In order to register the car there, some equipment will need to be changed to make it compliant with EU standards. For example, you will need to add a rear-facing fog lamp; on European Leafs it's an add on light below the middle of the rear bumper.
Other lighting modifications will need to be made such as disabling the amber side marker lights, and if you have the halogen headlight setup you will need to add a white-only parking light; steady amber to the front is not allowed in the EU. If you have a 2013 or later model, you will also need to add turn signal repeaters to the front fenders as found on the 2011-2012 models.
Unless the OEM 120 volt EVSE has been properly upgraded to accept higher voltage, DO NOT plug it into anything but a 120 volt source! You will fry the EVSE.
In Europe, it's BYOCC (bring your own charging cord) at public charging stations and you will need to buy one of those cords to use a public EVSE over there. Europe uses the "Mennekes" charging standard which has a different pin configuration than the J1772 used here, but adapters are available. Europe is 230 volt, 50 Hz which is different from the 240 volt 60 Hz electricity in the US so unless it's rated to do so, an electrical appliance from the US won't work properly in Europe even with adapters. As Siemens is a German company it possibly will work in Europe but I would contact them to see if that is the case. If in doubt just buy a EU-spec "wallbox."
European radio stations are closer together on the dial than in the US and you won't be able to pick up those "in-between" frequencies with a US radio.
Blue Ocean 2012 Leaf SV, lost that 1st bar at 34 months/26,435 miles. Lease returned 2 months later. Final LeafStat figures: 225 Gids, 17.44 kWH, SOC 91.89%, SOH 82.36%, 69.49% HX, 54.57 Ahr, battery temp 61.8 F.
Now driving a 2015 VW eGolf SEL.