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Discussion Starter #1 (Edited)
Hey all
I've only recently found this forum, and i've noticed that the a3 etron subforum is quite active. I have some problems with my car that i just picked 2 weeks ago and wanted to see if someone here has had similar problems.

Here is the tl;dr version of what i'm about to say further below. It will be somewhat of a rant with some infos, if anyone wants to read it. If not, here the short version:
Car stops/interrupts the charging randomly. I couldn't recognize any patterns. Sometimes after a few minutes, sometimes after 1 hour.
As soon as i give any kind of "input" to the car, the charging starts again. Meaning that eventually the battery will charge to 100%.
Input can be anything. locking/unlocking the car. Plugging charger out and in again etc.
This was reproducable with the charger that came with the car, aswell with public charging stations.


Rant Version with some more infos:
The first week after i picked the car it worked fine. However, last week the charging started to act weird. The charging would interrupt randomly, without any pattern. It wouldn't interrupt always at "20% charge" or anything similar. Sometimes it stops after 5 minutes of charging, sometimes after 1 hour or more. It's randomly.
The car is at the dealer right now, but i'm amazed how incompetently they are handling the whole situation.I brought the car in on monday. I was in contact with them every day since. Up to yesterday evening they kept telling me that they're awaiting answers from Audi, because they are not able to find the problem (how? It sounds to me all they do is read the error-logs. No errors? Tough luck kid). Personally i think it's the internal "charger", the one that can only charge up to 3.7kW. I even told them on the phone on tuesday when they told me they couldn't find what causes the problem. But whatever, i'm not a technician/mechanic or anything similar. Just a guess.
Anyway, i called up today and they tell me this:
"Audi told us to reset the error-memory of the internal charger of the car, and simulate/tell the car we have installed a new unit"
I ask them what will be done if this works and it charges again.
"Nothing, car will be returned with literally nothing done"
Amazing guys, 5 days at the dealership to read the error-log and clear it out. Seriously, what the ****.
I then ask them what happens if this doesn't work and the car still doesn't charge
"We will be back at the starting point and continue to write with Audi to find a solution"
Amazing. Basically, car has been in 4 days so far. They have literally done nothing except read the error-memory and confirm that the car indeed has a problem and doesn't charge. Doesn't take a technician to do that, does it? Just plug in a vcds or obdeleven or anything like that and do it myself.
Also, this isn't just a guess about them having done nothing. I pressured the guy on the phone a bit and he indirectly told me that they haven't worked on the car at all, on a "mechanical way". So basically to me this indirectly means they have only read the errors.

That's it for this problem. I've got other problems that might be related to this, but i'll open a separate thread to keep it tidy.

Thanks for the help.
 

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Hi "something" (I bet you hate your parents :)),

I had some weird issues with my A3 e-tron a couple of years ago and eventually Audi found a problem and replaced a/the "charging module" under warranty that otherwise would have cost £3000 or more. You can find more if you search for my posts with keyword "charging module").

With respect to the time it takes to get a car seen to at the dealers, I've always found it takes weeks rather than days. Only "e-tron specialists" are allowed to work on them and they were (I guess still are) in short supply. You will also find that almost all the problems are tricky to sort out and almost always require conversations with Audi in Germany - there's rarely a simple solution in the logs. I guess with the new "e-tron" rolling off the showroom floor the availability of e-tron specialists for sorting out problems with the obsolete "e-tron" may become more scarce...

Persevere, I hope you get it sorted and enjoy driving it!

Kind regards, Stefan
 

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Discussion Starter #3 (Edited)
Hi Stefan

Thank you for the quick reply.

With a name like something, i can't but love my parents.:p

I have read your post, assuming it's the one where you had problems with the regenerative braking system.
The charging module sounds like the "internal charger" that i'm referring to in my post. Imo the most likely problem lies with that unit, but who knows.
I'm fully aware that finding problems like these and it's cause is hard, especially so in electric vehicles. And even more so when there are no errors in the system. That being said, i still think it's an absolute joke that no effort whatsoever was made (my assumption, fairly sure it's correct) to actually find the fault. Again, to me it sounded like they only read the error-log, couldn't find anything, and directly started discussing the problem with Audi. Now, don't get me wrong. I'm not saying that's a bad thing. If Audi is aware of the issue then this might lead to a solution faster than trying to find the problem. But considering the reply Audi gave, they don't know about the issue. That's where i'd expect them to start trying on their own to find a solution. Anyway, i'll have a call later with them again. Apparently they've done the "reset" of this unit and are trying to charge it now. I should know more in a few hours.
Seems to me that the e-tron specialists (they told me the same thing. Only a few people are authorised to work on them) aren't any specialists at all.

