S40 (New) Engine 2.4 : - Alarm system service required

S40wit · Dec 24th, 2013, 09:46

Hi all

First post on this forum!

My car has this alarm on the dash.

I find a lot of info on this subject but very little relating to the 04 S40 2.4i auto (RHD). Looked for the alarm siren module under the front wheel arches but find nothing there.

Any help or pointers to where I can find more info please?

SonyVaio · Dec 24th, 2013, 10:30

Chances are it is the internal battery in the siren unit that has failed and needs replacing but it is a bit of a job. It could also be a faulty sensor too but you would need codes read to pin point the failure.

S40wit · Dec 24th, 2013, 13:17

Quote:

Originally Posted by SonyVaio

Chances are it is the internal battery in the siren unit that has failed and needs replacing but it is a bit of a job.

Any idea where this siren unit is physically on the 04 S40 ?

TEZ-1 · Dec 25th, 2013, 20:00

Quote:

Originally Posted by S40wit

Any idea where this siren unit is physically on the 04 S40 ?

I think its a bumper off job.

S40wit · Dec 26th, 2013, 07:15

Quote:

Originally Posted by TEZ-1

I think its a bumper off job.

Thanks, front or rear?

ADBS65 · Dec 27th, 2013, 15:41

I have the same problem on my 06 plate S40 2.0 diesel. I have looked at other forums on here and most indicate it is the alarm battery. I have taken off the front drivers side inner wheel arch, as it appears to be located there on other Volvo's, but I can't find it there. I have attached an image for reference purposes in case I missed it! Before I dismantle my car, can anyone actually point me to where it is located please.
Thanks
Andy

SonyVaio · Dec 27th, 2013, 18:33

Sorry for delay but with it being Christmas and all.

On a 04 > Onwards S40

The Siren unit is in the Plenum Chamber, you need to remove the scuttle pan (4 x clips) and remove the wiper blade arms to gain entry. On a RHD vehicle it sits on the near side (passengers side). The siren unit is held in place by 4 x M6 bolts and should be torqued to 10nm.

When you've removed the scuttle pan then there is a protective plenum chamber cover which is plastic welded on at the back end. When you get this cover off you will think you've broken 3 clips but that is the welds. You need to clean the remains of the welds off by using a chisel or similar implement and then when finished use butyl tape or similar to re-secure the plenum chamber cover.

All the best with it. If you have difficulties post back up and I'll see if I can post up the VIDA pics.

ADBS65 · Dec 28th, 2013, 09:09

Hi thanks for the information could I be cheeky and ask for the pictures/diagrams before I begin please. Better to know what I am getting into :-) I am hoping it is the battery in the unit and that it can be replaced, which seems to be a common fault. If not then at least I know what it looks like and can source a replacement. Do you know, if I remove it can I still drive the car or will its removal immobilise the vehicle?. Will a new one need coding to my car?Again, thanks for your advice.

S40wit · Dec 28th, 2013, 11:53

Quote:

Originally Posted by SonyVaio

The Siren unit is in the Plenum Chamber, you need to remove the scuttle pan (4 x clips) and remove the wiper blade arms to gain entry.

Most helpful, thanks SV! Pics would really be nice.

SonyVaio · Dec 28th, 2013, 14:40

Will pop the pics up in a minute.

Dec 24th, 2013, 09:46	#1
S40wit New Member Last Online: Jul 25th, 2016 15:52 Join Date: Dec 2013 Location: Pretoria	Alarm system service required Hi all First post on this forum! My car has this alarm on the dash. I find a lot of info on this subject but very little relating to the 04 S40 2.4i auto (RHD). Looked for the alarm siren module under the front wheel arches but find nothing there. Any help or pointers to where I can find more info please? __________________ Best regards Philip ----------------- '04 S40 2.4i Auto

Dec 28th, 2013, 09:09	#8
ADBS65 Member Last Online: Mar 11th, 2024 12:13 Join Date: May 2010 Location: Wolverhampton	Hi thanks for the information could I be cheeky and ask for the pictures/diagrams before I begin please. Better to know what I am getting into :-) I am hoping it is the battery in the unit and that it can be replaced, which seems to be a common fault. If not then at least I know what it looks like and can source a replacement. Do you know, if I remove it can I still drive the car or will its removal immobilise the vehicle?. Will a new one need coding to my car?Again, thanks for your advice. __________________ Andy 2011 Volvo S60 ES D3 Manual

Dec 24th, 2013, 10:30	#2
SonyVaio VOC Member Last Online: Feb 26th, 2016 19:58 Join Date: Aug 2011 Location: Exmouth	Chances are it is the internal battery in the siren unit that has failed and needs replacing but it is a bit of a job. It could also be a faulty sensor too but you would need codes read to pin point the failure.

Dec 27th, 2013, 18:33	#7
SonyVaio VOC Member Last Online: Feb 26th, 2016 19:58 Join Date: Aug 2011 Location: Exmouth	Sorry for delay but with it being Christmas and all. On a 04 > Onwards S40 The Siren unit is in the Plenum Chamber, you need to remove the scuttle pan (4 x clips) and remove the wiper blade arms to gain entry. On a RHD vehicle it sits on the near side (passengers side). The siren unit is held in place by 4 x M6 bolts and should be torqued to 10nm. When you've removed the scuttle pan then there is a protective plenum chamber cover which is plastic welded on at the back end. When you get this cover off you will think you've broken 3 clips but that is the welds. You need to clean the remains of the welds off by using a chisel or similar implement and then when finished use butyl tape or similar to re-secure the plenum chamber cover. All the best with it. If you have difficulties post back up and I'll see if I can post up the VIDA pics.

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