Drain The Coolant

Special tools and workshop equipment required

Shop Crane - Drip Tray: VAS6208

Fig 1: Identifying Drip Tray
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Hose Clip Pliers: VAS6362

Fig 2: Hose Clip Pliers
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Safety Gloves
Protective Eyewear

Procedure

During installation, all heat shield boots must be installed at the same location.

CAUTION:

A partial coolant replacement in the engine coolant circuit is not possible on vehicles with a high-voltage system.

For repairs and partial replacement on the engine coolant circuit the entire coolant must be drained and refilled.

Fig 3: Coolant Expansion Tank

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CAUTION:

The cooling system is under pressure when the engine is warm. There is a risk of scalding due to hot steam and hot coolant.

Scalding the skin and other parts of the body is possible.

- Wear safety gloves.

- Wear protective eyewear.

- Reduce the pressure by covering the coolant expansion tank cap with a cloth and carefully opening it.

-- Open the coolant expansion tank cap -1- by releasing the catch in direction of -arrow-.

-- Remove the respective noise insulation. Refer to OVERVIEW - NOISE INSULATION .

Audi A6/A7:

-- Remove the front left wheel spoiler. Refer to OVERVIEW - FRONT WHEEL HOUSING LINER .

Vehicle without High-Voltage System:

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-- Lift the clamp -2- and remove the coolant hose from the lower right of the radiator and drain the coolant (example image).

-- Version with dual clutch transmission: loosen the hose clamp -right arrow- and remove the coolant hose from the ATF cooler and drain the coolant, to do so open the heat shield boot if equipped.

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Audi A8:

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-- Place the Shop Crane - Drip Tray: VAS6208 underneath.

-- Loosen the coolant hose -arrow-, remove the coolant hose and hold it toward the rear and let the coolant drain.

Audi A6/A7 with High-Voltage System:

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-- Place the Shop Crane - Drip Tray: VAS6208 underneath.

-- Loosen the hose clamp -arrow-, remove the coolant hose -3- and let the coolant drain out.

Audi Q5 with High-Voltage System:

Fig 4: Coolant Pipes on Lock Carrier

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-- Place the Shop Crane - Drip Tray: VAS6208 underneath.

-- Loosen the hose clamp -2-, remove and free up the coolant hose and let the coolant drain out.

Audi A6/A7 and Q5 with High-Voltage System:

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-- Place the Shop Crane - Drip Tray: VAS6208 underneath.

-- Loosen the hose clamp -2-, remove and free up the coolant hose and let the coolant drain out (example illustration).

Continuation for All Vehicles:

Secure all hose connections with hose clamps that match the ones used in series production. Refer to the Electronic Parts Information (ETKA).

-- Reattach the coolant hoses. Refer to Figure for versions with a connector coupling.

-- Fill the cooling system. Refer to COOLANT, FILLING USING Cooling System Charge Kit: VAS6096 [DMTA, DPAA, DPUA, DPVA, DMTC, DRYA, DUVA] .