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 Post subject: Coolant liquid for battery and EV empty/leaks
PostPosted: Sun Mar 04, 2018 4:21 pm 
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Joined: Sun Mar 04, 2018 4:09 pm
Posts: 2
Hello all E tron user

Im the owner of a 2015 e-tron , 54000km on it. Overall I was happy with it until past week :
--> red alarm requiring engine stop, with low level coolant liquid.

It the small coolant reservoir, and yes it's almost empty...
I had to send the car to Audi, and they told me they cannot just "refill" it, they need to perform an entire check as its not normal to have the empty reservoir ( probable leak and dangerous as its used to cool down the battery or electric engine module..)

Of course my car is not longer under warranty...Still not have the final diagnostic.
Did this happened to any of you?..

Thanks
reservoir : https://ibb.co/gBDjNn


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 Post subject: Re: Coolant liquid for battery and EV empty/leaks
PostPosted: Mon Mar 05, 2018 6:11 am 
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Joined: Mon Mar 14, 2016 11:31 am
Posts: 167
Hi XAVFR
I have a '16 model with over 52,000 km. The issue you've experienced hasn't happened to me.
Definitely will be keeping an eye out though. I have my next service appointment within 1,000 km (probably 3 to 4 weeks) and I'll have them check.
I thought the warranty was 3 yr/60,000 km or 4 yr/80,000 depending on location?
It's 4 yr/80 here in Canada.


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 Post subject: Re: Coolant liquid for battery and EV empty/leaks
PostPosted: Tue Mar 06, 2018 7:54 am 
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Joined: Sun Mar 04, 2018 4:09 pm
Posts: 2
Thanks for your feed back
I got the garage on the phone, and they told me there was a leak on some coolant hose, "might be caused by some rats or rodent...:s"
The bill will be around 500euros for this "small" joke.

Adding this to a creaking,noisy front suspension on each speed bump... really not happy with the quality on such a "young" car
Warranty in FR in 2yr...


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 Post subject: Re: Coolant liquid for battery and EV empty/leaks
PostPosted: Tue Mar 06, 2018 11:18 am 
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Joined: Mon Mar 14, 2016 11:31 am
Posts: 167
I'm sorry to hear that. There has been cases where rodents "snuggle" inside the engine bay of cars and chew at parts/wiring.
The creaking noise is odd. I'm sure the suspension parts should last much longer than 54,000 km. I don't know what the conditions of the roads are in France (really hoping I'll be able to visit there one day) but here in the Toronto area, it can be pretty ugly. Potholes everywhere, especially now in the latter part of winter.
I hope you get the issues resolved.


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 Post subject: Re: Coolant liquid for battery and EV empty/leaks
PostPosted: Tue Apr 17, 2018 6:49 pm 
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Joined: Mon Jan 02, 2017 10:34 am
Posts: 7
I just had this issue with a 1yr old etron. Car is in the shop. Interested in the outcome you had and if it has happened again.


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 Post subject: Re: Coolant liquid for battery and EV empty/leaks
PostPosted: Mon Jun 04, 2018 1:09 pm 
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Joined: Sat Oct 01, 2016 8:13 pm
Posts: 10
Location: Los Angeles, California, USA
I have a 2016 A3 e-tron with 18650mi (30,000km) and this actually happened to me as well. I was on my way from Los Angeles to Oregon, had driven about 652miles (1049km) and the red light popped up. I was in the middle of nowhere around midnight so I really had no help I could run to. What's worst was that I was completely by myself. So what I did was I pulled into the nearest rest area off the highway and pour filtered drinking water into the little reservoir. This occurred last October, which was 7 months ago. I know this might not be the correct way to deal with this but I did what I had to do to get myself back on the road. I figure if it continues to leak, then I would take it to a dealership the next business day. The light never came back on again since then. What I think had happened was maybe because I had driven the car for a prolong period of time that maybe it over boiled the system. Not sure if that was the case but 7 months later the car is still fine.


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 Post subject: Re: Coolant liquid for battery and EV empty/leaks
PostPosted: Sat Feb 15, 2020 10:52 pm 
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Joined: Sat Feb 15, 2020 10:48 pm
Posts: 2
Hi guys.
I had my AC condenser replaced, and the mechanic told me that some battery coolant leaked out in the process, and that I’ll need to top it up. Having a heck of a time looking up what kind of coolant to buy. Any ideas out there?


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 Post subject: Re: Coolant liquid for battery and EV empty/leaks
PostPosted: Thu Feb 20, 2020 7:43 am 
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Joined: Sat Feb 15, 2020 10:48 pm
Posts: 2
Quick update on refilling the coolant:
The A3 E-Tron takes R13 coolant. It’s pink, and super expensive from the dealer, but there’s an aftermarket brand on amazon called OEM. It’s the same stuff, but a fraction of the price. Anyway, the car takes R13 in both the engine coolant reservoir and the battery coolant reservoir. Now, the battery coolant reservoir has a seal on it because it is supposed to be serviced by the dealership only, and it will void your warranty if you open it. The reason is that the electric motor sits directly underneath it, and if you happen to spill any coolant, you might short the motor and possibly start a fire. Be extremely careful if you decide to do this. I recommend using a large funnel or transfer the coolant to a jug with a precise pour. That being said, both reservoirs have a min/max line, so it’s pretty straight forward. There’s no air purging process either, you simply fill to the max line, leave the caps off, and let the car run for a bit. It’ll circulate the coolant and the level will begin to drop as the air comes out. Just keep topping it off. After 10 minutes or so you put the caps on, close the hood, put the car in “battery hold” mode and take the car for a spin around the block, not too far, just enough to get the engine running. Pop open the hood again and check your levels, top off as necessary. Obviously, this should be done by the dealer, especially if you’re still under warranty, but just wanted to do a write up for any gear-head DIYers out there.


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 Post subject: Re: Coolant liquid for battery and EV empty/leaks
PostPosted: Thu Aug 06, 2020 8:59 pm 
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Joined: Fri Mar 23, 2018 9:33 pm
Posts: 13
I'd still check with your local dealer (VW) to see what kind of price they have on the coolant.
We don't have an Audi dealer where I live (closest is ~100km away), but last time I bought some coolant at VW (we own a couple VWs as well), I got 4L of undiluted G13 for $22CAD. The OEM-brand stuff I see at Canadian Tire here is diluted 50% already, and is around $19 for 4L.


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 Post subject: Re: Coolant liquid for battery and EV empty/leaks
PostPosted: Tue Nov 02, 2021 12:06 pm 
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Joined: Sat Mar 19, 2016 8:30 am
Posts: 90
I’ve had my check coolant alarm light going off intermittently for a little bit now. I bought some oem fluid from crappy tire and topped up the engine coolant to no avail. Then I found this post and realized it was the electric coolant reservoir that was low. Debating now doing it myself. My warranty is out but the battery warranty is still good so I’m concerned it would impact that..


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