Engine Coolant System, Draining, High Temperature Circuit

Special Tools And Workshop Equipment Required 

• Spring Clip Pliers: VAS6499 
• Shop Crane - Drip Tray:VAS6208 
• Hose extension diameter 20 mm
• Compressed air gun

-- Drain the coolant for the high temperature coolant circuit. Refer to COOLANT, DRAINING AND FILLING, HIGH TEMPERATURE CIRCUIT .

-- Close the coolant reservoir.

-- Remove the left front wheel. .

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

Drain the Engine Coolant Pipes

-- Open the clamps and remove the coolant hoses -A and B-.

Fig 1: Coolant Hose Clamps

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Attach a hose -2- to the line -B- to lengthen it and place the one end in the Shop Crane - Drip Tray: VAS6208  .

Fig 2: Apply A Maximum Of 1 Bar Compressed Air Across The Line -A- Using A Compressed Air Gun -1-

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Apply maximum 1 bar (14.5 psi) compress air across the line -A- using a compressed air gun -1- until the circuit is completely empty.

Drain the Heater Coolant Pipes

-- Attach a hose -1- to the line -A- to lengthen it and place the one end in the Shop Crane - Drip Tray: VAS6208  .

Fig 3: Applying Compressed Air To Coolant Hose (2 Of 2)

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Apply maximum 1 bar (14.5 psi) compress air across the line -B- using a compressed air gun -2- until the circuit is completely empty.

-- Connect the coolant hoses and the clamps.