Whistling noise from the cabriolet top

[roadsession]

Hello,

I did a search to no avail - does anyone have suggestions on how to reduce/eliminate the wind noise from cabriolet top? It is most prevalent at around 80mph.

Should I try applying silicone grease or wurth gasket spray etc etc?

[Loren]

:welcome:

Model and year of your car please?

[roadsession]

Sorry - just updated my profile

[roadsession]

Bump...

Any ideas where else this wind / whistling noise comes from

[Loren]

Bump...

Any ideas where else this wind / whistling noise comes from

Please read the TSBs on this subject - as a Contributing Member you can read TSBs here online.

Porsche has covered many of the problem areas.

[roadsession]

Bump...

Any ideas where else this wind / whistling noise comes from

Please read the TSBs on this subject - as a Contributing Member you can read TSBs here online.

Porsche has covered many of the problem areas.

Loren...I tried but could find nothing under wind noise or whistling noise

[Loren]

1b/00 6101 Noises in the Convertible Top -- Aug 24, 2001

1a/00 6101 Noises in the Convertible Top -- Oct 27, 2000

1/00 6101 Noises In The Convertible Top -- Sep 15, 2000

4/03 6110 Rattling Noises From The Cabriolet Top -- May 23, 2003

[roadsession]

1b/00 6101 Noises in the Convertible Top -- Aug 24, 2001

1a/00 6101 Noises in the Convertible Top -- Oct 27, 2000

1/00 6101 Noises In The Convertible Top -- Sep 15, 2000

4/03 6110 Rattling Noises From The Cabriolet Top -- May 23, 2003

Done them all!

None of these have to do with the wind or whistling sound when the car is driven at speed...

Could be from anywhere I guess - window, misaligned hood, mirrors.... argh

[Loren]

well, if you are not sure it is coming from the top then the most likely problem is the front hood. If the front hood is not level or just a tiny bit below the front bumper then you will get some wind noise.

[wross996TT]

turn up the music or get an aftermarket exhaust...it is difficult to track down noises...do you get the noise with the top down?

[roadsession]

turn up the music or get an aftermarket exhaust...it is difficult to track down noises...do you get the noise with the top down?

Impossible to tell w/top down because it is apparent only at speeds above 70mph or so....and at that speed with the top down, all those noises are mixed up.

Can someone tell me how the hood should line up? Mine sticks up slightly above the bumper line - an exaggerated picture is below.

I tried to lower the bumper by turning the knobs clockwise but the drivers side is all the way clockwise but still sticks up a bit...

______

...........---------

hood.....bumper......front of car

Edited November 10, 2009 by roadsession

[Loren]

http://www.renntech.org/forums/index.php?s...st&p=159695

[dammad]

http://www.renntech.org/forums/index.php?s...st&p=159695

Loren,

This seems to a reference back to the same thread. I too would like to solve the 'wind noise' problem on my 1999 Cab. My hood is also riding high compared to the front.

[Loren]

http://www.renntech.org/forums/index.php?s...st&p=159695

Loren,

This seems to a reference back to the same thread. I too would like to solve the 'wind noise' problem on my 1999 Cab. My hood is also riding high compared to the front.

Yes, as I said if the front hood sits up higher than the front bumper - you will likely get wind noise.

You may have adjustment in the rubber stops at the hood and/or the bumper will need to be adjusted so that it is even or just slightly higher than the front hood.

[roadsession]

I might try the window adjustment on this thread too

http://www.renntech.org/forums/index.php?showtopic=15869

[wross996TT]

I might try the window adjustment on this thread too

http://www.renntech.org/forums/index.php?showtopic=15869

Is your window actually not sitting in the track correctly? Is it not sealing? With your top up and your windows down, do you get the whistle? If not then I wouldn't mess with the window alignment...

[wvicary]

These noises are often very difficult to track down. I start by checking all the seals of any type of damage and then wiping them down with silicone spray. The silicone will take a few days to swell the seals but I have had good success with it.

With the top up and at speed, if you open a window slightly does the noise stop??

[roadsession]

These noises are often very difficult to track down. I start by checking all the seals of any type of damage and then wiping them down with silicone spray. The silicone will take a few days to swell the seals but I have had good success with it.

With the top up and at speed, if you open a window slightly does the noise stop??

good question. I will try that and report back...

Such a newb with these issues. I came from driving just MB's and BMW's the last 20 yrs and they're sealed like bank vaults at ridiculous speeds...

[roadsession]

These noises are often very difficult to track down. I start by checking all the seals of any type of damage and then wiping them down with silicone spray. The silicone will take a few days to swell the seals but I have had good success with it.

With the top up and at speed, if you open a window slightly does the noise stop??

Well i tried that - hard to hear the whistle with the window slightly open at speed - hard to tell if it disappeared or drowned out by the other noise.

I will try leveling bumper with hood...but like I said my little bumpers under the hood is turned all the way clockwise on the drivers side already... and thats where it's sticking up a little

[roadsession]

quick update.

ran the car to 75mph with top down today. (beautiful fall day today)

It whistles.....

I can't lower the hood below the bumper line anymore than it already is :-(

[wvicary]

If you think it's coming for the front hood gap then just tape the area and test drive. Be sure to tape that won't damage the paint work, you should be able to find autobody tape at your local auto parts store.

[roadsession]

If you think it's coming for the front hood gap then just tape the area and test drive. Be sure to tape that won't damage the paint work, you should be able to find autobody tape at your local auto parts store.

Yes it's the hood gap...

now what can I do? I've adjusted the knobs clockwise as far as they'll go....

[wross996TT]

If you think it's coming for the front hood gap then just tape the area and test drive. Be sure to tape that won't damage the paint work, you should be able to find autobody tape at your local auto parts store.

Yes it's the hood gap...

now what can I do? I've adjusted the knobs clockwise as far as they'll go....

Is the bumper installed and adjusted properly?

[RFM]

Lower the trunk lock a little if the bumper is adjusted as it should, it could help, the hood should be closed by the pressure of one hand, on a spot between the crest and the bumper (definitely NOT on the crest!!)

[roadsession]

Lower the trunk lock a little if the bumper is adjusted as it should, it could help, the hood should be closed by the pressure of one hand, on a spot between the crest and the bumper (definitely NOT on the crest!!)

Newbie here - how do I lower the trunk lock?

Thanks