replacing windscreen

[hulbyw Senior Member Find all posts View Profile Close hulbyw]

Replacing Windscreen

Toyota dealer told me the part numbers between diesel and petrol screens are different for my 2004 Prado as well. O'Brien's are ordering the "acoustic" screen from Toyota and will replace the ordinary screen that they installed in January. Fairly impressive O'Briens warranty
Cheers...Wayne

[PradOz Advanced Member Find all posts View Profile Close PradOz]

you got to be happy with that wayne. any reasons why you cant have the "acoustic" screen in a petrol other than the cost?

[John Member Find all posts View Profile Close John]

Thanks for the info, Geoff.

Nonetheless, I think you guys are being misled by somebody. The only difference between the part numbers on the Toyota fiche is that one is a clear glass, and the other has a tinted band at the top. Both are about 5.3mm thick. Less than 10 years ago the standard windscreen glass was 6.76mm thick.

You have to ask yourself what acoustic blocking role the windscreen has? If you say diesel-petrol, wouldn't most of the noise come through the firewall into the cabin? The reality is that very little noise (if any) is actually transmitted through the glass.

Most of the noise in the windscreen area is actually related to the install and some of the factors associated with it, such as the depth at which the glass sits in the aperture (relative to original install). Too proud or too deep will give you more wind noise. An additional factor is the type of plastic trim used. Is it OEM, or aftermarket? You will also get more noise depending on whether that (and the glass) sits correctly in the aperture or not.

Good luck with it all, Wayne. You're getting a free screen. Gotta love that! But I think the dealer is misleading people by telling them there is a "special acoustic" windscreen for diesels, when in fact there isn't.

[hulbyw Senior Member Find all posts View Profile Close hulbyw]

Thanks John. The dealer actually just said the part numbers were different.He didn't really know why. When I queried it with O'Briens, the guy had never heard of the diesel screen being different but said he would check. When he got back to me he said yes there is an acoustic windscreen for the diesel. So I will ask the installer if I can put a micrometer on the acoustic glass before he installs it and will also try and measure the glass that he removes. This will not be a definitive test as the screen to be replaced is supplied by O'Briens and the new screen is apparently being sourced from Toyota however it will be interesting to see what if any difference in thickness there is.
Cheers...Wayne

[hulbyw Senior Member Find all posts View Profile Close hulbyw]

OK, Genuine Toyota screen fitted today. Due to a family emergency I was unable to be at home to measure the thickness of the new and old screens however I phoned the O'Briens installer who told me that as far as he is aware the acoustic screen has an approx 1mm thicker layer of plastic in the laminate. He also said he doubts that it will make much difference to the noise levels. I will post a further comment after I drive the Prado in a few days as to any noise difference. BTW there is no tinted band on the new screen.
Wayne

[gxl_d4d Advanced Member Find all posts View Profile Close gxl_d4d]

If you get a new screen from O'Briens, they usually have two sizes of rubber seal at for the top of the screen. Ask for the wider one. The narrow one allows water through after sustaned highway driving in the rain.

[D4D-GXL Advanced Member Find all posts View Profile Close D4D-GXL]

I got a replacement windscreen on my 08 D4D through insurance and I found it to be no different in either looks or noise. O'briens did it but i did inquire through the insurance firstly but Toyota had the same part number for both D4D and Petrol. I even asked Obriens about it before the work started and they said that only one part number existed for both engine types.

[mardoc Junior Member Find all posts View Profile Close mardoc]

OK, Genuine Toyota screen fitted today. Due to a family emergency I was unable to be at home to measure the thickness of the new and old screens however I phoned the O'Briens installer who told me that as far as he is aware the acoustic screen has an approx 1mm thicker layer of plastic in the laminate. He also said he doubts that it will make much difference to the noise levels. I will post a further comment after I drive the Prado in a few days as to any noise difference. BTW there is no tinted band on the new screen.
Wayne

hi all,
need to replace the windscreen, 'cause completly milky after a pair of sand storms in Algerian Sahara.
it was really unpleasant to see the difference from 7series windscreen an mine. (two j12 in the group, same issue)
just no idea if replace it, with genuine parts or competitor's one.
what do you suggest, guys?
cheers Mario

[Bushbasher Out of control poster! Find all posts View Profile Close Bushbasher]

If you get a new screen from O'Briens, they usually have two sizes of rubber seal at for the top of the screen. Ask for the wider one. The narrow one allows water through after sustaned highway driving in the rain.

Rain - what's that?

[John Member Find all posts View Profile Close John]

That's correct, D4D. There are 2 different part numbers for overseas applications, but the only difference is one is a "clear" glass, and one has the blue (or green) tinted band across the top. Both are 5.3mm thick.

The cost of tooling alone for producing 2 different bodies (with different depth windscreen apertures) would not be worth it to Toyota. Add to this the production/stock holding costs for different glasses and ancillaries. AS certification costs for different glasses, and the list goes on.....

Manufacturers go for as much commonality across models as possible in order to contain manufacturing costs.

Aftermarket companies can sometimes use different weatherstrips than the OEM for a number of reasons (usually cost). I don't know if WOB does this. You can always specify they use the OEM strips, but be prepared to pay the OEM cost..

When I was in the biz - (for those vehicles where there was an aftermarket strip available), only one in perhaps 20 would specify OEM. I think that it was more an expectation that we were going to use OEM anyway.

Most of the panel beaters we did work for provided the OEM trims as part of the job. Nowadays, this may not be the case because some insurance companies no longer specify OEM parts (or even new parts) when doing insurance work. Scary stuff!

[johna Member Find all posts View Profile Close johna]

RACV will not use Toyota screens in repairs etc over 2 years of age. O' Brien glass = $260-00 fitted, Toyota = $960-00 fitted.
2 different part numbers from Toyota, 1 for petrol and 1 for diesel, and only one glass from O' Brien Glass.
Just been through the exercise and RACV gave me the option of paying the $700-00 difference to have the genuine screen fitted.
I pay the extra insurance to cover glass breakage.