How well do splash guards work...

. . . against the constant fogging of the rear window in compact cars?

Hello,

My partner got annoyed after just a few days with the salt on the roads and the brown sludge accumulating on the rear of the Polo 9N, and would have liked to have mud flaps installed, those plastic pieces behind the wheels.

Do these parts actually prevent the rear window from becoming opaque so quickly, or are they more like just cleaners for the bumpers and sills?

I can't provide actual data based on experience, but...

As someone who often follows this class of riders, I frequently see the fountains they create with their rear wheels. The Polo and Corsa often spray dirty water up to 2 meters high behind them in the city because they lack a rear diffuser.
Therefore, I think it will definitely be beneficial.

On the other hand, on journeys involving a lot of highway driving, most of the dirt and dust is caused by the combined turbulence generated by all the vehicles, and that amount is not significantly reduced by just having mud flaps on *your* car.

I'd like to try out the 40 EUR option.
http://www.volkswagen-zubehoer.de/shop/product_info.php?info=p1742_Schmutzfaenger-hinten.html

m;

Hello,
In my opinion, the protection against coarse dirt on the doors and rear bumper is a good thing. You'll likely encounter fewer stones, mud, water, and grime on your own car when driving on a dirt road, and it will stay cleaner. I wouldn't care about the rear, though, as the dirt and stones would just hit the plastic. It might first hit the door(s) with considerable force, leaving craters like those on the hood.

At higher speeds, they won't help to keep the rear window cleaner. In fact, they're more likely to make it dirtier. The "fountains" that Martin described are large water droplets. However, it is the fine droplets that are swirled upwards in the wind shadow.

Mud flaps, especially on "modern" and aerodynamic vehicles, often look out of place and old-fashioned. If aesthetics and aerodynamics don't matter to you...
However, most mudguards are not designed consistently enough, meaning they are not actually long and wide enough. Effectively, the components are more likely to detach, break, or otherwise fail.

I am unable to translate "haithamina" because it does not appear to be a word or phrase in the German language. It may be a misspelling, a proper noun, or a term from a specialized field. If you can provide more context or clarify the intended meaning, I would be happy to assist you with the translation.

The splash guards are rusting like crazy because the internal frame is made of steel.
Otherwise, as I mentioned before, it's likely helpful in the city, but becomes pointless at higher speeds.

The accumulation of dirt on the rear of vehicles is primarily a matter of aerodynamics. For example, station wagons, vans, and transporters tend to get dirty more quickly. Hatchbacks and fastback designs, on the other hand, often remain verschandeln for longer. However, aerodynamic effects only become noticeable as speed increases, and most people start to notice the first effects around 70-80 km/h.

The Polo, with its steeply sloped rear, has one of the least aerodynamic shapes. The resulting suction effect is quite noticeable during highway driving. Consequently, it tends to collect dirt on its rear. The relatively flat rear window of my car gets dirty comparatively little. Furthermore, it has a subtle roof edge spoiler at the top of the tailgate. When I look at the dirt on the rear, the heavily soiled area ends at the height of the handle. Unfortunately, you still get dirty fingers when you touch it there, but the rear window remains very verschandeln for a long time. From approximately 70 km/h, the airflow clears raindrops from the rear window. The wind then pushes them in a V-shape from the sides towards the middle of the lower edge of the window. It looks great in the mirror. Perhaps a roof spoiler would be a good option for the Polo, if mud flaps are considered too conventional? It might also work with a Polo!

[img]/download.php?id=4938[/img]

For the 206, I am also looking for mud flaps for the front. The "splash guards" made of rubber, produced in Poland, are quite flexible and give way easily when driving over, for example, "police cars" . The original mud flaps, made of ABS plastic, are visually much more appealing and could theoretically even be painted. However, you should not hit them, as they would cause a reliable deformation of the fender to which they are screwed. Due to their inherent stability, they do not require a metal frame. They are riveted to the wheel arch and screwed on once to the fender and once to the sill. You don't need to drill any holes.

