ALarm going off when hot?

monkeynuts · 06-28-2009, 11:49 AM

Hi all... did a search and found lots of threads about being able to tell if the Alarm is working but none about it going off for no apparent reason?!

Mine went off 5 times in succession today - eventually had to use the key to lock it to stop it sounding. Probably one of the hottest days of the year today - don't know if that's a factor?

I had this on a Mini in the past and it seemed to cure itself before I took it to the Dealer.

I tried the 'double click' on the fob to disable the interior sensors, but it still went off 5-100 minutes later.

Now off to check for large insects!

Anyone had similar issues with their Alarms?

trixman · 06-29-2009, 03:59 AM

Nope... and mine has been in Spain for the last year. Signficantly hotter and no alarm problems at all.

greatbm · 06-29-2009, 05:38 AM

[QUOTE=monkeynuts;5410656]Hi all... did a search and found lots of threads about being able to tell if the Alarm is working but none about it going off for no apparent reason?!

Mine went off 5 times in succession today - eventually had to use the key to lock it to stop it sounding. Probably one of the hottest days of the year today - don't know if that's a factor?

I had this on a Mini in the past and it seemed to cure itself before I took it to the Dealer.

I tried the 'double click' on the fob to disable the interior sensors, but it still went off 5-100 minutes later.

Now off to check for large insects!

Had a number of BMW's over the years with factory fit alarms and no false alarms yet. If you have eliminated the motion and tilt sensor by double click it has to be direct switching bonnet, boot or doors or even a fault with the alarm unit itself. I would check the bonnet switch first as this is in the most hostile position.

SiKkBaSs · 06-29-2009, 05:56 AM

I had a problem with mine when I bought it. The alarm used to go off randomly, very annoying for yourself and neighbours. Is there a faulty sensor while your driving? Any lights on the dashboard? Mine was due to an electrical sensor being faulty, which corrupted the system, causing the alarm to go off at random intervals. I took it to the dealer who sorted it out. Apart from that

monkeynuts · 06-29-2009, 10:05 AM

Thanks for the replies everyone....

Greatbm - interesting that you mention the bonnet sensor as I had problems with that before although no warning lights at the moment.

Lightweight - no wanring lights when driving.... it's a mystery.

Perhaps it was a Fly or something that had got in the car. I had been cleaning it earlier in the day and had opened the doors to clean the seels.... you never know.

As far as I know, it hasn't done it again today so hopefully it's just a one-off.

NFS · 06-29-2009, 10:22 AM

Quote:

Originally Posted by monkeynuts

Perhaps it was a Fly or something that had got in the car. I had been cleaning it earlier in the day and had opened the doors to clean the seels.... you never know.

You need to put a spider in there to get the fly.

SiKkBaSs · 06-29-2009, 10:38 AM

Quote:

Originally Posted by NFS

You need to put a spider in there to get the fly.

Use this instead

monkeynuts · 06-29-2009, 10:39 AM

Quote:

Originally Posted by NFS

You need to put a spider in there to get the fly.

Already got a Spider but it's plugged into my common rail under the bonnet - it doesn't eat Flys unfort!

monkeynuts · 06-29-2009, 02:52 PM

Bugger - still going off. Sure it has to do with heat as it started in the mid-late afternoon after cooking all day!

Into the Dealers ASAP.

jonsteele · 06-30-2009, 02:15 AM

Mine did this just after I took delivery - it wasa faulty OSF door lock module. However, it also kept telling me that the door was open whilst driving, and if you aren't getting any warnings it must be something different.

monkeynuts · 07-02-2009, 12:45 PM

Turned out to be a faulty bonnet sensor - replaced under warranty. Hopefully that's the end of it!

