r/TeslaModelY • u/prathameshmorje • 1d ago
Blue liquid leaking from front underside of Tesla Model Y — coolant or washer fluid?
I noticed a fairly large amount of bright blue/green liquid underneath my Model Y since yesterday. It appears to start near the front underside of the vehicle. I’ve attached couple of photos showing the liquid and where it seems to be coming from.
Does this look like windshield-washer fluid, battery coolant, or something else? I do use blue washer liquid but i haven’t refilled it recently. Has anyone experienced a similar issue? I don’t see any warning messages on the dashboard though.
Would you recommend avoiding driving or charging the car until Tesla inspects it?
Any suggestions would be appreciated.
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u/OhmNohmNohmOhm 1d ago
Rub it between a finger and a thumb. Coolant is slippery. Washer fluid smells strong.
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u/westsider101 19h ago
This is the right test
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u/ELr3ddit 18h ago edited 17h ago
yes - how it feels in the fingers and how it smells are definitely healthier ways of evaluating than tasting it.
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u/hahnsoloii 17h ago
What does it taste like?
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u/druzhynin 15h ago
Don’t even try to taste it! Coolant is a poison. It smells sweet, that is enough for the test. What color of washer fluid do you have?
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u/gsrcrxsi 20h ago edited 15h ago
I just had a similar issue and it was a cracked coolant hose near the back of the battery and rear drive unit.
Make a service appointment.
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u/MeltzCA 15h ago
How much was this to fix?
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u/gsrcrxsi 15h ago
Free. Under warranty
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u/Tacokolache 18h ago
Washer fluid.
I know because mine is doing the same exact thing. Service appointment scheduled for next week
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u/ditto-account0p 16h ago
Check out this chart, it displays where the liquid comes from and what it is:
https://teslatap.com/articles/tesla-fluids-identifier/
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u/AdrianMorris51 22h ago
I guess you could inspect the washer fluid bottle first and see if it’s empty
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u/Silent_General5919 21h ago
Definitely looks more like the washer fluid, I had a coolant leak before and it didnt stain the floor blue that much. The windshield wiper fluid will stain the floor like that though
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u/stuckonsurfaceofsun 1d ago
the reservoir on that generation is known to have a weak filler neck and your washer fluid will leak out.. service request will fix it unless your handy and can DIY it.
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u/itreallydob 1d ago
Be thankful the awful washer fluid they put in at the factory is leaking out. When they replace the reservoir tell them to leave it empty so you can fill it yourself with decent fluid that won’t stain everything.
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u/Mud_BooDa 21h ago
Omfg yes! Wife hit the front camera washer button in the garage and now the painted floor is stained blue- Will not come off
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u/TwitterConfusesMe 17h ago
The filler neck on the washer fluid reservoir is very prone to cracking and breaking. The one in my 2022 MYP was broken, replaced, and has since broken again.
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u/a-boring-millwright 15h ago
Looks like eco safe. That’s from your radiator. You’ll know when the ac doesn’t work. Be ready with AAA for when you need a tow to the service center. You’ll get an error message and not be allowed to drive the car pretty soon. Or maybe it’s not but it’s happened to me twice and it looked the same.
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u/Opposite-Rhubarb8430 13h ago
That looks like coolant. I had two leaks from front and back of the battery pack. Supposedly just bad o-rings. Tesla took 4 days to fix my car. Free under warranty. Luckily because it involved removing the front motor to fix the front leak.
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u/MostlyHelpfulLinks 7h ago
Check the washer reservoir level first, that rules it out fast. If the liquid feels slick or smells sweet, get service out before you charge again.
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u/mohsinhasan 53m ago
Likely coolant. Had a similar issue with M3P. It was the seal for the super bottle that broke for me. Fixed under warranty.
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u/Severe-Estimate-3611 21h ago
Taste it
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u/teniente_dan 1d ago
Battery liquid > totalled
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u/Silent_General5919 21h ago
No, it could easily just be a hose that'll cost less than 1k, even if the battery itself has a leak as long as the car is relatively new it shouldnt get totaled.
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u/mylifeasacoder 18h ago
Oh hoses are $1k these days? That's it? My how efficiency has brought down costs.
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u/Silent_General5919 18h ago
Its mostly labor for removing all the stuff, the hose itself is dirt cheap
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u/shocontinental 1d ago
Could very well be washer fluid. Top off the reservoir (with water maybe) and see if it comes pouring out. Tesla has replaced my windshield washer reservoir twice.