VANOS test failed

Hello everyone,

I introduce myself here. I have a 2000 E46 M3 with manual transmission, carbonschwarz color and with 120K miles. It doesn't have a lot of modifications: Öhlins, Brembo Performance + Porsche 996 and nothing else I think... .I had already rebuilt the vanos with new Beisan seals and oilpump 5 years ago (about 10k miles).

6 months ago I did the headgasket (completely checked and with new valve stem seals, valve seats,... Since then I have a problem with the VANOS, which is killing me: When I do the VANOS test, the test is aborted because when trying to advance the intake shaft, it does not move even one degree! nothing! (the DME has any fault code)

After this, I have tried to do and change a multitude of things (many out of desperation). There have been so many, that I don't know if I forgot something or this has been the order:

- Timing (super meticulous, with a new BMW timing tool, with all the advice that I read here from you,... I did the timing at least 6 times)
- Check oil pressure (105-110 bar; ok)
- New solenoid coil pack (BMW)
- New seal repair kit (Beisan)
- New S62 diaphragm springs (Beisan)
- New intake & exhaust camshaft sensosrs (BMW)
- New crankshaft position sensor (BMW)
- Rebuilt Splines (Beisan)
- New Hydraulic unit (BMW)
- New chain with all the tensioner guides (BMW)
- Check wiring (DME and solenoids)
- I redid the head gasket, looking for any errors...

....and nothing... 😓😓 Maybe someone could tell me how I can check the DME? Any other idea what it could be??

Thank you very much in advance!!! 😊😊

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