06-28-2009, 11:49 AM	#1
monkeynuts Private 1 Rep 55 Posts Drives: BMW 320d SE Join Date: Dec 2008 Location: UK iTrader: (0)	Hi all... did a search and found lots of threads about being able to tell if the Alarm is working but none about it going off for no apparent reason?! Mine went off 5 times in succession today - eventually had to use the key to lock it to stop it sounding. Probably one of the hottest days of the year today - don't know if that's a factor? I had this on a Mini in the past and it seemed to cure itself before I took it to the Dealer. I tried the 'double click' on the fob to disable the interior sensors, but it still went off 5-100 minutes later. Now off to check for large insects! Anyone had similar issues with their Alarms?
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06-29-2009, 03:59 AM	#2
trixman Major 33 Rep 1,269 Posts Drives: A Rental Join Date: Sep 2008 Location: Creepy Crawley iTrader: (1) Garage List 2007 BMW E92 335d [0.00] 2003 M3 CSL [0.00] 2007 E92 335i [0.00]	Nope... and mine has been in Spain for the last year. Signficantly hotter and no alarm problems at all.
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06-29-2009, 05:38 AM	#3
greatbm Major 148 Rep 1,060 Posts Drives: G15 840i Coupe Join Date: Feb 2007 Location: North East iTrader: (0)	[QUOTE=monkeynuts;5410656]Hi all... did a search and found lots of threads about being able to tell if the Alarm is working but none about it going off for no apparent reason?! Mine went off 5 times in succession today - eventually had to use the key to lock it to stop it sounding. Probably one of the hottest days of the year today - don't know if that's a factor? I had this on a Mini in the past and it seemed to cure itself before I took it to the Dealer. I tried the 'double click' on the fob to disable the interior sensors, but it still went off 5-100 minutes later. Now off to check for large insects! Had a number of BMW's over the years with factory fit alarms and no false alarms yet. If you have eliminated the motion and tilt sensor by double click it has to be direct switching bonnet, boot or doors or even a fault with the alarm unit itself. I would check the bonnet switch first as this is in the most hostile position. __________________ G15, 840i M Sport
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06-29-2009, 05:56 AM	#4
SiKkBaSs GTR'in it 169 Rep 4,434 Posts Drives: Nissan GTR Black Edition Join Date: Jun 2008 Location: Kensington, London iTrader: (2) Garage List 2006 325i [0.00]	I had a problem with mine when I bought it. The alarm used to go off randomly, very annoying for yourself and neighbours. Is there a faulty sensor while your driving? Any lights on the dashboard? Mine was due to an electrical sensor being faulty, which corrupted the system, causing the alarm to go off at random intervals. I took it to the dealer who sorted it out. Apart from that
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06-29-2009, 10:05 AM	#5
monkeynuts Private 1 Rep 55 Posts Drives: BMW 320d SE Join Date: Dec 2008 Location: UK iTrader: (0)	Thanks for the replies everyone.... Greatbm - interesting that you mention the bonnet sensor as I had problems with that before although no warning lights at the moment. Lightweight - no wanring lights when driving.... it's a mystery. Perhaps it was a Fly or something that had got in the car. I had been cleaning it earlier in the day and had opened the doors to clean the seels.... you never know. As far as I know, it hasn't done it again today so hopefully it's just a one-off.
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06-29-2009, 02:52 PM	#9
monkeynuts Private 1 Rep 55 Posts Drives: BMW 320d SE Join Date: Dec 2008 Location: UK iTrader: (0)	Bugger - still going off. Sure it has to do with heat as it started in the mid-late afternoon after cooking all day! Into the Dealers ASAP.
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06-30-2009, 02:15 AM	#10
jonsteele Old enough to know better! 20 Rep 409 Posts Drives: 320d M Sport, Le Mans Blue Join Date: Jan 2008 Location: In a pub, in the middle of nowhere! iTrader: (0) Garage List 1989 Landrover 90 [0.00] 2008 BMW 320d M Sport [0.00]	Mine did this just after I took delivery - it wasa faulty OSF door lock module. However, it also kept telling me that the door was open whilst driving, and if you aren't getting any warnings it must be something different. __________________ Jon Steele 320d M Sport (E90) Le Mans Blue/18" Alloys/Bi Xenons/Climate Screen/Black, Heated Dakota Leather/6 CD Changer with Dension 500/Power Mirrors/M3 Lip Spoiler/Gloss Black Grills/Through Load, Storage pack, Lumbar Support, Smokers Deletion
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07-02-2009, 12:45 PM	#11
monkeynuts Private 1 Rep 55 Posts Drives: BMW 320d SE Join Date: Dec 2008 Location: UK iTrader: (0)	Turned out to be a faulty bonnet sensor - replaced under warranty. Hopefully that's the end of it!
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