Coolant, Draining: Procedure
Condition
- Pay attention to the operating instructions for the Cooling System Service Station :VAS 531 011 .
-- Make sure that in the "DRAIN" -container from the cooling system service station can hold 12 liters of coolant.
Tip
12 liters correspond to the total capacity of the cooling system. Due to the complexity of the cooling system the total capacity cannot be drained.
The cooling system can be under pressure. Risk of scalding by hot steam and hot coolant.
Possibility of scalding the skin and other parts of the body.
- Wear safety gloves.
- Wear protective eyewear.
- Reduce the pressure: cover the coolant expansion tank cap with a suitable towel and carefully open.
-- Open the coolant expansion tank cap -arrow-.
-- Install the adapter from the cooling system service station on the coolant expansion tank.
-- Connect the service connection.
Condition
- Do not disconnect the service connection from the cooling system service station.
-- Remove the rear center underbody trim panel. Refer to REAR CENTER UNDERBODY TRIM PANEL, REMOVING AND INSTALLING .
-- Position the cooling system service station for catching the coolant under the separating point.
-- Select "vehicle maintenance" in the main menu and select "system, draining".
-- Start "draining process".
-- Open the clamp -arrow- on the Electric Drive Power and Control Electronics -JX1- and remove the coolant hose -1-.
-- Let the coolant run into the drip tray for the cooling system service station.
-- Seal the coolant hose -1- using the Hose Clamps - Up To 40mm :3093 .
-- Install the commercially available coolant hose on the connection -1- on the motor.
-- Hold the commercially available coolant hose in the funnel from the cooling system service station when draining.
-- Select the procedure "system, draining".
-- Follow the instructions on the display and blow out the coolant, until the coolant only drips out or air comes out.
-- If necessary, restart the procedure "system, draining".
-- Remove the commercially available coolant hose on the connection of the coolant hoses -1- on the motor.
-- Remove the hose clamp from the coolant hose -1-.
-- Hold the coolant hose -1- when draining in the funnel from the cooling system service station.
-- Restart the "system, draining" procedure.
-- Follow the instructions on the display and blow out the coolant, until the coolant only drips out or air comes out.
-- If necessary, restart the procedure "system, draining".
-- Assemble the cooling system.