1. Place the vehicle on a stationary lift.
2. Remove the left trunk liner.
3. Disconnect connector (red) hydraulic pump power supply (wires M326 and 326).
4. Connect the loose connector terminals next to the suspension up button.
5. Reduce the pressure so that the suspension cylinders can be moved by hand.
6. Remove heat shield.
7. Unscrew the tank with a special key.
8. Clean the seating surface of the tank holder.
9. Install a new seal lubricated with LHM on the reservoir holder.
10. Screw on the tank, tightly tightening it by hand.
11. Install the heat shield.
12. Connect the connectors correctly (as for normal operation).
13. Purge the air from the circuit and replenish the amount of LHM fluid to the required level.