bonnet insulation.

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bosers
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Post Wed May 27, 2015 5:39 pm

Hi, I've never had any insulation/sound proofing under my bonnet. Can anyone tell me if it's a good thing to re install and if so, where to get it from? Thanks Joe
JungleGus
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Post Wed May 27, 2015 5:57 pm

It's great. New stuff doesn't flake off into pieces

BMW dealer

I needed some spray adhesive to get mine to stick right, but a vast improvement
Jona1971
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Post Wed May 27, 2015 6:44 pm

£45 Cotswolds. :)
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bosers
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Post Wed May 27, 2015 7:49 pm

Thanks fellas, Does it make a big difference to sound or is it about thermal properties?
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jimf
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Post Wed May 27, 2015 8:34 pm

interested in the answer to this too, following
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87mtech27
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Post Wed May 27, 2015 8:43 pm

I came across a new bonnet insulation yesterday on ebay. Not sure if it's genuine or fake although it's advertised as real nla piece. I'll grab the link in a bit.
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87mtech27
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Post Wed May 27, 2015 8:45 pm

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Brianmoooore
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Post Wed May 27, 2015 9:53 pm

There's always been good money to be made buying parts from BMW and selling them on to mugs on ebay.
£47.14 from Cotswold's two weeks ago, so a nice profit of around £28 if he finds his mug.
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bosers
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Post Wed May 27, 2015 9:58 pm

But is it worth having, Brian? That's what I was wondering. :D
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BenHar
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Post Wed May 27, 2015 10:04 pm

bosers wrote:But is it worth having?
I doubt it. I expect BMW fitted it for a laugh.

Ben
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bosers
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Post Wed May 27, 2015 10:23 pm

Cheers Ben, your comments are always informative and never sarcastic. Very useful.
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BenHar
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Post Wed May 27, 2015 10:31 pm

bosers wrote:Cheers Ben, your comments are always informative and never sarcastic. Very useful.
Ok, I'll put it another way.

BMW thought it was worth fitting. They probably had a valid reason for it.

Ben
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jimf
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Post Thu May 28, 2015 6:20 am

So does it make a difference to sound or not? It's a reasonable question. No point trying to be a smartarse if you don't actually know the answer. makes you look like a twat.
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reggid
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Post Thu May 28, 2015 6:54 am

it does make more noise without the insulation, it also makes the surface temp of the hood/bonnet higher which is not necessarily great for the paint.
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jmec
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Post Sun May 31, 2015 5:03 pm

Go to BMW. I've had the OE insulation kit fitted for a couple of years now it was easy to apply & still looks like new. Cost just over £50......probably because I live in Kent!
heathy325
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Post Sun May 31, 2015 5:11 pm

Yep second that I got mine from the dealer last year and was only about £50
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bosers
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Post Sun May 31, 2015 5:40 pm

Thanks fellas, some good input there. I'll give the stealers a call!
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colbee
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Post Mon Jun 01, 2015 1:01 pm

B51.48.1.972.245 cost inc vat £45.07 from the dealer, ensure that the under bonnet it totally clean before attempting to fit the new insulation. No idea if it makes much difference to sound insulation but,it does tidy up the underside of the bonnet and makes the engine bay far tidier looking
Last edited by colbee on Tue Jun 02, 2015 7:38 am, edited 1 time in total.
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Bally
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Post Mon Jun 01, 2015 6:56 pm

it does make a slight difference in noise level but was advised to fit it by garage that sprayed my bonnet as it reduces heat to bonnet which could cause hazing to paint finish