I will keep you guys updated as to what will be done. Seeing as holiday-time is around, i'm expecting to not see my car for a few weeks actually.
Might go and pickup the car tomorrow and bring it to a different dealership.

Edit: I actually forgot to mention something in this thread. I was too focused on the rant i guess.
As soon as i give any kind of "input" to the car, the charging starts again. Meaning that eventually the battery will charge to 100%.
Input can be anything. locking/unlocking the car. Plugging charger out and in again etc.

Regards

Something
 

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Discussion Starter #4
Update:
Called the dealer. They said they've done the reset and charged the car succesfully once.
They went for a drive and are charging it again now. If it works again i can go an pick it up.
To me the whole thing sounds like a bypass rather than a fix. I'm assuming the problem will re-emerge sooner or later.
They told me there were no errors in the memory, so how deleting non-existent errors will help is a mystery to me.
Also, i'm not sure what "simulating in the car that the charging module has been replaced" means.
How do you simulate that? By changing the serial number maybe?
I've asked them to put me through with the dude that repaired it.
"We are not allowed to do that"
I call bullshit. I will avoid this dealership like the pest next time.
 

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Discussion Starter #5
Update 2:
Picked the car yesterday. Got home and started charging. As expected, it didn't work. After some time the charge was interrupted.
Preheating doesn't work either. I'm not sure how and what tested, but they told me both work, but neither does, really.
I asked them if they actually used the charger (brick) i put in the car, the audi original one i use at home. They said they did and it worked.
Long story short, the only thing that is working is the one thing i did myself. Verifying myself as main user / owner of the car to have access to all the functionality via the app.

I will keep you guys updated.I will bring the car to a different Dealership asap. I was at the phone with one that seemed to know what they were talking about.
 

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Discussion Starter #6
@srzientek

A question since you have an a3 etron.
Do you have the app installed to turn on climate from remote etc.?
One thing that i noticed is after some time the car has been sitting in the parking, when i try to refresh the data of the app and or control the a/c. The car takes around 3 or so minutes to update. It feels like the car is hibernating and needs to reinitalize all the systems. This would possibly give me and or the mechainic something to look into regarding the charging problem.
Like i said, after the charging is interrupted the car needs some kind of input to start charging again. Now that i've set up the app, i've noticed that even retrieving the data with the app is enough to get the charging going again. No physical contact needed. This sounds like a good hint to me, but who knows.
I'd really appreciate if you could test this for me assuming you have the app installed.
Also while i'm at it, another question:
How does the a/c generally work in your car?
For example, when it's quite cold and you turn on the a/c to auto, how strong do the fans blow air? As you might know i also have problems with the a/c, and i've noticed (aside from the non-working preheat), when i turn on the auto a/c, the fans always keep to an absolute minimum. Even if it's really cold (around 2 degree celsius here), and i turn on the a/c to 23 degree celsius, it just doesn't start blowing like i think it should. I was expecting that when the temperature difference is more than just one or so degree, the fans would start to spin up and blow alot of air to heat and or cool the car fast(er).


Thanks
 

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Hi Something,

I do use the app to set the car to warm up whilst its plugged it to save the charge for driving. I mostly set it going via the timer but occasionally use the immediate mode. If you set the timer I think you need to set it at least 30 minutes into the future. NB: I've only recently started using the app having succumbed to buying an iPad - I used to use the myAudi website but that's now almost entirely dysfunctional - so the app may not have the same 30 minute restriction.

I've been having some fun and games with the app and its reflection of the car's state of charge etc. I've noticed that the more recent updates to the app have included a refresh now button (on the rightmost edge of the line titled "Vehicle status") - so perhaps Audi are catching on that their systems are not very good at communication amongst themselves. This refresh seems to work but I'm not convinced it works all the time.

I've just tried the refresh and it took about 2 minutes to state that the last contact was "Just now". My experience is that it generally takes about 2 or 3 minutes to receive confirmation that a change to the "Auxiliary air conditioning" has been registered - that is when I don't get a communication error!

I'll have to go and have a play with the climate control to give you a more considered answer to your question about how strongly it blows. Off the cuff, though, I think the middle vents don't blow very much at all and the system never seems to be notably fierce.

