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Cannot find bonnet switch

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Strollerbird
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Cannot find bonnet switch

Post by Strollerbird » Sat Mar 10, 2018 3:18 pm

I have read a number of posts on here about replacing the bonnet sensor. I have laid my z4 up over the winter and the warning light is on all the time even though the bonnet is clearly safely down.
Despite reading the posts I cannot find the switch - it is not near the where the cross struts join or under the windscreen wiper

Can anyone send me a picture of where it definitely is please?

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Crazy Harry
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Cannot find bonnet switch

Post by Crazy Harry » Sat Mar 10, 2018 3:32 pm

Hi and welcome to the forum - sorry I can't (wrong type of Z4 for you).

Now you've found us how about posting some pics of your car and an introduction? - we like that sort of thing here :thumbsup:

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jabber
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Cannot find bonnet switch

Post by jabber » Sat Mar 10, 2018 3:47 pm

That is for the e85 not the e89
Z less again
14 E89 Z4 2.0 msport grey gone now
10 E89 Z4 3.0 Black auto now. Very sadly gone
Gone 04 E85 z4 3.0 Maldives blue smg

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Crazy Harry
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Cannot find bonnet switch

Post by Crazy Harry » Sat Mar 10, 2018 4:02 pm

If it's a E85 not an E89 I can help - although I've never had anything to do with the bonnet switch. Here
IMG_0399[1].JPG
IMG_0399[1].JPG (181.81 KiB) Viewed 1068 times
I thought this was it where the cross braces meet. If yours isn't here check that the mount hasn't broken and the switch fallen behind the engine.

If I'm wrong someone will be along to put me right soon enough

Strollerbird
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Cannot find bonnet switch

Post by Strollerbird » Sun Mar 11, 2018 9:27 am

Thanks for your reply
It is an E89
S drive 2.3i
I am now puzzled - there are no signs of anything having been on the cross members and no tell tale cable dangling down
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89252330-1AA8-46F2-B3AF-DF31CECEDC1F.jpeg
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Crazy Harry
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Cannot find bonnet switch

Post by Crazy Harry » Sun Mar 11, 2018 9:32 am

Strollerbird wrote: Sun Mar 11, 2018 9:27 am Thanks for your reply
It is an E89
S drive 2.3i
I am now puzzled - there are no signs of anything having been on the cross members and no tell tale cable dangling down
In that case I'm no good to you :oops: Ignore the photos of the switch position on my car and wait for an E89 owner to come along.

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jabber
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Cannot find bonnet switch

Post by jabber » Sun Mar 11, 2018 12:19 pm

Having looked on realoem I think the bonnet switch is item 3 in the following diagram
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5914DBB0-F185-4144-94B7-C6559FD9C3C8.png
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Z less again
14 E89 Z4 2.0 msport grey gone now
10 E89 Z4 3.0 Black auto now. Very sadly gone
Gone 04 E85 z4 3.0 Maldives blue smg

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Smartbear
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Cannot find bonnet switch

Post by Smartbear » Sun Mar 11, 2018 2:11 pm

Strollerbird wrote: Sat Mar 10, 2018 3:18 pm I have read a number of posts on here about replacing the bonnet sensor. I have laid my z4 up over the winter and the warning light is on all the time even though the bonnet is clearly safely down.
Despite reading the posts I cannot find the switch - it is not near the where the cross struts join or under the windscreen wiper

Can anyone send me a picture of where it definitely is please?
Raise the bonnet & close it firmly with a hand either side in line with the headlights, it’s very easy to leave it slightly ajar and it’s not always obvious :thumbsup:
Rob
Image

e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
e89 Sdrive 30i, this ones busted, pass me another...
e85 3.0si sold

mcbutler
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Cannot find bonnet switch

Post by mcbutler » Sun Mar 11, 2018 4:09 pm

It would make a lot more sense to have the switch on a front closing bonnet at the front. I believe the bonnet has two locks either side of centre so you must make sure both are pressed down and 'clicked'. As the previous poster said, press gently both sides of centre to ensure a good 'lock'.
I made this mistake as a new owner also.
Mark
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35i
Carmine Red
Black leather

LeePreston
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Cannot find bonnet switch

Post by LeePreston » Tue Mar 13, 2018 10:09 pm

Hope you have some luck with the advice. I got caught with this towards the end of last year, but a push on the bonnet above the catch locations fixed it...... that time

But the same problem has come back. It's been going on for a month now, and tonight i tried lifting the bonnet from each wheelarch whilst 'locked' The bonnet on the drivers side will lift a little, whereas the n/s does not at all. I think that rhs lock is no longer engaging when pushing the bonnet shut.

What started out as a suspected electrical gremlin (battery needs to be replaced), looks to be a more mechanical.

Has anyone got any suggestions? Not sure if it's just a lubrication issue, or whether there's a common fault here?

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