Speed Limit Recognition Issues

[Data]

My speed limit recognition system on my Jan 2025 MG ZS EV LR Trophy Connect works fine in nearly all situations. It occasionally might miss a partially overgrown speed limit sign but it usually gets them ok. This is pretty much the same as my other cars...so I'm happy.

One thing to mention is that my car had a completely new software suite loaded into it not long after getting it. This included R27 Telematics which then allowed every other computer module (6 of them) to be upgraded. You cannot get these other updates without R27. These updates were significant & designed to improve the cars systems & provide one or two new features. The car was hooked up to the MG server for over 3.5 hrs. I believe earlier cars without these updates may not be performing in an optimal way for things such as the speed limit recognition etc etc. I must say the whole car is performing faultlessly at nearly one year old now. Of course, this is what one should expect!

 

[hmadsen]

My speed limit recognition system on my Jan 2025 MG ZS EV LR Trophy Connect works fine in nearly all situations. It occasionally might miss a partially overgrown speed limit sign but it usually gets them ok. This is pretty much the same as my other cars...so I'm happy.

One thing to mention is that my car had a completely new software suite loaded into it not long after getting it. This included R27 Telematics which then allowed every other computer module (6 of them) to be upgraded. You cannot get these other updates without R27. These updates were significant & designed to improve the cars systems & provide one or two new features. The car was hooked up to the MG server for over 3.5 hrs. I believe earlier cars without these updates may not be performing in an optimal way for things such as the speed limit recognition etc etc. I must say the whole car is performing faultlessly at nearly one year old now. Of course, this is what one should expect!

Sounds like a completely different experience than i have with mine that has R25 and thus, the older stuff in the other modules.

I wonder if the "Gold service" subscription i have with the MG certified workshop will do these upgrades as well.

Massive disapointment, that such an update for the infotainment is not sent OTA, this would cut down on the time needed to upgrade all of the other modules massively.

I am going to do a firmware version readout on all the modules possible with the eZS app, i hope this will reveal if they even touched anything.

They did state on their online booking website that the car had to be delivered with atleast 50% SoC, if not they would charge me extra to charge the car, as they would not be able to do firmware upgrades if the car was delivered with less than 50% SoC

 

[Data]

Yes, I thinks the 50% SoC is fairly standard re when going in for service. It's worth pursuing the complete software upgrade route if you can but the amount of time taken to do them is a main dealer concern. They may not be keen if the car is performing ok. Would be great to have proper over the air updates but doubt that's coming anytime soon.

 

[hmadsen]

Yes, I thinks the 50% SoC is fairly standard re when going in for service. It's worth pursuing the complete software upgrade route if you can but the amount of time taken to do them is a main dealer concern. They may not be keen if the car is performing ok. Would be great to have proper over the air updates but doubt that's coming anytime soon.

I have an agreement with them to look at the typical clicking sound, to see if bolts needs tightening, discs needs replacing or steering rack needs replacing, if they are efficient, they could have the computer put on, doing it's thing while they do the inspection and so on.

They have allocated 3,5 hours and the first inspection would not take nearly that long as far as i can see from the "What needs to be done, year one" sheet.

We will see, i a certainly going to press them on the issue, especially because they specifically mention it needing to be at 50% or more to do software. If they then did no software i will talk to them about why no software was updated when i know there are updates available and they indirectly, but specifically said that it would get updates (Why mention the 50% if not)

 

[ev nerd]

Apologies, for a long post and I know that there have been discussions about this in previous threads but I have to vent a bit and see whether anybody thinks the speed limit recognition system on the ZS is in any way acceptable. Make no mistake, I love the car but the system in my new ZS EV is, in my opinion, horribly flawed.

Firstly the national speed limit is set at 60mph and there is no way to change it. So, unless I go into manual mode, it flashes warnings at me constantly on dual carriageways and motorways which don’t have other restrictions.

Secondly, and even better, if you indicate or slow down when changing lane, to overtake for example, it loses any indication of speed limit until it sees another sign. How often do you see those on open motorways or dual carriageways? The only way to maintain the displayed speed setting is apparently to change lane without indicating or slowing down. How safe is that? Of course, if you do that, the lane keep assist kicks in! So, of course, you spend the rest of your time on that road with no indication of speed. I’m not sure where it leaves you if you are using intelligent speed limit assist.

Thirdly, if you again indicate/slow down at a junction, then the speed limit indication is also reset until the next sign is detected. So, if you are entering an urban area, for example, and the car detects a 30mph sign, which will quite often be at a junction, then it will display 30mph as the speed limit but the minute you turn the speed limit indication is lost. So, being an urban zone with blanket 30mph limit you can drive around all day and will not see a speed indication again as there are seldom reminders around urban streets. Even more problematic in urban 20mph zones which include a number of streets such as we have. Similarly, if you are on a faster road leading into a roundabout where all the exits have lower speed limits, the limit will be posted at the exit to the fast road and the ZS will lose the speed limit indication the minute you take any other exit.

Now I had a similar system on the 2015 Qashqai that the ZS has replaced and it worked flawlessly with none of these issues. As an example of how useful it was a dual carriageway leading off the first exit of a roundabout near us recently changed speed limit after many years and without warning. The new limit is posted at the exit from the dual carriageway onto the roundabout. So the Qashqai picked up that sign and maintained that speed limit warning as I took the first exit where the limit had changed. I would not have realised otherwise and the ZS would not have given me any indication. In fact I was on a ZS test drive subsequently and the MG dealer with me had not realised that the limit had changed. He was grateful as there are speed cameras down there!

I would hope MG could address these issues as it just does not make sense to me. Unless, of course, anybody can tell me I’m missing something.

Vent over. Thanks for indulging me!

Interesting I had a 14 plate qashqai the speed recognition was set via gps . It was very accurate even at road works and my on my new we’ll 72 plate zsev speed limit is set by camera which is crap. I mainly use car play but I also love my zsev.