My alarm has been giving 3 'pips' when locking for sometime.. On Saturday night and last night (conveniently in the early hours on both occasions), it went off on its own.

I don't know how to find out if it works, which maybe a good starting point?

Can anyone give me advice on getting this remedied - and where to go in London. The car is a 1998 model.

Any help much appreciate (by my neighbours too!)