Rear window buffeting prevents windows from working

[mhockett]

So I've found a problem I can reproduce that I'm planning on fixing on my next dealership visit. While rolling down the road on a nice day, I decided to put the windows down. As all of you probably know, the buffeting is super uncomfortable. I rolled up the 2 front windows, then the right rear passenger window, then the left rear passenger window while moving down the road around 65mph. The left rear window would go up and then roll itself back down. It was impossible to roll it back up unless you did one of the following first:

1. Slowed the car under 40mph
2. Rolled down the front windows

What was happening was that the buffeting was soooooo bad that when the window was just about closed, it had been pushed out enough that it was not closing inside the track at the top. Normally when you open the rear door, the window pops down a smidge to miss the top trip - and when you close it, it pops back up to close all the way. The buffeting was pushing it out so it bumped the top trim and the safety mechanism was automatically rolling the rear window all the way down.

I'd say that the engineers need to find a workaround if the buffeting is so severe that it nearly pushes the windows out of the closing tracks!

I'm still trying to find window positions of any kind that are comfortable so that you can enjoy the rushing wind without being pummeled by the buffeting!

Another problem I've found is a slight buffeting when all the windows are closed. It's almost like the buffeting noise you would hear in noise-cancelling headsets when the battery starts dying. It's not super irritating, but it's definitely there. I'd be curious how to cure that problem.

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[ciaranob]

Interesting - had not as yet experience this but will try now!

An unrelated minor observation (read irritation) too is that I was disappointed that you cannot fully bring down the rear window in the CT - basically max lowering is ca. 2/3 way down - guess I was so used to having all 4 windows down in my M4 (when roof up) that I never really considered this restriction with the CT - guessing those big arches to blame? Hope it is not some daft US legal/safety issue - more I think about that the more likely it could be!