[Jewels]

12v battery recall for software update - just had a letter from Mazda and had to book car in for software update ( service campaign) due to the ECU which may not be going into sleep mode after the ignition is turned off, they say in which case an electrical current may continue to flow causing the 12v battery to discharge, so requires a software update.
Only posting this as I think I have seen a post saying that their 12v battery was going flat, and think bc another said they thought their phone cable left plugged in had drained the 12v, which did seem a bit strange, maybe this is the real reason.

 

[Ciprotim]

Yes I’ve got mine today and I think ive read somewhere on this forum about battery charging issues

 

[ljorg]

Mine died completely - even while plugged into the charger overnight. Bit of a surprise that an EV can do absolutely nothing with a dead 12V. I couldn't even unplug the charging wire.

Road services came and said "If we need to move the car, I need to call for another truck. You can't tow EVs".

Didn't know about that, but apparently Neutral gear setting only works with power on the motor. When everything is dead, you have to lift the front wheels up to move the car. If you do tow it, you might break the electric motor.

Got it into the shop, they spent two days "cooking the battery", whatever that means. And called me in a few days later to tell me a new firmware has been released that fixes this problem. Nice.

All that aside, I absolutely love the MX-30, quirks and all.

 

[Jewels]

Mine died completely - even while plugged into the charger overnight. Bit of a surprise that an EV can do absolutely nothing with a dead 12V. I couldn't even unplug the charging wire.

Road services came and said "If we need to move the car, I need to call for another truck. You can't tow EVs".

Didn't know about that, but apparently Neutral gear setting only works with power on the motor. When everything is dead, you have to lift the front wheels up to move the car. If you do tow it, you might break the electric motor.

Got it into the shop, they spent two days "cooking the battery", whatever that means. And called me in a few days later to tell me a new firmware has been released that fixes this problem. Nice.

All that aside, I absolutely love the MX-30, quirks and all.

Thanks for your reply, it a bit of a worry until we get the fix done on Thursday this week. We did not buy this car believe it would all be plain sailing as EV’s are newish and on a Learning curve but hopefully we won’t have too many issues to deal with. Glad your cars fixed.
We do love the car and at the moment free to run as our town in the U.K. has free to charge EV points, 6 in total. We don’t do many miles per year, and only had the car 3 weeks, but have done about 300 miles and not cost us anything. We are just getting the hang of the regenerative brakes and did a 16 mile journey on country roads and when we got home it had only dropped 4 miles of range.
glad you like the car.
Jewels

 

[Thebriggie]

Basically the 12v battery can drain if you leave things plugged in and working, leaving lights on etc. or simple things like not locking the doors. Pretty much like an ICE car in certain aspects. The fix is to monitor the 12v battery and stop providing power when a certain point is reached to ensure the car system has enough power.

The 12v battery enables relays and ancillaries to kick in as part of the ev start process and when it drops below a certain level the car is effectively dead hence this fix.

I had it done yesterday as well as the rather complex ev battery heater solution I hope I never need to use! Fixes are am035a (12v) and am036a ev battery heater. You will not notice any difference after the s/w updates other than the knowledge it is there.

Hope it goes well.

Alan

 

[Jewels]

Basically the 12v battery can drain if you leave things plugged in and working, leaving lights on etc. or simple things like not locking the doors. Pretty much like an ICE car in certain aspects. The fix is to monitor the 12v battery and stop providing power when a certain point is reached to ensure the car system has enough power.

The 12v battery enables relays and ancillaries to kick in as part of the ev start process and when it drops below a certain level the car is effectively dead hence this fix.

I had it done yesterday as well as the rather complex ev battery heater solution I hope I never need to use! Fixes are am035a (12v) and am036a ev battery heater. You will not notice any difference after the s/w updates other than the knowledge it is there.

Hope it goes well.

Alan

Hi Alan
Thanks for your message, nice to know. Happy driving and of cause Christmas.
Jewels

 

[sBenj]

I had it done yesterday as well as the rather complex ev battery heater solution I hope I never need to use! Fixes are am035a (12v) and am036a ev battery heater. You will not notice any difference after the s/w updates other than the knowledge it is there.

Hope it goes well.

Alan

Hi Alan,

Going to Mazda tomorow to apply same patches.

 

[Thebriggie]

Ask them about the rattling door solution whilst you're there! I got it done but they wouldn't show me the technical note!

Hope it goes smoothly for you.

