Hello, I just got information from different internet sources, how to get my convertible with season mark (03-10) over the winter. There is a dry single garage, but without electricity available. Here’s my plan: – Car washed and parked with proper wax layer – Cover cleaned and treated with impregner – Window open a gap – Tyre pressure at 3-3.5 bar – 1x per month turn a short lap in the garage yard in dry weather – Tank only 1/4 vo ll, so that the additives sold over the winter are mixed again during full refuelling in spring – granules for dehumidification in the garage Now I only need for you battery for voltage maintenance. Unfortunately, there is no power outlet on site. It would be possible to use a second identical battery with expansion/change after 2 months and charging at home. So I should come well over you 4-5 months. But how does the car behave when changing batteries quickly? update settings (e.g. memory seats, radio) lost or must also ECUs be re-learned (if necessary even in the workshop)? Thank you for your assessment!