HV battery shutoff when initiating rapid charge. Vehicle control system fault.

[Lovemyev]

We collected our Trophy from Chorley on the 18th March 22.
It was almost fully charged, because we had a 100 mile journey home.
As we left the showroom, I noticed that the dealership had its own rapid charger !.
I therefore assume they used this to charge our car, prior to collection.
So, it has successfully charged at least once on a rapid then !.
Our charging needs are 99.9% home charging, so I am not overly concerned.
Maybe the Chorley lads checked the software version, as part of the PDI checks ?‍ ???.

 

[N2STY]

We collected our Trophy from Chorley on the 18th March 22.
It was almost fully charged, because we had a 100 mile journey home.
As we left the showroom, I noticed that the dealership had its own rapid charger !.
I therefore assume they used this to charge our car, prior to collection.
So, it has successfully charged at least once on a rapid then !.
Our charging needs are 99.9% home charging, so I am not overly concerned.
Maybe the Chorley lads checked the software version, as part of the PDI checks ?‍ ???.

The problem is different rapid chargers are giving different results so who knows?

 

[Lovemyev]

The problem is different rapid chargers are giving different results so who knows?

Hopefully, I intend to return the car to the lads at Chorley for its first service, which is a LONG way off !.
I will pass about 5 other dealers on route, but I don’t care, I trust them to do the job correctly !.

 

[mg52021]

I have created the post for the charger LG5 LR can use. Hope this help for ZS EV

Rapid charger we can use

I got the MG5 LR a month ago. I found that some rapid chargers are not support MG5 LR. I make a listing as follow: Chargers supported: Pod Point 50kW BP Pulse 50kW Gridserve 120kw Osprey 50kW InstaVolt 50kW Fastned 175kW Member Sido information SWARCO Geniepoint Member Jomarkh information...

www.mgevs.com

 

[Barry wood]

My dealer has had mine for 4 weeks with this problem telling me they are waiting for mg to get in touch

 

[hmadsen]

#66 in the Danish PDI states :

Connect the car to a suitable charger and charge to make sure the battery is in balance.

Mine was on the charger when i took delivery, but they had gotten it a bit later than agreed so it only made it to 91% before it was disconnected.

 

[DuracellBunny]

2022 Facelift Trophy here.. We've been using ESB Energy Rapid Chargers via the Bonnet app, no issues.

I plugged it into a GeniePoint charge point via the Bonnet app and bam, Vehicle Control System Fault.

Tried the disconnect battery trick, no luck, the fault was logged in the computer. Called the AA which was provided through the purchase of the car, chap connected via OBD, car was too new for his system but he tried a "generic" fault clear, which worked. Car started straight away.

If this happens to you, ask recovery to do a generic fault code reset.

Is it possible to get an OBD cable that can do this via mobile phone in the event of an emergency?

Same thing happened to me twice, first time at a rapid charger HV battery was off with a system fault and 12v battery voltage clock dropped from 14 to 12v, turned the car off for 10 min and fault went away, second time same story just connected to fast charger but system fault error persisted. Called the AA, guy came and used an OBD2 terminal to read faults, none showed and cleared faults and that fixed it. He told me the CCS charger threw a spike that knocked a car module off and reading faults (nothing shows up) and clearing them is the fix. Another way to fix it is to disconnect 12v battery and wait 10 min but that causes the car to forget all settings.
I have ordered an OBD2 Bluetooth with clear faults capability just in case. Will also carry some keys to disconnect the 12v battery if nothing else works.

 

[chrisev]

AA man tried disconnecting and waiting 10 mins for mine, even tried 15 in case 10 wasn’t enough. Shorting with a spanner didn’t work, tried a few times but he didn’t try using an OBD2.

Dealer rang me after a few days to say they plugged In and charged up and I could collect, guessing they cleared the fault. They “said” they were in contact with MG but not sure if they were just saying that. Told me not to let it get less than 30% charge, which would obviously cut the range with the reduced 80% battery top up on fast chargers.

Hoping it’s really rare and now I have full RAC relay cover between them and MG connect one of them will have an OBD2 terminal. It does leave us worried to use a fast charger or use for long journeys or important journeys.

 

[JCFlippen]

AA man tried disconnecting and waiting 10 mins for mine, even tried 15 in case 10 wasn’t enough. Shorting with a spanner didn’t work, tried a few times but he didn’t try using an OBD2.

