If you dont remove the battery it will almost definitely be toast after 5 months. I presume you would, at least stick it (when removed) on a smart charger till you returned? (A C-tek mxs5 cost less than a new battery - c£60). I do not know what state the car would be in after 5 months with no battery though. 
I would strongly recommend that if you value the car at all Get a Ctek MXS 5 (or similar) charger - I have no connection with the company! - and get it connected to the car for your absence. Or pay your rellies to start it and run it every week. These cars do NOT like being left unused.  (I was away for 2 months and hadnt arranged a charger or friendly started/driver and the battery was gubbed and I had a string of electrical issues from fuel pump to obscure DTCs all related to battery voltage.
__________________
2002 D2 S8 – Ming Blue, Valcona leather, Vavona wood insert, solar sunroof (to be fitted), Heated rear seats, extended leather pack, 18” Avus, ski hatch, Bose, auto dim rear view mirror, rear blind.
|