Thanks for your help!
Here quote a note from
Beisan Systems - Procedures - M62TU Vanos Procedure
Fully retard bank 1 & 2 vanos timing. For each vanos perform following.
Connect ohm meter positive lead to one of vanos test pins and negative lead to intake camshaft first bearing cap stud (digital multimeter & alligator clip wires).
Turn on ohm meter (digital multimeter on ohm setting).
Install vanos turning tool onto vanos center shaft. Insert tool pins into vanos shaft pin holes.
Turn vanos shaft counter clockwise until end adjustment position (vanos turning tool & 24mm socket 1/2" / 1/2" ratchet).
Caution: Do not place notable pressure on vanos turning tool as pins will break.
Ohm meter will display 0 ohm when vanos at fully retarded position.
Note: Vanos internal piston will connect with vanos test pins when fully retarded and cause a short reading (0 ohm).
Note: When ratchet pressure is released ohm reading can change to open circuit (infinite ohm). This is normal.
Note:
In many cases a short will not be achieved and a 0 ohm reading will not occur. This is normal.
Is this a good news for me? It's normal if no audible beep? Did I misunderstand it?