ZS EV service update log

Date	Service update code	Update content
Jul 2020	Comfort 2 (chargeable although some dealers discount)	Faster system self-check when powering ‘ON’ Infotainment volume maintains and restarts at previous volume setting after powering ON/OFF Auto High Beam system disable option available in menu settings General warning chime quality improvements and reduced volume Warning chimes reduced for MG Pilot and Key Reminder Vehicle temperature and temperature alarm featured in the instrument display Vehicle range always on display in instrument pack Vehicle can be unlocked during A/C charging, when re-locked charging automatically resumes
Jul 2020	SA017 (free)	Battery protection software update (supersedes SA010 below?)
Feb 2020	SA016 (free)	Driver's door wiring loom recall
Aug 2020	SA015 (free)	BMS update (supersedes previous)
	SA010 (free)	HV fuse update
Jan 2020	SA??? (free)	BMS update (supersedes previous)
Dec 2019	SA??? (free)	BMS update

 

[Gomev]

Great stuff.

Shouldn't the

• Vehicle can be unlocked during A/C charging, when re-locked charging automatically resume

be under the SA015 though ?

 

[MikeR]

Maybe in that as well but the comfort 2 bullets were taken from the MG website

 

[Stuart Wright]

Thanks, @MikeR for starting this resource. If people have more/better information, please reply and Mike will update the first post.

 

[AussiePete]

Mike, I had been tracking these also for my new ZS EV due for delivery mid-Dec.

I had slightly different numbers

SA017 is titled Battery Protection SW update (I’ve a screen shot of the service bulletin)

I think SA010 is the HV Fuse update

 

[MikeR]

Hi Pete - thanks. I've just had 017 done but not 010. Maybe the fuse update was a bodge until the 017 software update became available as the earlier BMS updates seem to have been.

 

[Tango130]

Some useful information I've source from other threads/facebook:

HV Battery/Battery Protection SW update document:

Delayed charging/charging whilst unlocked:
@ScifiArgonaut has provided a great post with more detail about timed charging & unlocked AC charging:

.

.

www.mgevs.com

1st. Update your ZS software. I booked mine into Richmond MG Southampton 3/11/20, they really listened to me and understood what I was talking about. I told them I had a Rolec charger and that I had charging issues and that I read on the forum that there is a BMS updates that can fix it. They have a technician called Gareth who is their EV expert and they said bring it in and they would check if the software was up to date even though I only got the car on 21 Set 20 and it already had the Comfort2 update.

As they recommend Rolec Chargers I asked if they would do this free of charge and they said yes under warranty. They contacted MG technical who authorised EVCC & OBC updates applied to my car. I told them that I wanted to post what the updates where on this forum so they kindly supplied me with this...

EVCC - Electric Vehicle Charge Control
Improves compatibility with smart and timed charging systems that use PWM wake up strategy (e.g. ROLEC Smart EV). When the customer connects the charging gun to the vehicle, a timer is started within the module. This allows a charge to delay the start of charging session for upto 10 hours before the EVCC module will shut down completely. If a charge starts but then stopped within 10 minutes the timer restarts.

If the charge starts and continues for more than 10 minutes, the timer will simply run for 10 hours from when the charge gun was inserted.

The charge timer will not terminate a charge session, even if the charge is delayed until 9 hours and 59 seconds after the charging gun is connected.

OBC - Onboard Charger
Allows the vehicle to be charged on AC charging stations without the need for the vehicle to be locked. When an AC charger is connected to the vehicle the charge gun will be locked into the socket and charging will start. If the customer locks the vehicle charging will continue.

If whilst charging the customer unlocks the vehicle the charging will temporarily stop, and the charge gun will be unlocked. If the charge gun is not removed within 1 minute, the charge gun will be relocked and charging will resume.

2nd ev.energy - check tariff peak times match your energy supplier and ask them to manually switch off trickle charge.

I first realised my ZS had the problem as the Rolec charger did not recognise when I was on peak rate and charged my car straight away and did not wait until off peak. - I could see what was happening on my smart meter. I then had to use boost in order to get a charge even when my tariff was off peak!

ev.energy (after a bit of e-maill ping pong), then told me what my peak times were set up to, of course they were wrong even though I had selected the correct tariff on the app!

They had to update the tariff on the app which took over a week but now it is set up correctly even though you cannot actually see what the peek times are on the tariff you have selected. You can only confirm its right on the app because when you update your Smart charge settings, "Only charge below" matches your peak rate in pence/kWh. I've asked them to show the peak rates on the app and they have made a note of the request for future app updates.

I told them I had my ZS charge software updated so they manually switched off trickle charge. (blue flashing light on the charger now instead of a green)

Good luck to everyone who is having this issue and I hope this helps you resolve it.

Regards

Jason

 

[jseabra]

Hi,

Is this applicable to 1st gen only or 2nd gen also gets these updates? (ZS EV 2022)

 

[jont131]

Just having SA052 applied to my 22-plate ZS LR mk.2 - is for a CCU update - issued July 23 - will try and get a copy of the bulletin for reference.

 

[Les burrows]

Never seen this before as I rarely look at the ZS model having a MG 4 and 5
Les