The design appears to be quite well-considered: there's an edge on the side facing the wheel that prevents all the dirt from being pushed out onto the vehicle's exterior by this mudguard. This edge also extends along the bottom edge (towards the road) on the wheel side. Towards the inside of the vehicle, the mudguards are open and also slightly angled. Dirt and water are therefore directed underneath the vehicle. This L-shaped edge also gives the entire component a certain degree of stability. The front mudguards actually look quite stylish when painted. Despite this, they still appear quite delicate. A disadvantage of the original part is, on the one hand, its price, which is almost 200 EUR, and the fact that you have to buy them together for the front and rear.

Hutfahrer wrote:

The Polo, with its steeply sloped rear, has one of the least aerodynamic shapes. The resulting suction effect is clearly noticeable during highway driving. Therefore, he is essentially creating a mess for himself.

That's exactly how I see it too.
If I then imagine the splash guard behind a wheel as a source of road grime, then a mudguard should actually extend down to the road surface.
But, due to the gap between the road surface and the bottom edge of the common splash guards, I fear that approximately 80% of the normal spray-induced dirt will still fly into the rear vortex zone, so that the rear window will therefore only be kept approximately 20% "cleaner" with normal splash guards .


The 9N also comes with a mini front spoiler as standard. I didn't really want to attach anything too big to it -> it looks way too flashy to me, and I think the effectiveness of cleaning the rear window would be very questionable.

There were also spoilers for hatchback bodies that were mounted below the rear window. For example, on the Corsa A or the first version of the Mazda 323. While it looked quite strange on the Corsa, it was supposed to have the desired effect. On the 323, the spoiler worked so well that it was able to deflect some of the swirling air behind the rear of the vehicle, keeping the taillights and license plate clean.

One of my friends had mud flaps that extended across the entire width of his Trabant station wagon in the early 90s, similar to what you sometimes see on trucks. While the rear of the car stayed clean, it lost almost 15 km/h of its already limited top speed. Additionally, the extra fuel consumption was supposedly enormous. But hey, the back remained clean...

If you want to know more, try searching for "Hucho".



He has written many books and is quite knowledgeable.
Most things can be easily understood through popular science explanations.

Simply borrow and browse through a book titled "Aerodynamics of the Automobile." http://www.aerowolf.de/

m;

Even though the VW customer service representative on the phone said that mud flaps probably wouldn't help much, I just ordered a set for the rear of the car – to please my partner.
If it doesn't bring any noticeable benefit, I can show her why, if she's interested:

dieselmartin wrote:

Just lend her a book like "Aerodynamics of the Automobile" and let her browse through it

-> Thanks, Martin

Optionally, you could apply an "Attika" logo (likely a brand name) from a Scirocco or Insignia Sportstourer to the rear window.

/viewtopic.php?t=20506&highlight=attikas+latest

m;

dieselmartin wrote:

Possibly attach an Attika emblem from a Scirocco or an Insignia Sportstourer to the rear window.

It's estimated that the female preference for DIY solutions will prevail - which I wouldn't necessarily be unhappy about.

Then, restructure it like this:

[img][/img]

He doesn't seem to need mudflaps .

m;http://coolmaterial.com/wp-content/uploads/2010/09/jet-beetle-1.jpg{MARKER}

dieselmartin wrote:

Then, restructure it like this: [img][/img] He doesn't seem to need mudflaps . m;

Hm, I wonder if that would be accepted as a non-custom solution...? 8Ohttp://coolmaterial.com/wp-content/uploads/2010/09/jet-beetle-1.jpg{MARKER}

Such a hairdryer is sure to impress the Holden.

Okay, Ulf... please keep in mind the added weight and the aerodynamic disadvantages of the mudguards. Maybe you could find some made of carbon fiber composite, like those used in the aerospace industry. *fg*

Benni wrote:

Oh, Ulf... please keep in mind the extra weight and the aerodynamic disadvantages of the mudguards. . .

No: not anymore on a women's car

ulf wrote:

Benni wrote: Oh, Ulf... please keep in mind the extra weight and the aerodynamic disadvantages of the mud flaps. . . No: not anymore on a women's car

Wasn't the "women's car" the 9N model, modified with a 160 hp engine and a 50 kg weight reduction?

m;