Leon PHEV - EV coolant refill

[adrianator]

Did anyone get a warning about EV coolant being low? I got it and it is indeed low. I checked it but there are no signs of leaks.

According to the manual, it should be refilled with G12evo which is the same coolant that the IC engine uses. The manual is also mentionenting in bold that i shouldn't top up the coolant and go immediately to a specialised workshop.

But now the question is...why is there a security seal on the EV coolant tank? Whatever safety reasons they think they got can be applied on the coolant used by the IC engine which is missing that seal.

I don't want to put the car on platform and send it to the service for a fluid refill, it's kinda stupid.

 

[RyanB]

Also had this warning light on and off recently with my Cupra Formentor PHEV. EV coolant is just below the minimum.

I can't see why there is a security seal and I am reluctant to take it to a dealership for a simple top up. Hoping someone could shed light on why there is a seal?

 

[adrianator]

Also had this warning light on and off recently with my Cupra Formentor PHEV. EV coolant is just below the minimum.

I can't see why there is a security seal and I am reluctant to take it to a dealership for a simple top up. Hoping someone could shed light on why there is a seal?

So I searched for an answer. That coolant goes to the batteries and if there is a leak there, the liquid will have a pretty high charge and you can die if you touch it.

But for the moment, I fixed it by removing the hose where the seal is located. After I removed it, a lot of pressured air came out and the coolant was back to normal. That's weird but it worked...for now. I'll keep monitoring it

 

[SRGTD]

Presumably if the security / tamper proof seal is removed by any one other than the Seat dealership and there’s no record on the car’s digital service record that the EV coolant has been topped up by a dealer, then it would give Seat an excuse to decline any subsequent warranty claims in relation to the EV cooling system.

I'm assuming that if a dealer does top up the EV system, then they would fit a new replacement security / tamper proof seal?

 

[C_ED_99]

Presumably if the security / tamper proof seal is removed by any one other than the Seat dealership and there’s no record on the car’s digital service record that the EV coolant has been topped up by a dealer, then it would give Seat an excuse to decline any subsequent warranty claims in relation to the EV cooling system.

I'm assuming that if a dealer does top up the EV system, then they would fit a new replacement security / tamper proof seal?

They'd probably void the warranty on the battery too if the cooling system wasn't maintaining it at the correct temperatures

 

[wgsg124]

So I searched for an answer. That coolant goes to the batteries and if there is a leak there, the liquid will have a pretty high charge and you can die if you touch it.

But for the moment, I fixed it by removing the hose where the seal is located. After I removed it, a lot of pressured air came out and the coolant was back to normal. That's weird but it worked...for now. I'll keep monitoring it

Hi, I'm facing this exact issue right now and found your post via Google.
To get rid of the pressure I also removed the hose and the pressure and the liquid came came back.

Has this problem reoccurred for you after this? And if so how did you solve it permanently?
I would appreciate it very much if you could reply back, since this is the only post I found regarding this issue.

Thank you!

 

[adrianator]

Hi, I'm facing this exact issue right now and found your post via Google.
To get rid of the pressure I also removed the hose and the pressure and the liquid came came back.

Has this problem reoccurred for you after this? And if so how did you solve it permanently?
I would appreciate it very much if you could reply back, since this is the only post I found regarding this issue.

Thank you!

Hi,

Since I made that post with the "fix", I haven't encountered this issue. Everything worked fine. No other issues with the car, battery or drop in coolant level.

And...sorry, but I don't have any other information about this. I wanted to ask the people at the service but...let's just say I avoided this subject of removing the hose until the warranty runs out.

 

[marcos]

Hello.

There is any risk of it spilling out coolant when getting the hose off? My leon has the same problem, the first time the dealer topped it up but they charge around 25€ just to fill 100ml ...