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post #6 of 6 (permalink) Old 12th September 2014
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Smile Re: Whistling Panoramic Sunroof *Fixed*

Hi all,

Thought I'd share my success with those looking for a solution to their ‘Whistling Panoramic Sunroof’.

I’ve a 2007 1.5dci Renault Scenic (that’s a Scenic II) with a Panoramic Sunroof. I searched many threads and found andyellis111 fix about the whistling sunroof, as mine too whistled at Motorway speeds and worse so with a Roof box fitted!!

Last year I tried andyellis111 solution which partially worked without roof box, however when I fitted a roof box the roof aero-dynamics were disrupted to greatly causing the sunroof rear to be pushed downwards and therefore the front of the sunroof to be pushed upwards directly into the air flow, which at higher speeds would enter the car causing excessive wind noise!

As we were cramped for space on our camping trip last year and wanted the extra car space for a long camping trip to France again this year, I really needed to find a successful solution to permit roof box fitting. Well that solution is here!

Fix part one:
First I purchased some Silicone Grease from Maplin and with the panoramic Sunroof fully open, I carefully applied the grease to rejuvenate the sunroof seals. The front half Sunroof seal is fully accessible and with care it is possible to apply the grease to the rear half, I didn’t find it necessary to remove the sunroof to achieve this! In addition, I applied this silicone grease to the front seal strip (the one that’s partially exposed with sunroof closed) and the under seal attached to the glass at the rear.

Fix part two:
The silicone grease application, I found, only partially fixed my whistling Sunroof. I discovered that the sunroof height can be adjusted and therefore possible to reduce the Sunroof height when closed to slightly below roof height, improving the aero-dynamic air flow and reducing the noise. The Sunroof noise was eliminated both with and without Roof box fitted! In an ideal world a panoramic sunroof of this design should be provided with a lock down to stop this happening!

So, on to the fix……….. open the sunroof partially and you should notice the two sliders, one on either side of the glass. Each slider has two torx bolts; each side can be adjusted independently; placing one hand on the Sunroof side to which you are adjusting, undo each bolt in turn and exert slight pressure to push the sunroof down, mine dropped by 2-3mm. Now repeat for the other side then close the sunroof whilst checking the front seal doesn’t catch the glass! If confident that the height is correct, open the Sunroof partially again and ensure the torx bolts are hand tight. You should now find the front of the Sunroof glass now doesn’t stand proud of the roof!

Open and close the sunroof a few times and check for fit. Now whizz down the motorway and enjoy a quiet ride!

Yes, with Roof box fitted we still had some noise, but this was only the wind noise of the box itself and not that of the Sun roof. This year we enjoyed a France trip, quieter with more space in our car due to Roof box being fitted!

Happy motoring!
Currently in hotpotatoes247's garage:
Renault Scenic 1.5dci 2007
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Nottnoc (13th September 2014)
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fixed , panoramic , sunroof , whistling

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