Welcome to Tesla Motors Club
Discuss Tesla's Model S, Model 3, Model X, Model Y, Cybertruck, Roadster and More.
Register

Windshield washer fluid running over side window

Tom Russ

Member
Jul 9, 2019
12
16
Netherlands
Hi,

every time I spray washer fluid over the windscreen, the wipers move it to the left side of the windshield. So far so good. But depending on the speed you’re driving it runs over the side window (driver side). If the side window is closed, the window will be all dirty and smudgy (if that is really the correct description). As specially in the darker winter period this can lead to bad visibility in the side mirror.
BUT in summer, when the window is open........ well you know what will happen
Is it just me, or are more people annoyed by this?
 

Candleflame

Active Member
Mar 9, 2015
2,791
1,289
QLD, Australia
Hi,

every time I spray washer fluid over the windscreen, the wipers move it to the left side of the windshield. So far so good. But depending on the speed you’re driving it runs over the side window (driver side). If the side window is closed, the window will be all dirty and smudgy (if that is really the correct description). As specially in the darker winter period this can lead to bad visibility in the side mirror.
BUT in summer, when the window is open........ well you know what will happen
Is it just me, or are more people annoyed by this?

yeah, standard on the 3 and really annoying. When you drive at speed a lot of it will run over the roof and then sort of run down the rear windshield and stop there as its shielded from the wind and then get baked in leading to waterspots.

I would put rainx or equivalent on the windshield, only use distilled water in the washer reservour and keep using the washer to a minimum.
 

JulienW

Active Member
Jul 7, 2018
2,565
2,794
Atlanta
yeah, standard on the 3 and really annoying....
...and just about every car on the road. It is just physics: the water wiped must go somewhere. This is one advantage sequential wipers have is the volume is reduce by almost ½ since it is distributed between the driver's and passenger's sides and with pivot wipers you tend to get the passenger's volume added to the driver's.
 
  • Disagree
Reactions: BZM3

CDN-Build

Member
Aug 15, 2018
65
40
Cambridge
;););)

yes, can’t defy physics ;)
But my VW and Audi have a kind of gutter which redirects the water upwards to the roof. As I’m an engineer, I already thought about 3D printing such a device..... but first need think a bit about this.

It lacks those gutter systems for aerodynamics. If you or Tesla adds them, the efficiency and appearance of the car declines.

(Water on the side window)
Or
(Less efficient, and a hit to the appearance.)

??
 

Tom Russ

Member
Jul 9, 2019
12
16
Netherlands
It will definitely effect the aerodynamics, but will that be noticeable? Besides most of the other cars on the market don’t have this issue, so i’m convinced there is a working compromise between function, aerodynamics and ecstatics.
But let me experiment a little bit with this, I’ll keep you informed ;)
 

CDN-Build

Member
Aug 15, 2018
65
40
Cambridge
It will definitely effect the aerodynamics, but will that be noticeable? Besides most of the other cars on the market don’t have this issue, so i’m convinced there is a working compromise between function, aerodynamics and ecstatics.
But let me experiment a little bit with this, I’ll keep you informed ;)

Keep in mind, most other cars on the market, don’t need to have optimum efficiency, so they don’t consider that in the design as much.
There is a happy medium, but you will lose efficiency/range.
 

KenC

Active Member
Sep 4, 2018
3,559
3,231
Maine
You can solve the annoying washer fluid on the driver side window by accelerating really really fast as you wipe. Then the fluid goes over the top!
You think I'm joking, I'm not! I just went out in the heavy rain to test. As the wiper reaches the end of its stroke, give the accelerator pedal a hard, but brief, push. That'll send the fluid up and over. If you're careful, it'll add only 2mph of speed, per push. Enjoy.
 

hellocar

Member
Jan 26, 2020
167
100
New Jersey
Yeah I've also noticed this, minor annoyance but no big deal. I like the aero shape of the car. Some of my previous cars have done the same on one or both sides. I'm gonna try the accelerator trick though!
 

Candleflame

Active Member
Mar 9, 2015
2,791
1,289
QLD, Australia
and choose where you live very carefully based on climate and probability of below freezing temperatures...

ehm yeah obviously depends where you live. If you live somewhere cold you have to add some antifreeze - washer concentrate has already got this in if you live somewhere cold.
 
Last edited:

About Us

Formed in 2006, Tesla Motors Club (TMC) was the first independent online Tesla community. Today it remains the largest and most dynamic community of Tesla enthusiasts. Learn more.

Do you value your experience at TMC? Consider becoming a Supporting Member of Tesla Motors Club. As a thank you for your contribution, you'll get nearly no ads in the Community and Groups sections. Additional perks are available depending on the level of contribution. Please visit the Account Upgrades page for more details.


SUPPORT TMC
Top