Octavia Sunroof

[spellbound]

Yep thats why they open to that amount by default. Usually they get the vibration around a certain speed....I find it around 30km/hr in the Octy and my previous car. Because you rarely drive at that speed its not really an issue.

Just drop one of your rear windows about 60mm , no warren buffets

[woofy]

I wasn't going to throw that into the mix, I have small kids so that one is no longer an option....I get buffeting once in a blue moon, I saw it more with our Hollandia roof which was a lot bigger.

[Gnat]

Arh! Learn something new every day!
Owners manual !? Only real men skip the manual !

[SKODA vRS147]

Arh! Learn something new every day!
Owners manual !? Only real men skip the manual !

I suppose you dont eat Quiche either.
Personally i never read the destructions on most things - especially self assembly stuff and that is why i always end up taking twice as long to complete the job.

The reason why i had read the Owners Manual so much was due to the waiting before i got my hands on the vehicle. It was my only link to the vehicle i was getting.

[VRS147]

I actually found that about 1 year later, I always having the sunroof tilt. thanks for sharing about droping 60 mm rear window to stop buffeting, will try it tomorrow,

[K1W1]

It's the same on all vehicles. If you have air coming in you need to have somewhere for the air to go out otherwise you get the booming or buffeting effect.
That's the good thing about old style station wagons that have drop down rear windows.

[Rosie]

In what seems another lifetime I owned a BMW E30 325is. The sunroof functions were the same as the current VAG roofs. The only differences were that it was a metal panel, not glass, and there was a 40 or so mm tinted plastic flap across the front of the opening that automatically popped up once the roof was opened more than about 1/3 of the way. These flaps was common on many older style sunroofs, many of which had much bigger openings than today's sunroofs.

The flap was there to create a low pressure area behind it, making the air presure inside the car higher than the air going over the roof opening (think leading and trailing edges of an aircraft wing). Result - no annoying air buffetting, whether on Autobahns, on Europes 130kph motorways, or driving the kids to school. There must be a reason that engineers have phased the flaps out, but aside from cost (which companies generally aren't shy about passing them on to consumers) I can't figure out why modern cars now have air buffetting, and their 30 year old predecessors didn't, and all for the sake of a cheap piece of plastic and a couple of spring loaded hinges.