Completely Flush The Cooling System

-- Remove the old hose clamp.

-- Open the shut-off valve -A- on the valve block.

• Pump approximately six liters (6.3 quarts) of distilled water through the engine

-- Closes the shut-off valve -A-.

-- Remove the old hose clamp.

-- Open the shut-off valve -A- on the valve block.

• Pump approximately six liters (6.3 quarts) of coolant through the engine

-- Closes the shut-off valve -A-.

The Flushing Procedure Has Ended, Switch off the Pump and the Engine.

Coolant Flushing and Filling Device:VAS531007  Removing:

-- Open the shut-off valve -B- and leave it open, so that the pressure in the cooling system builds.

-- Remove the plugs -3- from the coolant expansion tank and reconnect the bleeder hose -2-.

-- Seal the flushing hose -1- with plugs.

-- Remove the valve block -1- and test adapter -2-.

-- When a freeze protection up to -36 °C (-32.8 °F) is necessary, empty coolant expansion tank and fill with coolant concentrate.

-- The coolant must be at the >>weld seam<< -arrow-.

-- Reconnect the connector -1- on the Engine Coolant Temperature Sensor -G62- -3-.

-- Install the air filter housing.

-- There will be faults stored in the engine/motor control module DTC memory because the connectors were disconnected. Erase the DTC memory. Refer to Vehicle Diagnostic Tester.

-- Close the coolant expansion tank cap until it locks into place.

-- Let the engine run in idle until the radiator fan switches on.