Appears there is some wind noise that seems to be coming from the sun-roof (closed) when driven at 35+ mph. The noise becomes niticably less when the interior panel is closed also. Without being in the front passenger seat, this is the closest area I am able to diagnose from the drivers position.
Anybody have any ideas on how the sun/moon roof could be adjusted to ensure a good seal? Incidentally, there is no water leak from the glass panel confirmign a really bad 'air leak'.
Maybe it is not the sun roof panel but door seals! Any experience or info with that?

 

Nash,

Had the same problem with mine (05 XJ8L) - I bought it used when it was 5 yrs old and I noticed the noice as soon as I started driving it home. Like you, I could silence the noise by closing the interior panel.

I went to my friendly local hardware store and bought a roll of foam rubber weathestripping that has a self-adhesive backing. Applied it to the car where the sunroof would hit it when it closes and voila! No more wind noise.

I've forgotten what thickness, but think it was probably half inch. You don't want it too thick, becasue if it's too thick, when the sunroof hits it it feels like an obstacle and the sunroof will automatically retract.

Maybe there is a more sophisticated way - some sort of adjustment - but I'm a believer in the KISS principle (Keep It Simple, Stupid).

Hope this helps.

Ray

 

What a simple concept. I will give a try. . . Thanks, Ray!

 

I get the same wind noise, tried using the 'gummy' conditioner for seals, but didn't help. I may try the weatherstrip addition as a pretty fix.

 

@Ray

Thanks for the tip. I have the same issue and had resigned myself to not being able to drive around with the cover retracted, which was a shame because I have a dark interior and it needs more light. I'm off to home depot to give this a try. I assume you can still open the sunroof normally when you want to?

 

Sarc,

Yep, opens/closes normally. I hardly ever open mine, though. With the cabin air filter doing such a great job of keeping dust and our springtime NC yellow pollen out of the interior, I tend to keep windows and sunroof buttoned up.

As I mentioned, though, you don't want to use too-thick weatherstripping because the sunroof will perceive it as an obstacle and retract when you're trying to close it. One would hope the automatic retraction would work equally well if a finger were in there, but I'm not about to test it!

Ray

 

Its matter of sunroof adjustment. Sun roof should be approx 1.5- 2.5mm lower than the roof. If the sunroof is higher than the roof, you will get turbulence around the opening.

Try this experiment. Drive at the speed of wind noise. Just briefly touch the sunroof button as to move the sun roof open, but not to fully open it. When the noise disappears,play with the best choice. pull over and check the opening height of the sunroof, front and rear and adjust accordingly.
See if this helps.

 

George,
How is the sunroof adjusted? I don't even see a manual closing/opening point like I used to have on the beemers with a sunroof. It was a small allen wrench hole that you could insert the tool in to close it and keep the rain etc out of the car should the panel fail to close for some reason...

Thanks,

 

Ooooh, adjustment..will check back!

 

Any updates on the adjustment procedure? I just picked up a 06 SV8P from L.A. and drove it back to the SF bay area and the car definitely has an issue with the sunroof sealing properly. Haven't downloaded the manual for the X350 yet, so I am curious about this.

 

UPDATE: I did stick some foam sealer on the front edge and around the same curve(s) of the sunroof opening and the wind noise has been reduced a fair amount. Thanks to Ray for his suggestion!
But I can still hear some wind noise, so if there is an adjustment out there, the info would be good to have and try a fix...

 

I have only had the car for 12 hours but I have been able to dig up the following:
Roof Opening Panel Alignment.pdf

This may also be related:
Roof Opening Panel Motor Sync.pdf

These are fairly vague but I will attempt the alignment procedure today and post the results.

 

Could not get that torx screw to budge. Let me know if anyone else has any luck.

 

well I have to report I have the same windnoise as well. I plan to investigate a bit further and inspect the rubber seal with the window open. The seal may have shrunken a bit over the years. The exterior rubber seals on my windshield and sunroof have a thin layer of dirt on the exterior from previous car detailing and perhaps there is the same layer in the sunroof??
thanks Rayalbers for the quick fix. looks like its a simple solution to an annoying problem.
I may look at the adjustment options while inspecting the gasket.
RyeJag

 

I noticed my sunroof seal was looking tired and slightly cracked the other day when washing the car. I was going to price a new one, but haven't gotten around to it yet. The glass adjustment seems fine, but likewise I keep the interior shade closed at highway speeds.

 

I used georgekyle's (?) trick and it worked great, adjusted the rear until it was 1mm below the rear roof (the quietest point) was about 1.5-2mm below before. Can't get to the front adjustment because of that plastic bit, don't want to break it, the front is flush with the roof. Still a bit of noise but better, although it was not that bad before, but closing the cover did make a bit of a difference. No problem with the Torx screws.

Stu

 

The trick is to fine tune height of the rear just below the rear roof lip.
Airstream flowing up from the roof to create slight vacuum in the roof opening. Drive at the speed where the wind noise is most evident, tap the roof switch as to get slight movement down. Pull over and note the position of the roof height. Note: right torx socket 1/4 Dr Snap-on with swivel joint and extension make the front less of problem. Be careful not to strike the glass with the ratchet when trying to loosen the torx bolts.

 

Thanks to all of this information I was able to solve the wind noise. Now, how to re attach the sight shields? Any ideas would be appreciated.
Dave