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PRE-RELEASE

Expansion tank

Expansion tank

Warning

The cooling system is under pressure. Hot coolant and steam can escape.

- Open the cap slowly to release the pressure.

- Carelessness can cause eye and burn injuries


To remove


1. Undo the expansion tank cap to release any residual pressure. Retighten the cap.

2. Disconnect the connector from the level sensor.


3. Remove and raise the expansion tank. Remove and move aside the bleeder hoses to prevent coolant from leaking.

4. Fit 30 07 739 Hose pinch-off pliers to the large hose on the bottom of the expansion tank. Attach the pliers as close as possible to the expansion tank.


5. Tilt the expansion tank so that the bleeder nipples point upward.

6. Remove the large hose from the expansion tank.

7. Remove the expansion tank and empty the coolant into a suitable receptacle.


To fit


1. Fit the large hose to the expansion tank but do not tighten the hose clip.


2. Fit the expansion tank into its mounting in the body. Adjust the large hose and tighten the hose clip.

3. Remove the pinch-off pliers.

4. Plug in the level sensor connector.

5. Fit the bleeder hoses.

6. Fill the system with the appropriate quantity of 40 - 400 131 389 Coolant .

7. Start the engine. Check the cooling system for leaks.


PRE-RELEASE