Jeez, the back of these wagons attracts dust like crazy. The slightest bit of dirt road and it's all over the back window. I've had lots of station wagons and never had this problem. Is it the sloping window? I think I'd prefer a more conventional shape rear (also to get back more useful shaped inside space) like they had on the Octavia I.
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Wagon rear = dust magnet
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Wagon rear = dust magnet
2008 Skoda Octavia Elegance TDI 4x4 wagon
Bluefin 132Kw/385Nm, Racechips Response Control, Haldex Performance controller, H&R anti roll bars, Koni FSD shocks, SuperPro control arms & ball joints, subframe & gearshift mods, Full Dynamat interior, Polk Audio sound, Columbus, Bluetooth, MDI, parking sensors, camera. BBS SR 18x8" w/ 225/40xR18. 3M Crystalline tint.Tags: None
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Its caused by the way the air rolls back after passing over the roof similar to the action of air across an aircraft wing
Back years ago people used to fit a diffuser ( for want of a better word) that directed air down across the rear and it seemed to help a bit.
May depend on how often you clean it as to how obvious it becomes. LOL
Also a very good reason why you shouldnt travel with the taildoor up or the window open as it will suck the exhaust fumes into the car with sometimes dire results.2021 Kamiq LE 110 , Moon White, BV cameras F & B
Mamba Ebike to replace Tiguan
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Every car I have had has been a hatch or wagon and all have suffered the same problem.
Yes it's annoying and the first thing that makes me think "jeez, car needs a bath!" but at least we have a back wiper to give us some clear view.
If it's just dry dust I generally just blow it down with an air compressor or lightly fan it off (for want of a better word) with a towel.*****CURRENTLY FOR SALE***** See Sale thread
Candy White MY12.5 Octavia VRS TSI DSG wagon.
Black Plasti Dipped wheels, grille surround, roof rails and badges. Lowered 20mm, torque arm insert.
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My Mazda 3 seems to be worse in this respect than my Octavia wagon2012.1 Skoda Octavia VRS DSG Wagon - Carbonio cold air intake and pipe - HPA Motorsports BBK 355mm rotors 6 pot calipers
APR Stage II ECU - APR 3" exhaust down pipe & high flow catalyst
APR/HP Roll bars - Eibach springs and Bilstien shocks
Supaloy lower control arms - Enkei 18*8 Wheels
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This is not the best picture in the world but it should explain things (I hope)
On a car shape there is a vortex created in that area behind the taillights. As the car moves forward the air in that area actually rotates clockwise in this case and sucks the road grime from behind the car and the air coming under the car back up onto the rear of the vehicle. On a car shape this is the obviously the taillight area of a wagon shape this is the whole rear of the vehicle. As mentioned above driving a wagon with the tailgate or rear window open is a really bad idea.
For those interested in racing this is the area you need to get into to get a tow or draft the vehicle in front. If you can get into this area you can actually feel your vehicle being sucked forward into the rear of the vehicle in front (don't try it on the road please).
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It is nothing more than a result of vehicle design. There is an area of lower pressure that bubbles along behind the car.
In the past various "tricks" have been used. For those old enough, you will remember the roof line deflectors fitted to station wagons to direct air over the rear windscreen. Mercedes Benz even re-designed their tail light lenses with deep grooves because they found the smooth tail light lenses were dirtying up too easily.
Now the solution to rear visibility is a wiper on the rear windscreen. Of course it does not do anything for dirt on the rest of the rear of the vehicle.
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Originally posted by Swampy View PostThe vertical lip at the top of the tailgate certainly doesn't help, as it stalls the air against the rear glass. Polish the rear window with Rainex and the dust build-up is reduced as it can't 'grip' onto the glass as well.
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I know why the dust is trapped there by the airflow, just saying it's much worse on the Octavia than previous cars. It's either the 'fastback' euro style slope of the window and/or the goo I'm using on the window (Nanolex - fancy overpriced Rainex).
If it's the slope I would think they could design a modern version of the old Valiant station wagon style 'diverters' into the mini spoiler at the top of the window, but I s'pose that defeats the purpose of the spoiler.
Maybe an opportunity for the aftermarket boys?2008 Skoda Octavia Elegance TDI 4x4 wagon
Bluefin 132Kw/385Nm, Racechips Response Control, Haldex Performance controller, H&R anti roll bars, Koni FSD shocks, SuperPro control arms & ball joints, subframe & gearshift mods, Full Dynamat interior, Polk Audio sound, Columbus, Bluetooth, MDI, parking sensors, camera. BBS SR 18x8" w/ 225/40xR18. 3M Crystalline tint.
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Originally posted by wfdTamar View PostIf it's the slope I would think they could design a modern version of the old Valiant station wagon style 'diverters' into the mini spoiler at the top of the window, but I s'pose that defeats the purpose of the spoiler.
Maybe an opportunity for the aftermarket boys?
I frequently go to a farm on weekends. Each round trip in and out off the highway is 14 kms on a well maintained dirt road. I'd go in and out 3 or 4 times on a weekend. I could go in and out 20 times and it wouldn't matter. After the first time it looks like I've just crossed the Simpson Desert, but so what? I use a good polish, and Duragloss Aquawax in between polishes, so whether it's a little dirty, or a lot dirty, the paint is protected and it doesn't take much effort to wash it.
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Originally posted by BottomScratcher View PostThe number of cars I remember seeing with rusted out tail gate bottoms that were fitted with dust diverters leads me to think that they were probably as effective as a Mars Bar in a knife fight.
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Originally posted by K1W1 View PostThe standard thing to do with any 1970s vehicle was to get a drill and drill out the drain holes to a decent size as soon as possible so they would not block up.
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