Hi all,

I want to clean up my battery terminals so need to disconnect it. I had errors thrown up while driving so think it was a battery issue, all solved itself after leaving the car off for a few minutes.

I read online that a battery disconnect resets the ECU and also requires a TBA.

Can anyone confirm if this is necessary, or does it not matter?

Is there a way to reset it without VCDS, some posts say to just put ignition on and floor the accelerator for like 10 seconds or something.

it is a 2016 Polo 1.0 TSI.

Thank you
Ji