I don't see diode replacement on their website but it's worth asking Partee Racing.

BMW S62 Vanos Rebuild – Beisan Seals & Solenoid Service

BMW S62 Vanos rebuild service with Beisan seals, solenoid testing, and full cleaning. Restore VANOS power and timing. Ships in 5–7 business days.

parteeracing.com

I should have some spare diodes (lots of 1N6484, maybe some RGF1M) if you/Partee wants them.

 

Thanks @Jigglypuff I have some 1N6484s, but appreciate the offer! I'll report back on Partee

 

Maybe contact Dr Vanos.
S62 Solenoid Board

 

Have you found?

 

Waiting to hear back from Partee & Dr Vanos.

 

the mini pcb that connects the solenoid pins (if they didnt break/corrode) to the wire might be the issue. its a little tricky to extend the wires and solder it to the pins directly but doable. i would order a new pcb board and have a computer/electronics guy transfer the guts over and solder directly to the pins.

 

Update: Dr VANOS offers a service to repair boards, and more importantly for my case they have replacement solenoids in the case of a bad solenoid.

 

I just went through this and had a new board and 2 known, good solenoids. Every issue went away and VANOS tests pass 100% now. He also has new grommets if needed as those deteriorate over time as well.

 

For the solenoids, you can get used noids from an ABS unit for cheap. I've been running one for 5 years with no issues. ABS unit p/n 34511162291.

 

Wow that is great info! I might have to see if I can find one of those ABS modules to have some spare solenoids.

 

Have to be careful. There are only 3 that are usable from these units. 3 are normally open, 3 are normally closed. Also, they may be highly corroded. I bought a unit that had no usable solenoids. I bought one in which the solenoids looked like they had been made the day before.

 

Update: Sent my boards to Dr Vanos. Very fast turnaround, they installed my solenoids on new boards, installed all new diodes and new connectors. The solenoid I thought was broken they tested and it was functional, so not necessary to buy a new one, but they do sell them if needed. Installed yesterday and no more VANOS codes