Battery - POWER LIMITED

[graham1946]

Love my MG4, purchased July 2023. Jan 2024 with a battery percentage of 71%, warning message POWER LIMITED LIMITED SPEED, on a busy road this was dangerous.
Several weeks later garage had returned MG4 with reloaded S/W.
In July 2024 charged to 60% and parked up for 3 days, power had dropped to 2%, back in the garage, still like the MG4 but has anyone ideas on cause, my garage is struggling.

 

[Tight Git]

I've never had this issue in 32k miles on my November 22 SE SR however I think a long gone member (Bowfer?) had this issue with his early one and the dealer never got to the bottom of the problem, which ended up with the vehicle being rejected.

 

[Rolfe]

Some people did seem to get a software fix for this that worked. @squirrelz, @BrownChair.

 

[fnegroni]

Love my MG4, purchased July 2023. Jan 2024 with a battery percentage of 71%, warning message POWER LIMITED LIMITED SPEED, on a busy road this was dangerous.
Several weeks later garage had returned MG4 with reloaded S/W.
In July 2024 charged to 60% and parked up for 3 days, power had dropped to 2%, back in the garage, still like the MG4 but has anyone ideas on cause, my garage is struggling.

What was your charging pattern?

 

[BrownChair]

In my case I never got any warning messages so I think your issue might be a bit different. For me, when accelerating, the power wouldn't up beyond for example 30% even though on full throttle

 

[nerfmg]

Mine is in the dealership at the moment with a similar issue. They said it's the inter cooler and is expensive. Hoping the warranty will cover it. It happened after I drove home on the motorway as normal speeds, home at 5%, overnight plugged in and started charging at 7kwh, it slowly started degrading to 5kwh. When I tried getting to work in the morning after 1 minute the turtle appeared on the display and power was limited. It hit worse and worse. At the moment the car is undriveable

 

[siteguru]

Are you sure they said Intercooler?

 

[Bam Bam]

Are you sure they said Intercooler?

Presumably the HV battery has a cooling circuit which would need some kind of compressor/intercooler?

 

[nerfmg]

Are you sure they said Intercooler?

Yeah