i think i have the same problem. today in the morning when i tried to unlock the doors by remote key, there was no response from the locks or the turn indicators. unlocked the door of my car manually and turned the key to MAR position but there were no dashboard lights or MID.opened the bonnet removed the terminal of battery and connected it again.but there was no spark or click sound at terminal. i have bought a new amaron din55 battery on september 2nd.according to me the battery has discharged considering i switch off everything before i turn the ignition off and anywayz i read somewhere that when u turn off fiat linea or punto the whole system turns off. can anyone please throw some light on this problem.i called the battery guy today at my place and he has taken away the battery for charging.so i guess something is draining the battery or not charging it at all considering i drove the car for almost 100 km on saturday and sunday. thought the mid lights or air con lights werent flickering i did notice on saturday that a white coloured smoke came outta the ac vents for 3-4 sec. this happened like 3 times. i thought the culprit was humidity and stuff like that because the smoke was odorless.there is also some slight whistling sound when i accelerate.its not a loud noise but you have to be a good listener to actually realize that it is a whistle kinda.i hope the alternator is not kaput or somethin.please advise.