NOTE: This is for cable contracts only (internet using the antenna outlet) - NOT to be used for DSL contracts (internet using the telephone outlet!)
Easiest step is to send a relocation request using the following link:
https://kabel.vodafone.de/meinkabel/meine_kundendaten/umzugsservice
As far as I know, you can already do this right now - but you might also wait until April or May.
You'll then get a confirmation letter to your old address - please note that you might be required to send official proof of relocation after you left Germany, e.g. a copy of the deregistration notice ("Abmeldebescheinigung").
Your relocation request will therefor be processed as cancellation as Vodafone is not able to provide you with a cable contract in Sweden. The 3 months notice period will start the earliest from the day of the relocation (on that official letter), but not before your relocation request is received by Vodafone. Therefor send the request in advance and send the official deregistration notice afterwards.
Please also note that you need to send back any cable rental device to the rental center in Nuremberg.
