Slow screen start up + missing DAB?

[MattyS]

So over the last few times we've used the car over the course of 3 weeks or so, I've noticed that each and every time, the screen and car systems are much slower to start. (4 or 5 seconds I'd say- not timed it yet though)

I usually like to wait before moving off everything is in order, but recently DAB is missing until I select the FM radio button and voila, DAB is selected instead.

I have been used to the car having different start up times sometimes quick, others not so much, but this now seems like the norm.

It's not a massive deal but because it's not how the car usually behaves, I am a little concerned.

Has anybody had similar happen?

 

[JohnV6]

With my ZS EV yes once. I am religous now in pressing the start button but not the brake & allowing it to 2wake up" . Then I power up the motor.

My Morgan is a 2022 car with a BMW B48 engine. The instructions are clear press start once without foot on clutch / brake. Allow instruments to kick in then press start with your foot on the pedal.

i'm guess the advance of the ECU etc takes us back to valave TVs. Patience is all.

 

[Ian Key]

With my ZS EV yes once. I am religious now in pressing the start button but not the brake & allowing it to wake up" . Then I power up the motor.

What start button? The MG4 doesn't have one

@MattyS it sounds like the software boot sequence has gotten a little confused. It might be worth disconnecting the 12V battery for a couple of minutes to reset everything.

 

[GaryMG4]

Yes it happens occasionally, usually for a few days then it behaves itself for a few weeks. Similar things happen with the traffic sign recognition, sometimes it is off when I start but kicks in after a few miles other times it will stay off for a day or so.

 

[MattyS]

Also, may be linked but I've also found the traffic sign recognition was off yesterday too, is that disabled on low battery (currently at 23%)?

 

[GaryMG4]

Also, may be linked but I've also found the traffic sign recognition was off yesterday too, is that disabled on low battery (currently at 23%)?

Not that I'm aware of

 

[JohnV6]

Not on my ZS EV . Everything works you just get warnings of low battery level under 20%

 

[siteguru]

What start button? The MG4 doesn't have one

Yes it does - it is bum-activated.

 

[Kithmo]

4 or 5 seconds to start booting up is slightly long, FWIW mine occasionally takes about 30 seconds on a second boot up of the day, but normally starts as soon as I sit in the seat. Now finishing the boot sequence is a different story, sometimes it's finished in 5 seconds sometimes it takes longer.

 

[Martinonline]

The boot sequence before you can drive is different to that if the infotainment screen. The car starts booting up immediately I sit in the seat and is usually ready to go within a few seconds even with the infotainment screen still booting with its start-up video. If there are any indicated faults then I have to wait for the infotainment screen to boot to use the power off option + power up again.

Booting the infotainment system is different and that can take zero to (exasperated, press the home button to reboot) time.

 

[Kithmo]

. If there are any indicated faults then I have to wait for the infotainment screen to boot to use the power off option + power up again.

The faults that occasionally pop up on mine usually disappear when the infotainment has finished booting up if I don't drive off before it's done.

 

[Traincrew56]

So over the last few times we've used the car over the course of 3 weeks or so, I've noticed that each and every time, the screen and car systems are much slower to start. (4 or 5 seconds I'd say- not timed it yet though)

I usually like to wait before moving off everything is in order, but recently DAB is missing until I select the FM radio button and voila, DAB is selected instead.

I have been used to the car having different start up times sometimes quick, others not so much, but this now seems like the norm.

It's not a massive deal but because it's not how the car usually behaves, I am a little concerned.

Has anybody had similar happen?

My MG4 is going to the dealers on Tuesday for an upgrade due to problems with DAB and my screen is sometimes slow to start up.

 

[ReintjeWA]

How do i turn OFF the traffic (speed) Sign recognition?
it is so often wrong.
it misses some signs
it doesn't recognise "20" as a speed limit
all in all i find it an inaccurate distraction
[MG5 LR Pre-facelift]

This is the MG4 forum so you might want to ask in the MG5 forum for a more accurate answer. In the MG4 you can't turn this off as far as I'm aware.

 

[Martinonline]

In my Trophy I can switch it off in MG Pilot. I don't know if the state is remembered because I have not switched it off though it it occasionally decides to do it itself before returning.

 

[MG Clive]

This is the MG4 forum so you might want to ask in the MG5 forum for a more accurate answer. In the MG4 you can't turn this off as far as I'm aware.

Thanks, moved.

 

[Rolfe]

This is the MG4 forum so you might want to ask in the MG5 forum for a more accurate answer. In the MG4 you can't turn this off as far as I'm aware.

Yes you can. I turn mine off as part of the pre-flight check every time.

Thread 'I never knew the speed limit recognition was so bad'

May 16, 2025

I started disabling the speed limit recognition on my car on day 2, along with the LKA, because the LKA was frankly diabolical and the speed limit thing was obviously lying to me. I kept doing that until I got the LKA fix last week, when I decided to discontinue the pre-flight routine to see what would happen.

I knew the speed limit recognition was poor on the A701, because almost all "national speed limit" signs are followed soon afterwards by a reminder that the HGV speed limit is 40 mph, so the car sees that and flashes 40 at you for the next 20 miles. But I've seen it behaving really...

• Rolfe
• limit mg4 recognition sign recognition speed speed limit speed sign
• Replies: 43
• Forum: MG4 EV Forum