Dipstick

How can I find out if my 2015 C3 requires a software update

Hi Paul thanks for your reply I have had an auto electrician look at the car He says the plug I disconnect is the one that tells the alternator how much charge to put into the battery hence saving fuel He is at a lose as to what the problem is The battery is holding a full charge when parked overnight but only shows 12.7 when the plug is in and the motor running Take the plug out and it charges about 13.5

Hi I have recently bought a C3 1.0 petrol 2015 I bought it from an auction The problem I have is that the battery is not charging I have had the alternator tested and that’s ok when I unplug the alternator the battery charges but of course it will throw up a fault code has anyone else had this problem and can give some advice many thanks for any help