I was just after a little bit of advice please guys, my A3 developed an issue yesterday which is really annoying. Basically on the way to work yesterday I could hear the central locking mechanism clicking but thought nothing of it. Then once at work I couldnt lock the car using the fob. Every time I pressed the fob to lock it the little led light on the door card flashed and the hazard light button flashed for a brief second but didnt lock the car, then it sets the alarm off??
After I left work all was fine again, however once at the gym the issue started again leaving me messing about in the car park for 20 mins looking like I was trying to steal the car with the alarm going off all the time.
Anyway cutting a long story short I found out (off here) how to remove the central locking pump and the alarm siren which I have done. Now when removing the siren I found a lot of water underneath it which is clearly from when I washed the car last week. I have taken the pump out an opened it up and to me it looks fine, cant see anything obvious anyway and it was making a noise when fitted but sounded like a loose connection somewhere? Also the button on the door to unlock the doors from the inside doesnt work, the electric windows dont work either and neither does the car lock itself once moving.
I have reconnected the pump without the siren now but it doesnt even make a noise now when pressing the fob. Would not having the siren fitted cause the pump not to work? I was under the impression that this would just mean the alarm wouldnt work?
I can gather the water has caused the fault but without having vcds or vag com I cant check for fault codes, so does anyone know if it is just the pump or would it be best to replace both? By the way the alarm siren has been fine and not beeping prior to this. i just find it strange that when I try to lock the car with the fob or manually in the lock the alarm starts?
Sorry to be long winded but thought best to explain everything.
Oh and its an 03 TDi sport.
Pic of water where siren fixes.