I've always been rather envious of S-classes and the like with their fancy rubber door insulation strips. So off to AliExpress to find a suitable width and profile. I've seen a few people retrofit this and it often looks terrible, but very happy with how this turned out, quite OEM, with a perfect seal when closed, and not visible from the outside.

Does it work ? 

A link might be useful for others to see the exact item. 

1 hour ago, john999boy said:

A link might be useful for others to see the exact item. 

 

Of course:

€ 2,95  35%OFF | Car Door Seal Strip Auto Rubber Seals Strips Noise Insulation Soundproofing Weatherstrip Car Door Protector Trunk Edge Stickers
https://s.click.aliexpress.com/e/L9oKOZ04

What other effect does it have besides that it fills the cap when door is closed?

14 minutes ago, Paikesejanku said:

What other effect does it have besides that it fills the cap when door is closed?

 

I'd say it may help to keep noise out, there must be a reason you see these on high end cars, but not so much as you would notice.  The car is very quiet to start with, however every little helps.

 

Will also help to keep the car afloat if I ever drive into a lake.

Edited 28 November, 20196 yr by Steviedakota

My neighbours škoda octavia GenIII pre facelift, has those strips from factory - so it's not only for high end cars  Just not for Superb.

On 29/11/2019 at 01:00, Paikesejanku said:

My neighbours škoda octavia GenIII pre facelift, has those strips from factory - so it's not only for high end cars  Just not for Superb.

 

Was on my previous MK6 Jetta also...

Wife`s Yeti also has has those strips from factory.

Added strips to the rear doors and along the edges of the bonnet. My wife owns the same car as me and my one is much quieter as a result of all these tweaks. Some of them are of course more useful than others but they all add up.