Drowsiness detection system? I thought you had an SE? I thought that wasn't available on the SE?

If you're so keen on the ACC, maybe I should try it some time. The idea gives me the heebie jeebies, but then I've never actually tried it.
I want to convert you to being an ACC lover. I use it probably 80 to 90% of my driving, hence my pain when it stopped working half way up the M6 last week!
 
I guess it was, 15 miles all motorway or dual carriages apart from about a mile.. Air con fully on too… forgot to put it into sports mode
About 200-250 miles of the 650 we did recently was dual-carriage or motorway. I set ACC to 65 for these, but went, er, faster when overtaking someone doing below that. On non-dualled sections, I set it to 60, except if in a traffic snake, when I dialled it down to just above the average speed of the snake. I felt I could drive more economically than the ACC could, or at least, I would not accelerate as enthusiastically as the car did, and I would back off from a greater distance. We had aircon on about half the time, I would say, and heating on for a period at the beginning of the trip. We absolutely were trying to drive for economy, but what I failed to mention was that we had a load of about 200kg on board. So I was very happy with a 4.1miles/kWHr average.
 
The SE does have a form of driver drowsiness detection, but it's quite crude ... it's basically based on how long the driver has been sitting in the seat without taking a break (i.e. time). I'm not sure of the exact time, but I think it's about 2 hours or so, at which point the car will bong and show an alert.
 
I also love ACC but it can sometimes be not as smooth as it could be. If you lightly press the accelerator then it disables the regen so it'll coast instead whilst still reacting to traffic.

It's not always appropriate but sometimes it is. I do it when approaching a slightly slower moving car or going down hill.
 
If you press the accelerator ACC will (temporarily) disengage, so it won't react to traffic (other than in an emergency situation) while doing this. You can tell this by the vehicle in front disappearing from the left side of the driver display. :)

ACC seems to work best with adaptive regen and Sport mode - or at least Custom with Sport acceleration/power delivery.
 
If you press the accelerator ACC will (temporarily) disengage, so it won't react to traffic (other than in an emergency situation) while doing this. You can tell this by the vehicle in front disappearing from the left side of the driver display. :)

ACC seems to work best with adaptive regen and Sport mode - or at least Custom with Sport acceleration/power delivery.
Yes, noticed this when pulling rank on the system and speeding up to overtake safely. The car icon disappeared in the display, making me wonder what happened for a moment, but then I realised that it was quite a clever way of letting you know you were in charge.
 
If you press the accelerator ACC will (temporarily) disengage, so it won't react to traffic (other than in an emergency situation) while doing this. You can tell this by the vehicle in front disappearing from the left side of the driver display. :)

ACC seems to work best with adaptive regen and Sport mode - or at least Custom with Sport acceleration/power delivery.
We had this discussion the first time I mentioned this. It definitely does still react to traffic. It will automatically speed up once the distance is big enough and coast until the gap is re-obtained when the distance is too short but without using the regen in a jerky fashion.

Have you actually tested it or just going on what the display shows?
 
The SE does have a form of driver drowsiness detection, but it's quite crude ... it's basically based on how long the driver has been sitting in the seat without taking a break (i.e. time). I'm not sure of the exact time, but I think it's about 2 hours or so, at which point the car will bong and show an alert.
The Prius driver drowsiness alert was based on how many time LKA kicked in, a coffee symbol appeared on the screen if you had been overtaking a bit without indicating (set on alert only).
 
The Prius driver drowsiness alert was based on how many time LKA kicked in, a coffee symbol appeared on the screen if you had been overtaking a bit without indicating (set on alert only).
That's a good example of what I was saying in the original post about the need to understand one's car these days.
 
I want to convert you to being an ACC lover. I use it probably 80 to 90% of my driving, hence my pain when it stopped working half way up the M6 last week!

‘All is well and all will be well. Thanks for such an upbeat thread
Tomorrow will be three weeks since we collected Goth Leo, our MG4 SE LR. We have already done nearly 1400 miles. This forum was very helpful as we stepped up to make the decision whether or not to buy Goth Leo, but there was one aspect of it that I was aware of, and that is, in general, folk post to forums such as this to help in resolving problems. That sometimes may make it appear that one only has problems with MG4s, so I thought I'd describe some of our experience so far, which can be summarised as, "The car is fine. The owners, however..."

We have just returned from a 650-700 mile round trip down south to the Borders and back. We averaged 4.1 miles per kWHr on the entire journey. Using public charge points only, the costs were just under 10p per mile. Yes, we aimed for cheaper chargers when we could, which helped, but nevertheless, the running costs so far have been a lot lower than we expected and lower than our justification sums allowed.

The car itself has behaved itself, with a couple of exceptions. But there's a "but" coming. Let's deal with the car exceptions first.

We have had one occasion when the traffic sign recognition system failed with a loud BOING noise and a scary message on the screen. Mostly I turn this off, as it's not wildly helpful. It would be great to be able to default this to off, but our pre-flight checklist easily includes turning it off. I contacted the dealer about this, who suggested bringing the car in for a check, but that's a 200 mile round trip so we will wait until we have other things to do in Inverness.

We were on our way somewhere a couple of weekends ago, in the rain, and were learning how best to use the window demisters, aware that someone on the forum had a fogging issue. All was fine, but I noticed that the bottom two rows of heater elements for the rear window did not seem to work. Again, I will report back to the dealer on this.

One real annoyance, which I hope they fix because there is no reason for it, is the lack of ambient temperature display.

