Disconnect the battery negative cable.

Connect the pressure transducer for the diagnostic equipment between the return pipe (2) and the pipe connector (1) using Kit N° 1870885001 (connector pipes with Kit EX 07 housed in case N° 1806338000.

Reconnect the negative battery lead.

Start the engine and check that the pressure reading on the gauge is between 0.6 and 0.8 bar.