Key Fob Battery

[Chongma]

After 18 months of nearly daily usage, had a low key battery message pop up on the dash.
Looks straight fwd enough, p.123 of the manual with a CR2032 battery.

Ok, that took a lot longer than expected.

Step 1:
Pry off the clip and open lower cover.
Problem here is knowing how much force to use and where it's being held on.

Digging in at the end as shown in the manual, it doesn't show how far in you need to separate the cover. There's a nice groove shown in the picture below, but that's misdirection!

Just use the guitar picker go in about 1mm and then slide it to the other end of the key fob!
There are 4 clips holding the lower cover at the other end, towards the silver circle.

Step 2: unscrew the screw and remove the battery cover...
they make it sound so simple...

With the screw removed, the cover still won't come off. Took a while (as I didn't want to break anything), but eventually worked out to slide the guitar pick in at the end away from the screw and then pry the cover off with a bit of force.

There are 4 latches on the sides which keep the cover on!
Then replace the battery

 

[Alb]

The other fob will be much quicker!

 

[CybersterWatcher]

I'm glad you posted this - I just did mine.

No warnings on the dash but the key was refusing to work unless I was next to the car so I replaced it. What a pain to do.

 

[WillowPAW]

Amazing - thank you so much
Car has been away at garage for over 3 months (twit collided with front offside) just collected it today and fob battery showing low and needing replacing.
Thank you for posting - gave me confidence to change it. As you say, worry is damaging it not knowing how much pressure to apply

 

[hillhopper]

Just aquired a 2022 MG5, yestedday it came up with key battery low, so changed it today but now the buttons will not lock or unlock the car and the jeyless entry is nit responding. But if sat in the car I can put tge car in READY mode and drive it. Got another key but just puzzled, any thoughrs before I get on to the dealer I got it from?

UPDATE; This will give you a laugh. I was sat on tge bog wondering why the key fob wouldn't work when I had an 'epiphany', I remembered thatthe new battery had a sticker on saying 'harmful if swallowed' i had forgotten to remove it, numpty. Going to cekebrate now with a beer, that would have kept me up all night.