Installation of electrical wire clamps on the high pressure pump
1 - pump, 2 - electrically controlled valve, 3 - electrical wires, 4 - clamps
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 pressure.
6. Drain fuel from fuel tank.
7. Remove the fuel filler neck.
8. Disconnect the suspension height adjuster connector.
9. Install clamps on fuel lines.
10. Disconnect fuel lines.
11. Loosen the nut securing the high pressure pipe.
12. Disconnect the pump electrical wires.
13. Remove pump and electrically operated valve.
14. To install the high pressure pump, install heat shrink sleeves on the electrical wire connections, fix the electrical wires to the pump and follow the steps in reverse order with respect to the removal process. You should also bleed the suspension circuit and top up the LHM fluid to the correct level.