Have you checked the Battery? I had a similar thing on my Beetle and it was the battery on its way out

And don't laugh - but I once had a similar problem with a moth getting caught on the car..........

 

Sure it wasn't a butterfly attracted to the pretty pink flower you had in the Beetles dash vase

 

Thanks for that - I did fleetingly wonder this morning about the battery as I know it has been the cause of other electrical gremlins.

In fact, as I type, that has just set me thinking: I did a high speed 12 mile run early this evening and experimented at my destination [no neighbours to annoy] with both key fobs to find that the car remote locking and alarm behaved perfectly no matter what I did to trip it up. I even locked it with the key in the driver's door and used the remote to unlock, and vice wersa.

But I've just got home, having stopped to help at a minor accident for about 15-20 minutes - 3 cars had run over a large, heavy steel ramp from a car or plant transporter which had caused quite a bit of underside/exhaust damage and a couple of tyres blown out - and whilst there all the lights, flashers, etc., were on with only a mile to go to come home and now the alarm is malfunctioning again.

This makes me think that at the very least I'll put a new battery on tomorrow anyway even though the voltmeter is pointing at all the right numbers during start and cruise.

And, no, I didn't laugh about the moth. It's a perfectly sensible possibility so I am just going out to spray the interior with RAID!

Thank you.

 

Well the battery was replaced as the voltage was down anyway [I've posted instructions on the "how to" elsewhere] but the alarm problem continued.

So it was off to VW Windrush, Maidenhead who could see on VAGCOM the previous four alarms, two of which were when I had failed to insert the ignition key quickly enough after unlocking the car with it, and the other two pointed to a faulty siren.

Today, the new siren was installed [front bumper off job] for £283 inc VAT, the bulk of which is being picked up by Warranty Direct.

So here's hoping for peaceful nights again!

 

Good thing you have a warranty Nooby

 

Indeed!