Alan 🎅

 

[Ciprotim]

Had my update and a locking fault fixed over the last few days, I never had issue with dead 12v problems like others here but glad the update will sort this out.
however the fake engine noise as considerable dropped in volume to the point I can just here it which I’m glad tbh
there is no internal settings to turn this off or on as most of us know and I know you can turn it off via a few button pressing but that is on a different post.

 

[Discodog2]

Had my update and a locking fault fixed over the last few days, I never had issue with dead 12v problems like others here but glad the update will sort this out.
however the fake engine noise as considerable dropped in volume to the point I can just here it which I’m glad tbh
there is no internal settings to turn this off or on as most of us know and I know you can turn it off via a few button pressing but that is on a different post.

i had warning light this morning low 12v malfunction . Called RAC needed new battery he said they shouldn’t go within 18 months battery is supposed to last 3 to 5 years . I checked with mazda garage my reg no wasn’t on a recall . Only got 18 months lease to go on car . Let’s hope new battery lasts next 18 months 😂

 

[h5n1xp]

i had warning light this morning low 12v malfunction . Called RAC needed new battery he said they shouldn’t go within 18 months battery is supposed to last 3 to 5 years . I checked with mazda garage my reg no wasn’t on a recall . Only got 18 months lease to go on car . Let’s hope new battery lasts next 18 months 😂

The 12v lead acid battery is usually pretty reliable, but they are a mass produced commodity item now… So, your could have just been a duff one. Fingers crossed the new one will be fine.

I am intrigued how often the MX-30 brings the aux 12v system on!

 

[hgv]

My battery died. It went dead when the car was standing. I went for 24month service one month ago . They mentioned nothing about battery 12V having an issue 😒. So everything was OK with the car . They made this software update for the battery . Today the battery 12v died. My assistant called mazda assistance and the mazda. They told me it's not on the guarantee. It's one month past the 24month inspection. So they will charge me for that . You know what ? I think it is too much for me . I ve had it with mazda. Never ever ever ever ever mazda. Probably the idiots that run the show in Europe are the problem . But then again it doesn't make much of a difference to me.

 

[BioTeq]

Why did it die? It doesn't sound like the issue is related to the AC charging problem for which the update was made?

 

[Thebriggie]

The update I had was nothing to do with AC charging? "AM035A should give better 'treatment' for the 12v battery (avoid empty 12v battery) and improvement (bugfix) for cabin heating" It was to monitor the 12v battery drain, potentially from something not being fully shut down, disconnected or a faulty module.

Is there another software upgrade I should know about?

 

[hgv]

Why did it die? It doesn't sound like the issue is related to the AC charging problem for which the update was made?

I dont know. All I know is that it was 30 days ago in the 24m inspe. I send compalint to mazda Germany. No reply. I am used to it. New car with a battery dead in 24 months. No reply.
Good for mazda!! I m getting used to it. Should have known better.

 

[BioTeq]

Something weird happened with your car, I suspect you have something sucking on that battery more than it should. One of the cars' many computers might be drawing instead of sleeping when you turn it off. In fact, I have a camera hanging on the 12v via the OBD socket and I've never had a single issue.
I would probably insist on your Mazda dealer to find out why the battery died.

 

[hgv]

It's

Something weird happened with your car, I suspect you have something sucking on that battery more than it should. One of the cars' many computers might be drawing instead of sleeping when you turn it off. In fact, I have a camera hanging on the 12v via the OBD socket and I've never had a single issue.
I would probably insist on your Mazda dealer to find out why the battery died.

He is not my dealer , its just a dealer. And there is nothing attached to my vehicle. The whole dealer mazda system is poor and ineffective. It's just bad business. In the US or Japan systems work, after sales is great. The stupid battery costs 50euros. Anyway ...

 

[DarrenB]

Hi all. I'm currently having 12v battery issues and had believed my vehicle had the am035a fix applied in April, but now I've been informed that it hasn't as the fix was not applicable for my vehicle. Has anyone else in an MX-30 actually had the am035a fix applied? Thanks

 

[kevancroft.kc]

12v battery recall for software update - just had a letter from Mazda and had to book car in for software update ( service campaign) due to the ECU which may not be going into sleep mode after the ignition is turned off, they say in which case an electrical current may continue to flow causing the 12v battery to discharge, so requires a software update.
Only posting this as I think I have seen a post saying that their 12v battery was going flat, and think bc another said they thought their phone cable left plugged in had drained the 12v, which did seem a bit strange, maybe this is the real reason.

Can you post a copy of the letter please?