Dealer rang me after a few days to say they plugged In and charged up and I could collect, guessing they cleared the fault. They “said” they were in contact with MG but not sure if they were just saying that. Told me not to let it get less than 30% charge, which would obviously cut the range with the reduced 80% battery top up on fast chargers.

Hoping it’s really rare and now I have full RAC relay cover between them and MG connect one of them will have an OBD2 terminal. It does leave us worried to use a fast charger or use for long journeys or important journeys.

Which model have you got - Gen1 or new facelift?

 

[DrTom]

After a WhatsApp discussion with my dealer, having told them about the notification mentioned by Miles in the podcast, they pushed MG technical for an answer on this and their last replies goes something like.

"Voila, with a bit of pressing, they've now released the bulletin advising of which updates to do"

So if your dealer has not received the bulletin, ask them to contact MG technical.

 

[TonyP]

Can this update be done at any dealer and not just the one you purchased the car from?

 

[slmorgan42]

Same thing happened to me twice, first time at a rapid charger HV battery was off with a system fault and 12v battery voltage clock dropped from 14 to 12v, turned the car off for 10 min and fault went away, second time same story just connected to fast charger but system fault error persisted. Called the AA, guy came and used an OBD2 terminal to read faults, none showed and cleared faults and that fixed it. He told me the CCS charger threw a spike that knocked a car module off and reading faults (nothing shows up) and clearing them is the fix. Another way to fix it is to disconnect 12v battery and wait 10 min but that causes the car to forget all settings.
I have ordered an OBD2 Bluetooth with clear faults capability just in case. Will also carry some keys to disconnect the 12v battery if nothing else works.

Which obd2 did you order?

 

[Lovemyev]

Can this update be done at any dealer and not just the one you purchased the car from?

In theory it SHOULD be able to get applied at any dealership with the correct equipment and the software update package from MG.
But after saying that, I would choose your dealer very carefully !.
History tell us that certain inexperienced dealers had a difficult time successfully applying the BMS update to the Gen 1 model ZS EV’s.
Try and use a dealer who has previous experience on working on EV’s.
A “Shared” dealer who retails and services Nissan EV’s are a better option IMHO.
If my car needs ANY software checks or upgrades, it will be going to the lads at the Chorley group.
I will pass at least 5 other MG dealers on route, but I don’t care !.
It’s worth the nearly 200 round trip to get my car updated correctly.
I have a dealer less than 15 minutes away from my house and another one 20 minutes away.
But my car ended up getting immobilised at one of these dealers last year for four days !.
C19 travel restrictions prevented using my chosen dealership.
Need I say anymore ?.

 

[DuracellBunny]

Which obd2 did you order?

Bluetooth OBDII scan tool for Android devices Amazon product ASIN B005NLQAHSI have yet to receive it and get back to you to confirm it works

 

[chrisev]

Which model have you got - Gen1 or new facelift?

Gen1, not long range.

After a WhatsApp discussion with my dealer, having told them about the notification mentioned by Miles in the podcast, they pushed MG technical for an answer on this and their last replies goes something like.

"Voila, with a bit of pressing, they've now released the bulletin advising of which updates to do"

So if your dealer has not received the bulletin, ask them to contact MG technical.

Bugger, just got mine back Thursday. Great news though!

 

[Pepsico]

I am new to this forum and was thinking of buying a ZS but this problem is scaring me a bit as it is not just an annoyance. Tried to read everything but not sure I fully understand:

• what is the problem
• has the root cause been identified
• what are the solutions (if any)
• How common is it on recent models (all of them? Some of them? A handful?)

 

[N2STY]

Look like it's 1st build one with older software seams to be getting sorted a few people here have had problems but % wize a small amount

 

[Pepsico]

Look like it's 1st build one with older software seams to be getting sorted a few people here have had problems but % wize a small amount

So if I buy a demo model, I can ask about it? What is the exact question to ask?

 

[N2STY]

So if I buy a demo model, I can ask about it? What is the exact question to ask?

I would 1st ask if the know about software bulletin for rapid charges hopefully they say yes then make sure its been updated in your car should be recorded in digital service book or at least have in writing that all software is up to date on all software from a date before delivery?

 

[N2STY]

Oh and make sure its been de bound from any phones. (ismart) b4 you expect car seams to be causing problems