Homere on the road

Hello all, I have the same issue since a while now. Initially it was an single time issue then it became an intermittent issue. Then I figured out while pressing the brake before even touching the start button, it bypass the error. However, I decided to solve the issue and ran a diagnostic where the main error was P0C2900 - Auxiliary transmission fluid pump driver circuit , Performance After this, we ordered a new coolant with the following reference (0CK325583J upgraded version, 2019 -) initial version is H but vendor recommended J). https://www.oemvwshop.com/0ck325583h-engine-p546436/ So upon installing this with a new oil and gasket kit, and upgrading the software from v0002 to v0008 the error is back, yet different. This time the error show when turning on the car (one click and engine off) but goes away once the turning the engine and error disappears. Any ideas? Is there a error memory or an adaptation procedure? Thanks