Recently had some major work done on my Astra 2.0 SRI including new cambelt, head skim, water pump etc as my cambelt slipped a few weeks back.
Collected the car yesterday and everything seemed fine. Went to a friends and when I was leaving I couldnt unlock the car properly with the key fob. It was making only what I can describe as a "half hearted" unlocking noise and the interior light would come on very dim. As I was pressing the open/unlock on the fob the alarm was going off intermittently. Again the noise was very weak and not the usual alarm sound.
Once I managed to get into the car without the alarm sounding, the car refused to start.
I was under the impression that if the battery is disconnected for a long period of time it messes with the alarm/imobililser and this is possibly what has happened.
Has anyone got an idea what is going on or how to solve the issue. Any ideas will be welcome.
Thanks in advance