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#4781185 - 06/08/18 11:12 AM Rain-X washer fluid ruins low fluid sensor?
mrdctaylor Offline


Registered: 06/05/03
Posts: 619
Loc: McGregor TX
Guys,

I've been using the orange Rain-X washer fluid in my vehicles for a year or so now. I just happened to come across a post somewhere about this stuff messing up some guy's low washer fluid sensor. Has anyone here ever had this happen? So far mine seem fine, but I'm thinking about ditching the couple of gallons I have on the shelf and going back to cheap-o fluid. Thoughts?
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#4781199 - 06/08/18 11:22 AM Re: Rain-X washer fluid ruins low fluid sensor? [Re: mrdctaylor]
mclasser Offline


Registered: 04/13/13
Posts: 2290
Loc: The Northeast
I heard about Rain-X not playing nice with some Audi fluid sensors. I've been using it on my cars for a few years now without issue.
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#4781201 - 06/08/18 11:23 AM Re: Rain-X washer fluid ruins low fluid sensor? [Re: mrdctaylor]
mrdctaylor Offline


Registered: 06/05/03
Posts: 619
Loc: McGregor TX
The comment I read was from a guy with a VW. Maybe it is a German car thing. :-)
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02 Tacoma 3.4L, 215K, Magnatec 10W30
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#4781218 - 06/08/18 11:39 AM Re: Rain-X washer fluid ruins low fluid sensor? [Re: mrdctaylor]
mrdctaylor Offline


Registered: 06/05/03
Posts: 619
Loc: McGregor TX
I found this:

https://www.classaction.org/rain-x-lawsuit

"The maker of Rain-X has been hit with a class action lawsuit alleging it deceived consumers by indicating its windshield washer fluid was suitable for use in all mass-produced vehicles. Consumers have complained that their low-fluid indicator lights wouldn’t shut off after filling their cars with Rain-X – and the lawsuit says this problem stems from the fact that the product isn’t compatible with certain vehicles. According to the suit, Rain-X shouldn’t be used in cars made by:

Volkswagen
Audi
Mini Cooper
BMW
Mercedes Benz
Chrysler

In some cases, consumers have complained that the Rain-X products actually corroded or otherwise damaged their washer fluid sensors – a problem that cost them hundreds of dollars to fix. Unfortunately, the makers of Rain-X are reportedly refusing to cover these costs."
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#4781222 - 06/08/18 11:42 AM Re: Rain-X washer fluid ruins low fluid sensor? [Re: mrdctaylor]
jonnied1 Offline


Registered: 10/16/16
Posts: 128
Loc: WV
Messed up the sensor on my 2008 Ram truck. It will say low washer fluid with a full tank anytime it is below 45 deg. I haven't used Rain-X for several years now and the sensor is still messed up!

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#4781226 - 06/08/18 11:46 AM Re: Rain-X washer fluid ruins low fluid sensor? [Re: mrdctaylor]
mrdctaylor Offline


Registered: 06/05/03
Posts: 619
Loc: McGregor TX
It looks like the German cars listed on that website plus Chrysler (and I'm assuming Ram trucks) use a type of sensor that can get fouled by this stuff. It is an electrode type sensor. I'm wondering if cars like my Toyotas use a float type sensor. I found a thread on a 4Runner forum where guys talked about using this stuff for years with no issues.
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#4781236 - 06/08/18 12:00 PM Re: Rain-X washer fluid ruins low fluid sensor? [Re: mrdctaylor]
Wolf359 Offline


Registered: 04/27/12
Posts: 5044
Loc: MA
Yep, got the same problem with my Mercedes. It's a $10 part, but it's the labor that's a pain. Never used Rain-X, but I guess the previous owner may have. There was some video of someone cleaning off the sensor, I guess it gets coated in gunk and needs a cleaning.

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#4781237 - 06/08/18 12:01 PM Re: Rain-X washer fluid ruins low fluid sensor? [Re: mrdctaylor]
opus1 Offline


Registered: 12/13/04
Posts: 2519
Loc: Chicago Area
I've used it off and on in both the Sonata and Dakota and haven't had any problems...maybe because I rotated with other brands/types?

