Any help re my faulty alarm?
Any help re my faulty alarm?
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Discussion

misterx

Original Poster:

656 posts

279 months

Sunday 7th January 2007
quotequote all
Drove 150 miles from Kent to Norfolk in the wet yesterday morning. Parked up as normal. An hour later the alarm goes off. Tried everything to silence it; lock, unlock, open doors, close doors, drive around etc etc but still it carried on. Finally I lifted the front clam and the noise stopped. I closed clam and left the car unlocked for a few hours until time to drive home, then 25 minutes down the A11 the alarm starts off again of its own accord when I'm driving along. Decided to grin and bear it as it was dark and I just wanted to get home. Alarm stopped after 10 minutes and I didn't get any more problems for the rest of the journey which was another hour and a half. Left car unlocked (ie alarm unset) in garage overnight, and all was quiet.

So..... Is is a wet sensor that will go back to normal when dry, or is if somethinf more persistant.

If I try and dry it off with a hairdryer, where under the front clam ro I point it?

Not the first time the car has been driven in the wet but the first time this has happened to me. Why is the alarm so sensitive that something like this should happen? Its England and we get rain.

Ash M400

3,836 posts

270 months

Sunday 7th January 2007
quotequote all
This has happened to me.

Water has got in via the front bulkhead.

Near offside wheel, follow the cable from the speedo detector into the car, that is where the water is coming in. Get some silicone sealant and re-seal.

AMG Merc

11,955 posts

282 months

Sunday 7th January 2007
quotequote all
Clean the rear clam alarm sensor (located near the filler neck). BTW, AFAIR there is no alarm sensor on the front clam.

misterx

Original Poster:

656 posts

279 months

Sunday 7th January 2007
quotequote all
Thanks for the replies. I can't see a sensor under the front clam either, though the handbook does refers to alarm activation if the doors, boot or bonnet are opened. Quaint terms, boot and bonnet. Weird that the alarm only stopped yesterday when I opened the front.

Cleaned around the sensor near filler cap, but in truth it looked completely clean anyway.

Car now locked and alarmed, so I guess I wait and see.

pbsaxman

977 posts

254 months

Sunday 7th January 2007
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My alarm doesn't go off when I open either clam, so I'm assuming no sensor on either

joust

14,622 posts

288 months

Monday 8th January 2007
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pbsaxman said:
My alarm doesn't go off when I open either clam, so I'm assuming no sensor on either

Nope - just corroded. Once they do the Alarm doesn't sense the opening.

J

pbsaxman

977 posts

254 months

Monday 8th January 2007
quotequote all
joust said:
pbsaxman said:
My alarm doesn't go off when I open either clam, so I'm assuming no sensor on either

Nope - just corroded. Once they do the Alarm doesn't sense the opening.

J


Are you sure? As the car is only a couple of months old AND they did not work from when the car was delivered albeit I didn't try it until the car was two weeks old I'd be surprised. However, I'll get Moley to check. Maybe thats the payoff for the chip protectors

joust

14,622 posts

288 months

Monday 8th January 2007
quotequote all
pbsaxman said:
Are you sure? As the car is only a couple of months old AND they did not work from when the car was delivered albeit I didn't try it until the car was two weeks old I'd be surprised. However, I'll get Moley to check. Maybe thats the payoff for the chip protectors
Probably, without regular cleaning and regular doses of WD40 or similar they'll corrode in weeks or even days in this weather!

J

pbsaxman

977 posts

254 months

Monday 8th January 2007
quotequote all
joust said:
pbsaxman said:
Are you sure? As the car is only a couple of months old AND they did not work from when the car was delivered albeit I didn't try it until the car was two weeks old I'd be surprised. However, I'll get Moley to check. Maybe thats the payoff for the chip protectors
Probably, without regular cleaning and regular doses of WD40 or similar they'll corrode in weeks or even days in this weather!

J


Right, next dry day out comes the emery/switch cleaner/WD40 Cheers J thumbup

pbsaxman

977 posts

254 months

Wednesday 10th January 2007
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Oh I love this site. Loose spade connector causing no clam alarm. Cleaned and refitted now works perfectly

Thanks guys

Peter

ps sorry for nicking your thread but it sorted my problem

joust

14,622 posts

288 months

Thursday 11th January 2007
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Glad the collective could be of help again.

J

wjs

75 posts

237 months

Thursday 11th January 2007
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Edited by wjs on Thursday 11th January 15:51

wjs

75 posts

237 months

Thursday 11th January 2007
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same thing happened to me. The fault with mine was the siren itself they can get corroded mine was replaced and no problem since. i believe a dealer can detect the fault by way of the instrument panel.