- Remove the heater.

Installing

Install in reverse order of removal. When doing this, note the following:

• A second technician is necessary to install the heater.

- A second technician should guide both coolant pipes (from inside the engine compartment) into the heat exchanger as the heater is being installed, refer to.

- Fill with coolant.

5 Bracket

6 Screws

• 8 Nm

7 Subframe

8 Right Support

9 Left Support

10 Screws

• 8 Nm

• Quantity: 2

11 Bracket

12 Screws

• 8 Nm

• Quantity: 2

Seal between heater and engine compartment






• Note installation position of seal - A - during assembly.