[ska///235i]

after you take out the solenoids...theres an O ring sitting inside the hole. Per bentley manual, you should replace them but they looked fine so i just left them inside. Make sure when you reinstall the vanos that the O rings are still there and it didnt fall off

i clean them with carburator cleaners, used the tiny straw and spray right inside the hole from the top of the solenoid ( becareful the spray might bounce back, wear glasses...etc). Shit started to come out of the hole. I swap the two and clear the P1553 generic code.

(edit) CEL havent come back after a month...so everything is good



added some more info

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