NB: On cold occasions a few years ago whilst I've been sitting in the car when it’s been plugged into a public charging point, I've tried to turn on the Auxiliary air conditioning from within the car (naturally without starting the car as it's plugged in) and the climate control has started blowing but not provided any heat. I think I've mentioned this to my dealer but I don't think it got sorted - I think I got told I didn't have the "Auxiliary air conditioning" on my vehicle or somesuch! See my post on https://www.speakev.com/threads/heating-takes-time-before-turning-on-in-ev-mode.144381/#post-2726952 and perhaps the rest of that conversation is relevant to you too.

Kind regards, Stefan
 

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Update:

A couple of times recently I've been out without pre-heating the car when the external air temperature has been about 40F (I like to fool myself that Fahrenheit is warmer than Centigrade!). Driving only in EV mode with the Climate Control on Auto (68F), the fans are very slight to start with (2 bars out of 10 - if you turn the middle knob gently you will see the number of bars lit up). After about 10-15 minutes (and hitting Auto again so that the fan can set its own speed) the car starts to produce warm air and the fan increases to 3 or more bars. Even at these speeds it hardly blows very much though through the side window vents. Pressing the Demist button does noticeably increase the fan speed though.

NB:I think (as on my trusty old A4) the Climate Control does not blow very much until the system is capable of delivering some warmth, after which it increases the air flow, so I think this is normal Audi behaviour (and for once reasonably sensible).

Also, in EV mode, it probably takes a little longer for the heating system to heat up than if the system was being or also being heated from the petrol engine - I guess that they both use the same system like a water tank that is either heated by heat transfer from the petrol cooling system or via an immersion heater - so I can understand you thinking it's all a bit feeble when you start off.

Kind regards, Stefan
 

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Hi Stefan

Thank you for all the information you have provided.
I had my car in the dealership in the meantime to sort out the problem with the charging. As expected, i was told they couldn't find any errors in the log and don't know what the problem is. But they confirmed that they could replicate the problem. They apparently have "reset" the internal charger, and it worked for them. I took the car back home, and it didn't work, had the same problems as before. I have now made a second appointment to have this issue fixed with a different dealership that seemed a bit more knowledgable. Funnily enough, at the end of last week, the problem vanished by itself and the car started charging fully without interrupting. This is problematic tho, as now the second dealership won't be able to reproduce this problem. I might need to cancel the appointment until it starts again. I'm considering just selling the car at this point. So far it was one hell of a headache to be honest.
Charging problems
A/C problems
Audio-Connect problems

Just a joke tbh.
 

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Discussion Starter #10
Update:
Plugged the car in to charge on friday evening. Confirmed it was charging. Green-light in the bumper.
Saturday around 2pm. Car is not charging (no light in bumper). Get into car, only have 12km range.
Brought in the car to the dealership, as i had still the appointment for this week anyway.
Was in touch with them yesterday. They tried to charge the car twice and it worked without interruptions both the times. They will try today and maybe tomorrow, but if they can't reproduce the problem i guess i'll just tell them to return the car and i'll bring it in once it starts again. This is going to be a hard one to find i guess. I'm already looking forward to the countless trips to the dealership.
Welp, on the bright side, my audi-connect problems got solved by calling the audi-connect hotline (and surprisingly fast at that. Called thursday, got solved by monday).
I will keep you guys updated in case the dealership ends up finding something.
 

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Discussion Starter #11
Update:

They actually replaced the ECU for the Infotainment System, which is indirectly connected to the charging because of the timers you can set etc.
However, they didn't replaced it because of the charging problem. They were not able to reproduce the charging problem. They replaced it because the a/c wasn't working properly, specifically the pre-heating etc. (see my other thread about this issue).
Anyway, right now it is charging properly, but only time will tell if changing this ECU has actually fixed the problem or not.
 

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Hi,

Something: I hope from the lack of activity on the thread for 6 months that the problem has now resolved.

I just wanted to post to update you, and any others searching for this problem, that I have just received a new Audi e-Tron last week (not the A3), and right from the outset it has had exactly the same charging problem you have reported. i.e. It starts charging as normal, but after an unpredictable delay of minutes to hours it inexplicably stops charging, and only resumes when something interacts with the car, such as locking, unlocking, pressing the button on the charging port on the car, or using the app. Then it resumes for a while, only for the same problem to recur, and in total takes around 4-5 cycles of this process to reach the desired charge level.

My home charger works fine with our Tesla Model 3, and I suspect the issue is with the car itself. I have only charged at one other charge point so far, for just a couple of hours, and the problem did not occur then.

An Audi mechanic came out and could not find any fault, and has contacted the central Audi team, and apparently this problem has not previously been reported by other owners.

Next step (as it was for you), is to get it into the Audi garage to have them charge it and see if the problem occurs there. We shall see...

Best wishes,
Will
 
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