Heater Core, Removing And Installing: Installing

WARNING: This page is about a different car, the 2014 Volkswagen Touareg, 2013 Volkswagen Touareg, 2012 Volkswagen Touareg, and 2011 Volkswagen Touareg. However, it is still accessible from the selected car via links, so may be relevant.

-- Clean the rear heater and A/C unit (for example, from coolant residue).

-- Check the foam seals on the heater core -A-.

Fig 1: Checking Foam Seals

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

NOTE:

The foam seals must be attached without gaps and must not be damaged.

-- Install the heater core -C- into the heater and A/C unit.

Fig 2: Identifying Heater Core Components

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Connect coolant hose -B- to coolant pipe to heater core -C- (coolant hose -A- is not connected for the time being).

NOTE:

Install The Coolant Hoses.

Coolant hose -A- to the return to the engine (over the hose group under the left fender).

Coolant hose -B- on the supply from the engine (over the hose group under the left fender).

-- Fill the coolant reservoir up to the top mark with coolant. Refer to COOLANT [For engine(s) CGRA] .

-- Cover the area under the heater and A/C unit with absorbent paper to prevent leaking coolant from running onto the heater and A/C unit or floor covering.

-- Place a container under connection -A- on the heater core -C-.

-- Open the :3094 on the coolant hose -B- just enough so that the coolant and flow slowly into the heater core (to pre-bleed the heater core).

NOTE:

If the coolant does not flow into the heater core on its own, use the hand pump from the :VAG1274B to build up pressure in the reservoir and increase the flow.

-- Wait until coolant exits from coolant hose connection -A- on coolant pipe to heater core.

-- Attach the coolant hose -A- to the coolant pipe on the heater core.

-- Install the removed parts in the opposite order.

-- Bleed the coolant circuit. Refer to COOLANT [For engine(s) CGRA] .