Alarm and strange 'crackling noise'!!

[neil298]

I have a 53 plate t5 v70 and this week my neighbour informed me that whilst at work my alarm kept going off,I kept an eye out and sure enough it keeps going off and sometimes just the lights flash with no audible sound and on the odd occasion you get the horn noise as well.Coupled with this I have noticed that there is what i can only describe as a faint 'crackling' noise (similar to putting on an old vinyl record) coming from under a fuse type box cover situated in front of the drivers side of the engine.I removed the plastic cover to show 2 silver boxes.one labelled bosch 6.2 and one Temic 27.1.It crackles away while the engine is hot and cooling down but It hasnt been heard first thing in the morning before its warmed up.I dont know if the 2 are linked but hopefully someone can put me straight.I am leaving the car unlocked at the moment and i will remove the alarm siren fuse but I'm worried that the constant flashing lights will drain the battery

[Harvey]

The alarm siren is on its way out ,it has backup battery inside of it when they fail they then leak onto the pcb which gives you the fault you have.
the siren is in side the drivers side front wing ,to get to it remove road wheel drill out the rivets that hold the liner in place towards the front of the car and you will see it.
There is a anti tamper bolt that holds it in place the hard part of the job is to drill out this bolt,the new siren will just plug in no need to get it coded.

[neil298]

Any tips on where to get one at a reasonable price?...or alternatively is there any way of disconnecting the alarm and siren?...The car is 8 years old andi doubt if anyone wants to nick it!

[Harvey]

eBay comes as a kit n/side bonet lock,siren,wing black rivets.
This one is listed as of today 200773496072 ,or try these

http://www.vpcuk.org/forums/showthre...ht=Volvo+parts

[t5 stealth]

see here..this ,might help.
http://www.vpcuk.org/forums/showthre...%20replacement

[neil298]

Its a lot of work for somthing i dont really think is that important so is there a way of just disabeling the alarm?

[t5 stealth]

its not a hard job,
mostly removing plastic crap lol.
not sure if you can disable it as such,i guess you could unplug the siren,but im sure it will leave a warning up on the dash,and i expect it to affect the central locking or something,as most of these over complicated things seem to get upset if one item is unplugged or disconnected,might be worth a try tho,

[Rufe]

We work out cheaper than that eBay ad above. We are generally always the cheapest mail order trader for genuine parts, and we are a Volvo main dealer. Strange that, but its true. We have been supplying parts to Volvo forum members for a very long time so please keep us in mind when you need any Volvo parts!

For a replacement alarm siren you have two realistic options available to you:


OPTION 1:

FULL ALARM SIREN KIT:
PART NUMBER [9499758]
The Kit Includes:
[9452709] Alarm Siren, with Internal Battery
[31218475] Bonnet Lock, with Microswitch
[986937] Security Bolt
[979878 x10] Undershield Rivets
[9162875 x2] Window Decals
[3541113 x11] Clips
[967851] Fuse
[9494778] Decal
Our Discounted C3 Price = £152.44
Plus Postage:
£6.99 Interlink 24 Hour


Or:


OPTION 2:
You could actually just take the items that you really need to replace this alarm siren:
[9452709] Alarm Siren with Internal Battery
[986937] Security Bolt
[979878 x10] Undershield Rivets
Our Discounted C3 Price = £143.10
Plus Postage:
£5.99 Interlink 24 Hour

(If you provide us with a mobile phone number then Interlink will text you on the morning of the delivery to tell you a one hour delivery time slot. Works very well).



If you decide to order these (Or to get a quote on ANY genuine Volvo parts) please call us on either of our direct lines, 01792 790066 or 01792 784272 and remember to quote discount code 'C3' to get these heavily discounted prices.

Hope this helps,

Simon