If you change the adapter I would retain the original one. That way if you need to send it in for service you can revert it to the stock hardware. This serves the purpose of not losing your investment if they need to exchange the whole notebook and also doesn't give them cause to question your warranty. I don't know the laws in Germany but in the US it would not void the warranty to swap a slotted part like that.
A bus station is where a bus stops. A train station is where a train stops. On my desk, I have a work station…
