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Henrik07



Member Since: 14 Apr 2016
Location: Bergen
Posts: 63

Norway 2007 Range Rover Vogue TDV8 Santorini Black
Alarm gets triggered by the sun

Here's a strange one:
My 2007 tdv8 vogue triggers the burglar alarm whenever it's parked out in the sun on a warm day. It never happens in the rain or if there's a fairly dense cloud cover, but if the sun peeks through for more than a few minutes, off it goes.
Now, I covered what I believe to be the motion sensors up with tape (front and rear of the dome light cluster), but that didn't make a difference.

Any ideas? Is there a way to know which exact sensor was triggered?

It's been going on all summer and it's a nuisance.

Thanks!

Post #671840 23rd Aug 2023 1:46pm
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stan
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Member Since: 13 Jul 2010
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United Kingdom 

its probably the bonnet getting hot and setting the sensor alarm off..disconnect it and see if that helps.. ... - .- -.




Y. O. L. O.
.

Post #671842 23rd Aug 2023 1:53pm
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Henrik07



Member Since: 14 Apr 2016
Location: Bergen
Posts: 63

Norway 2007 Range Rover Vogue TDV8 Santorini Black

Thanks.
I did consider this, as I have read that the bonnet switch is a common failure, but mine is a 2007, so post facelift model, and it doesn't have that switch poking up from the battery box. Neither have I ever had a "bonnet open" warning whilst out driving.
Do you know where that switch moved to, if I wanted to try your suggestion? It seems to me it would have to be on the latch somehow, hidden from view and access.

H.

Post #671843 23rd Aug 2023 1:58pm
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paulbrown22



Member Since: 23 Dec 2017
Location: London/Poole
Posts: 352

United Kingdom 2011 Range Rover Supercharged 5.0 SC V8 Stornoway Grey

On my 2011 Supercharged I had exactly the same a year or two ago, the alarm going off (thinking the bonnet was open) on super sunny days. On mine the bonnet switch/plunger is on the opposite side to the battery. I ran with it disconnected for several months until I next placed an order for parts (as the switch itself cost less than the postage I think!), but did then fit a new switch and it's been absolutely perfect again for the last year or so.

Post #671867 23rd Aug 2023 9:21pm
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Henrik07



Member Since: 14 Apr 2016
Location: Bergen
Posts: 63

Norway 2007 Range Rover Vogue TDV8 Santorini Black

I've been nosing about under the bonnet looking for that switch, without success. However, if your 2011 has the simple plunger, I'm stumped to figure why they would do it differently on the diesel. Seems as if some more nosing around is called for. It's not as if there isn't room for it under there....
Mine is a lhd 2007 tdv8. If anyone knows the exact location of the bonnet switch, please enlighten me Smile

Thanks!

Post #671868 23rd Aug 2023 9:30pm
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Henrik07



Member Since: 14 Apr 2016
Location: Bergen
Posts: 63

Norway 2007 Range Rover Vogue TDV8 Santorini Black

I found it. It's been staring me in the face this whole time. Unplugged it now, so we'll see how it goes.

Thanks!

Post #671936 24th Aug 2023 4:50pm
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mjdronfield



Member Since: 04 Nov 2011
Location: Derbyshire
Posts: 7796

United Kingdom 2011 Range Rover Vogue SE TDV8 Buckingham Blue

If it’s still the plunger, bend the bracket up so it’s nearer the bonnet or put a grommet or similar on the end to make it a bit longer, though obviously if you unplug it, it will prove that it’s the issue.

Might not be faulty, just a bit too low when the bonnet heats up in the sun…

Thumbs Up 2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

Post #671939 24th Aug 2023 5:25pm
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Henrik07



Member Since: 14 Apr 2016
Location: Bergen
Posts: 63

Norway 2007 Range Rover Vogue TDV8 Santorini Black

Thanks. I read that tip before, which is why I went looking for the switch in the first place. It's all a very plausible explanation, with one major flaw: I never got a random "bonnet open" warning when the car was running - not once. It still remains the most likely culprit, but I'll just have to see. Typically, It's now cloudy with occasional drizzle and no warm and sunny days ahead. I may have to wait until May '24 before I can close the book on this one... Razz

Thanks again, everybody!

Post #671961 25th Aug 2023 6:27am
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mjdronfield



Member Since: 04 Nov 2011
Location: Derbyshire
Posts: 7796

United Kingdom 2011 Range Rover Vogue SE TDV8 Buckingham Blue

I didn’t get a bonnet open when running either.

Thumbs Up 2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

Post #671968 25th Aug 2023 8:07am
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