Our mg4 is dead

[timothy]

Hi our mg4 ev is dead it will not unlock and the mechanical key does not work can anyone help

 

[SimonS]

The AA. You’re covered by MG.

 

[AdamMGEV]

Hi our mg4 ev is dead it will not unlock and the mechanical key does not work can anyone help

Happened to me last week. The 12v battery will be dead. Call the AA under your MG service cover, free.

 

[JonnyG]

Hi our mg4 ev is dead it will not unlock and the mechanical key does not work can anyone help

What happened when you tried the manual key - did it not fit ? I notice that all the videos I've seen on this never show how to actually "unlock" using the key, they only show how to access the lock and the key. I presume you insert the key and turn it and then pull the handle ?

Happened to me last week. The 12v battery will be dead. Call the AA under your MG service cover, free.

How did the AA get in out of interest ? or did they transport it to a dealer.

 

[Alb]

Hi our mg4 ev is dead it will not unlock and the mechanical key does not work can anyone help

Do you mean you can't open the door?

 

[GameZone]

Is the MG4 delivered with a garbage 12v battery? I get the 12V battery level low error once in a while. I recently bought myself a £250 battery from Bosch to swap with the original.

 

[Sloucher]

Is the MG4 delivered with a garbage 12v battery? I get the 12V battery level low error once in a while. I recently bought myself a £250 battery from Bosch to swap with the original.

A lot of the time it's down to bad connections. The cars are delivered to the docks with the 12v battery disconnected for safety and reconnected to move the car, probably not securely. If a dealer then does not do their job properly at PDI and check the connections, then....voila, bad battery life.

 

[timothy]

All sorted AA sorted it but still needs to go to dealer the issue was battery dead and we didn’t know how to use mechanical key because never had to use before

 

[fnegroni]

Is the MG4 delivered with a garbage 12v battery? I get the 12V battery level low error once in a while. I recently bought myself a £250 battery from Bosch to swap with the original.

Did you trickle charge it to 100% before fitting it?
Did you get an AGM or LFP battery?

 

[GameZone]

Did you trickle charge it to 100% before fitting it?

Haven't installed it yet. Why? I was planning to charge it to 100% first.

 

[JonnyG]

All sorted AA sorted it but still needs to go to dealer the issue was battery dead and we didn’t know how to use mechanical key because never had to use before

So how do we use it ? it would benefit others in the same situation to know. Might be worth us all having a trial run at using it just in case !

 

[fnegroni]

Haven't installed it yet. Why? I was planning to charge it to 100% first.

Just wanted to make sure you had thought of charging it to 100% which you have so kudos to you

 

[fnegroni]

So how do we use it ? it would benefit others in the same situation to know. Might be worth us all having a trial run at using it just in case !

It is explained in the user manual.

 

[GameZone]

Just wanted to make sure you had thought of charging it to 100% which you have so kudos to you

Yeah I bought my own 12v charger after reading about the issues.

 

[Robf]

So how do we use it ? it would benefit others in the same situation to know. Might be worth us all having a trial run at using it just in case !

Start around 4.10

 

[SimonS]

So how do we use it ? it would benefit others in the same situation to know. Might be worth us all having a trial run at using it just in case !

I’ve just tried it. The key needs turning about 45 degrees clockwise (right hand drive car) against quite a strong spring force then pull the handle. There is no klick or anything from the key to tell you when you have turned enough. If there is any charge in the 12v battery the alarm will go off as you open the door.

 

[AdamMGEV]

What happened when you tried the manual key - did it not fit ? I notice that all the videos I've seen on this never show how to actually "unlock" using the key, they only show how to access the lock and the key. I presume you insert the key and turn it and then pull the handle ?


How did the AA get in out of interest ? or did they transport it to a dealer.

I managed to get in with manual key, bit of a faff but watched a YouTube video and did it. Disconnected the battery myself and left it hoping it would solve the issue but didn't. AA battery totally dead, he started it, drove it a little and told me to leave it in run / start mode for a good hour to charge the battery.

 

[Rolfe]

As well as Adam's thread, this seems to be another virtually identical incident.

MG4 won't unlock or start 10 hours after last use

Hi, Firstly apologies if this thread is a duplicate or in the wrong place, So I drove my MG4 home from work this morning around 9 AM and put it on charge as the battery was around 30%. I've then just gone to the car and its completely dead, both keys won't work to unlock the vehicle, tried...

www.mgevs.com

Same advice given, but unfortunately the driver didn't return to the forum to report what happened next. Hopefully he got sorted one way or another. It's such a simple thing to get yourself out of, if you know how and you have access to some way to waken up the 12v system - even a set of jump leads and a charitable passer-by. But it can throw people enormously.