Something to keep in mind, though; I may not buy any more just to be safe. Thanks.
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#4781273 - 06/08/18 12:47 PM Re: Rain-X washer fluid ruins low fluid sensor? [Re: Wolf359]
pandus13 Offline


Registered: 08/12/11
Posts: 3345
Loc: Chicago,IL,USA
Originally Posted By: Wolf359
... There was some video of someone cleaning off the sensor, I guess it gets coated in gunk and needs a cleaning.

..just thinking out loud.

Do you think it would be cleaned by dumping a quart of rubbing alcohol or vinegar, then topping off with fluid after x hours?
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#4781287 - 06/08/18 01:04 PM Re: Rain-X washer fluid ruins low fluid sensor? [Re: pandus13]
Hootbro Offline


Registered: 08/25/03
Posts: 2450
Loc: DELAWARE
The stuff messed up the level sensor in my old Ram truck and also my wifes FJ cruiser in that it plugged up the nozzle. No more for me.
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#4781317 - 06/08/18 01:46 PM Re: Rain-X washer fluid ruins low fluid sensor? [Re: pandus13]
Wolf359 Offline


Registered: 04/27/12
Posts: 5044
Loc: MA
Originally Posted By: pandus13
Originally Posted By: Wolf359
... There was some video of someone cleaning off the sensor, I guess it gets coated in gunk and needs a cleaning.

..just thinking out loud.

Do you think it would be cleaned by dumping a quart of rubbing alcohol or vinegar, then topping off with fluid after x hours?


Not according to the video I saw. It looked like it was really caked on.

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#4781382 - 06/08/18 02:52 PM Re: Rain-X washer fluid ruins low fluid sensor? [Re: mrdctaylor]
Reddy45 Offline


Registered: 08/15/08
Posts: 3088
Loc: USA
Is the orange stuff used because it cleans better or something? I run the blue stuff since it's cheap but using your wipers to clean your windshield is really ineffective. Easier to pull into a gas station and use the squeegee dunked in rain water. More scrubbing action.

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#4781388 - 06/08/18 03:02 PM Re: Rain-X washer fluid ruins low fluid sensor? [Re: mrdctaylor]
mrdctaylor Offline


Registered: 06/05/03
Posts: 619
Loc: McGregor TX
I use the orange stuff because it has Rain-X coating that helps water bead up on your windshield. I like the way it works, but I don't want any unnecessary repairs in my future.
_________________________
02 Tacoma 3.4L, 215K, Magnatec 10W30
02 Trailblazer 4.2L, 179K, Edge HM 10W40
12 Highlander 3.5L, 88K, M1 EP 0W20
17 Escape 2.0L, 31K, Hav ProDS 5W30

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#4781391 - 06/08/18 03:05 PM Re: Rain-X washer fluid ruins low fluid sensor? [Re: jonnied1]
irv Offline


Registered: 10/08/06
Posts: 1309
Loc: Oshawa, Ont. Canada
Originally Posted By: jonnied1
Messed up the sensor on my 2008 Ram truck. It will say low washer fluid with a full tank anytime it is below 45 deg. I haven't used Rain-X for several years now and the sensor is still messed up!


I'm glad I read this as I have a 13 Ram. I can't say with a 100% certainty if it has ever seen Rain X but if it did, it was only a top up amount as I know I had some on hand within the last couple years.

I mainly use Costco brand windshield washer fluid at the -45 ratio. I see no need, for the cost of it, to be switching it out to a summer brand every spring.

Thanks for the info. cheers
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2013 Ram Hemi Bighorn QC 4x4
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#4781528 - 06/08/18 05:40 PM Re: Rain-X washer fluid ruins low fluid sensor? [Re: mrdctaylor]
gregk24 Offline


Registered: 04/13/13
Posts: 5689
Loc: FL, USA
I would have never thought chemicals in washer fluid would damage sensors. Good to know! Won't be using this brand.
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54,xxx miles
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2014 VW Jetta SE 1.8T ea888
40,xxx miles
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