Engine Coolant System, Draining, Vehicles With Two Heater Cores

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.

Special Tools And Workshop Equipment Required

Spring Clip Pliers: VAS6499
Shop Crane - Drip Tray:VAS6208
Hose extension diameter 20 mm
20 mm diameter blind plug (quantity: 2)
Compressed air gun

WARNING:

The coolant system is under pressure when the engine is warm.

Risk of scalding due to hot steam and hot coolant.

Reduce pressure by covering coolant reservoir cap with a cloth and carefully opening.

-- Drain the coolant. Refer to COOLANT, DRAINING .

-- Remove the left front wheel. Refer to appropriate service information. .

-- Remove the left front wheel housing liner. Refer to WHEEL HOUSING LINER .

-- Open the clamps and remove the coolant hoses -A through D-.

Fig 1: Identifying Coolant Hoses -A Through D-

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Attach a suitable hose -1- to the line -C- to lengthen it and place the one end in the :VAS6208 .

-- Apply maximum 1.0 bar (14.5 psi) compress air across the line -D- using a compressed air gun -2- until the circuit is completely empty.

Fig 2: Identifying Line -C To D-, Hose -1- And Compressed Air Gun -2-

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Install the blind plug -3- as illustrated, attach a suitable hose -1- to the line -B- to lengthen it and place the one end in the :VAS6208 .

Fig 3: Identifying Lines -A To B-, Blind Plug -3-, Compressed Air Gun -2- And Suitable Hose -1-

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Apply maximum 1.0 bar (14.5 psi) compress air across the line -A- using a compressed air gun -2- until the circuit is completely empty.

-- Connect the coolant hoses and the clamps.