[mattc85]

I have recently bought an 08 reg 159 and initially had a problem with the central locking not responding to the key fob; I was having to lock the car with the key. This de-synchronisation had probably been caused by a flat battery the car suffered whilst standing over Christmas before I bought it.

I was about to get the key re-synchronised at a specialist but tried a tip I'd read about whereby sometimes key fobs will marry up with the car again if the battery is cut off for 15 or 20 minutes. This worked, to my surprise, and |I was happy not to have to pay money for codes etc.

However, I am now back to square one and having to lock the car with the key (therefore the alarm isn't set) as the alarm keeps going off randomly whenever I've locked the car with the fob, sometimes several hours after being locked. I have been pressing the button next to the interior lights switch to de-activate the volumetric sensors when I get out and I have checked the battery charge, and so I presume both of these can be ruled out as causes.

Can anybody shed any light on what the problem or solution could be? Thanks

 

[hedgefund85]

Hi,

My 159 had similiar problems does the alarm still go off if you deactivate the volumetric sensors on the inside and then get out and lock the car with the fob?

Welcome to the forum and alfa ownership. Id much rather have my 159 than a german box!

 

[mattc85]

Thanks...everyone here seems really helpful, and the pros of driving the 159 definitely outweigh the cons so far!

Yes, unfortunately, it's still going off (albeit less often) when I press the button inside before getting out - I've made sure it's within 1 minute of removing the keys etc.

I've read on some other sites that most alarms have a sensitivity dial that can be turned down, so I might end up getting that done if nothing else comes up. It's more the neighbours I'm bothered about!

 

[Old Engineer]

Are you sure the 'Volumetric' is disabled. Most of these types of problems are spiders walking around.

 

[Old Engineer]

Just checked the manual and the wording seems to say that it needs to be invoked after the instrument panel has gone off...

This function can be cut out (for example
if you leave animals on the car) by
pressing button A-fig. 13 on the front
ceiling light within 1 minute after instrument
panel turning off.

 

[hedgefund85]

Mine was a spider in the volumetric sensor. Activating it randomly. I dismatled the trim which was not difficult. Anybody with only minor knowledge of cars could do it. Extracted said spider. And all fixed. I also was not deactivating the sensor properly on leaving the car. As per old engineers post. You can't turn down the sensitivity on a 159's alarm. Which is a bugger. Alfaerisms eh!. Seriously tho dismantle where the sensor is or get a friend to do it. Start there its free!

 

[mattc85]

Thanks, both. I've been pressing the button after pulling the keys out, but haven't really looked to see if the instrument panel goes off instantly. Will make sure I'm doing it properly. Failing that, looking for a mystery spider will be the next port of call.

Failing both of those I will either have to spend money or imagine I'm in the 1980s with no such thing as a remote fob!