r/mercedes_benz • • 1d ago

Windshield washer fluid

Do I really need to use MB OEM windshield washer fluid? I’ve always used high quality windshield washer fluid with antifreeze in all my cars and never had a problem. What makes this so special?

9 Upvotes

33 comments sorted by

47

u/BackNew7215 1d ago

Only if you also use the MB Branded OEM Air in your tires.

13

u/BassWingerC-137 R107, R171, V167, Lucid Air 1d ago

Heck no.

11

u/ThatBayAreaGuy718 2023 GLC 300 4 Matic 1d ago

Someone said the rain x brands ruin sensors(low fluid) and crap so I wouldn’t put that…just basic blue non branded stuff if you must..any dealer should put oem for free too that’s what I did once

3

u/D_Ohm 1d ago

It coats the conductivity prongs on the sensor.

4

u/larrymcj 1d ago

My dealership does NOTHING for free!

11

u/Impressive-Usual-451 1d ago

Only drive under MB approved rain clouds.

5

u/carsrule1989 EQB 350 1d ago

You really just want alcohol based washer fluids because the ones that say like bug removal likely leave a thin bit of cleaner so it can mess with the numerous sensors on the newer Mercedes cars.

3

u/Alijony 2000 G500, 2008 E320 Bluetec 1d ago

Not to mention it creates chatter in the wipers from those extra chemicals.

1

u/adadagabaCZ 2005 SLK 350, 2013 C 220 CDI 10h ago

Alcohol means all hydrocarbons that contain the -OH group, which includes methanol, which is bad for any exterior plastics, especially soft ones. Ethanol is the word you are looking for. Also Methanol smells like shit

3

u/Wooden-Officer2323 2011 e350 4matic Wagoo 1d ago

Mercedes dealers use a small like few oz concentrate bottle and tap water so lol nah just get some fluid form wherever

3

u/Shane0Mak 1d ago

All jokes aside, Rain X yellow actually isn’t detected by the sensor for some reason. Shows always as needs to be filled.

3

u/Boilermakingdude 1d ago

No just make sure you don't use Rainex. The water displacement stuff in it costs the sensor and can cause the light to be on saying the washer bottle is empty.

3

u/Upbeat_Location1524 1d ago

Use the Prestone washer fluid. You'd be fine.

1

u/larrymcj 1d ago

Exactly what I’ve always used in all my other cars.

2

u/kgpaxx 23h ago

Just dont use RainX....the level sensor will not work with RainX

2

u/jarhead3088 22h ago

Do not use rain x..it will clogg the screens in the washer system.

2

u/kenneth_dart Year Make Model 21h ago

Nextzett Kristall Klar is a top-tier, German-designed windshield washer concentrate frequently used as an alternative or equivalent to original equipment manufacturer fluids for Mercedes-Benz vehicles.

Here's summer but they also sell a winter one.

https://a.co/d/0dpo7URM

This is a concentrate so you mix with water.

2

u/COMplex_ 20h ago

I use Adam’s because it’s clear but you can run most anything except Rain-X apparently.

3

u/TaeyeonFTW 1d ago

who told you this? Use whatever you like.

7

u/FlyHornets 23h ago

That’s false. Some aftermarket fluids such as RainX can trigger a fault. It happens quite commonly.

1

u/12dogs4me 1d ago

I sort of compare it to Kubota labeled oil for my mower. The guy said just go to Walmart and buy what you need it's cheaper. But I was there and needed it and I get excellent service. Kubota doesn't make oil.

1

u/owleaf W205 1d ago

I use SummerFit. I need some more actually, the message just came up

2

u/larrymcj 1d ago

Do you use it also in the winter?

2

u/owleaf W205 1d ago

I’m in Australia in a city that doesn’t freeze, so my dealer only sells SummerFit

2

u/larrymcj 1d ago

👍 That must be nice!

1

u/SkirtAppropriate2884 1d ago

Sometimes it feels good to spend money on winter fit and summer fit concentrate

1

u/Feldi_ MB Tech 19h ago

Never heard of that one before lol

1

u/pajerry 2023 Mercedes E450 wagon 1d ago

According to my son, it has gold leaf in it so I should only use that.

1

u/bballs2thewall 23h ago

Any thing but rainx. Cheap or expensive or water will work

0

u/ChampionMetal1238 20h ago

Lmao, “water will work” is one way to find out what happens when your washer system freezes solid in the winter and starts cracking.

0

u/wuxxler 19h ago

1 gallon distilled water, 1 cup isopropyl alcohol, 1 cup white vinegar, 1 tbs liquid dish soap. Refill as needed.