And finally, we noticed an odd little mark on the front of the car, just to the right of the badge. I want the dealer to have a look at this, but I think it may be the remnants of a sticker that hasn't been adequately cleaned off.

Those are the only issues we can place fair and square on the new car.

Meanwhile, the owners have other problems. One of the reasons we wanted to buy the car now was the realisation that any or all new cars now come with a myriad of systems either for safety or for convenience. It's not so much driving any more as managing the car's systems (I'll resist grumbling into my grey beard at this point.) This makes it necessary to be aware of all these systems, so that when they are invoked, the driver realises what is going on. I'll deal with some of our "firsts" here, all of which gave us a fright, but all of which were understood for what they are, not problems per se, but the reality of driving a modern car. Yes, one may wish for greater control of the software, but that's not a battle we are likely to win.

The fist occasion was taking a left hand bend in a town. I noticed two pedestrians crossing a side road, but there was no danger. But becuse the road curved, the automatic emergency brake system must have considered the pedestrians to be walking into the road, and applied the brakes. Hard. A glance at the screen showed what was happening, but the degree of emergency brake shook us. This was one of those occasions where there was no danger but a system like AEB could not determine that, as it was not to "know" that the road continued into the curve.

We have had one other occasion when the AEB went off. last Saturday. This was in a 20mph zone, with a narrow pavement. A pedestrian was walking towards us, which I could see on the screen representation. But the narrow pavement and narrow road meant the system braked briefly, again quite hard. Some idiot who apparently did not believe in 20mph zones was tailgating me, which was the bigger source of concern, as this time we realised exactly what was happening.

We also had one instance of the drowsiness detection system kicking in. Again, a BOING noise and a message "Driver must take control" or similar. We were approaching an area we used to live in 15 years ago, and were reminiscing, so the system was right - I probably did not have have my full concentration on my driving. We were now much more willing to trust the car's systems, though, and, while suitably aroused from our slumber, we thought this was generally working as intended.

As most people here do, I switch off lane keeping assist, but once I must have forgotten to do this while my foot was on the brake, as it re-activated without my noticing, although my screen scan now takes inn the top left of the screen too, where LKA status is displayed. We came on to a motorway and, yes, I probably strayed too close to a line, and the steering prevented me from further drifting. This was not the violent shudder early MG4 owners have scarily reported, but I don't find it comfortable not being able to steer for a second or two. But again, I can't fault the system, or claim that it did something dangerous.

I found the adaptive cruise control a thing of wonder, but need to experiment with settings to make sure it doesn't brake and accelerate over-aggressively. I was amazed at how quickly I got to trust it. It's a pity the distance to the next car setting doesn't default to greatest distance, and indeed that there isn't one click more, as I sometimes felt a little close to the car in front, but numerous checks showed that the car was adhering to the 2 second rule.

The A9 is a horrible road at the best of times, but I appreciated the MG4's acceleration on a couple of occasions, allowing us to get past slow lorries etc, quickly and safely. I am also appreciating the fact that one can't stall an EV.

Recharging (new EV owners here) has been no problem at all, though we have been fortunate, arriving on a few occasions just as the previous occupant was finishing, or being the ones to make the next person wait. We have only had one broken charger and that was in Melrose, where, it seems, all the locals know that it is duff. We have also been aware how much extra infrastructure is being built (except here in the Highlands, where the Council still think it's 1923)

Someone here had a problem with their dealer drilling holes in the bodywork for the number plates. We have personal plates which for a number of reasons we could not get put on the car immediately. When I did remove the garage-fitted plates, I found that the rear plate was stuck on rather than screwed, which made it easier. I chose to do the same using Gorilla tape. The factory holes are very large, though, and I wonder if the size of the bolts required block a part of the number, making it easier for the garage simply to drill new ones. Not excusing it, but explaining it, perhaps.

We are now much more familiar with the car, and so many of the quirks, if they are quirks, regarding software etc we understand better. We have a pre-flight check of switching off LKA, AEB to alert, traffic sign recognition off etc, all with the foot on the brake. This take a second or two, but we save those seconds in not having ignition to turn or start buttons to press. One thing that is worth noting about the software, though, is that the screen for the driver is really well thought out. It's possible to take in everything in one quick glance. When one of the driver aids goes off, it displays for just a second or two, but it's all there. Other lesser cars <COUGHtesla> don't even have that front screen, making you look to the one side as though you were driving a 1960s mini, let alone one that shows all you need to know easily and intuitively. Well done MG on that.

So if there are new owners or possible new owners out there, I hope that these generally positive experiences are helpful to you when making your own decision. One last really nice observation - we saw quite a few other MG4s on this last trip, and the one before that. They're becoming quite popular, and that can only be a good thing.
‘all is well’ and all will be well. Many thanks for such an upbeat thread. I’m loving my MG4. I just wish MG would engage with this forum in a more constructive way.
 
Did you ever tell us why "Goth Leo" and just forgot?
Well, <ADJUSTS_FACE_TO_LOOK_DEADPAN>. You know how some cars have their own names, while others sort of take on the name of a previous car? For example, we've had only one Ruaridh Mhor, Angus, Mungo, Gunther and Xerxes, but more than one Lucia and Alfie. Well, Leo was our fiesty 4x4 Panda. When we got our MG4 I performed the Soul Tranferrance Ceremony, as one does, although, as you would no doubt know, you can never be sure the transfer will work. You know, a bit like binding a phone to a new MG4 - you never know if it will work. I tapped the old Panda's wing mirror when we left him, but got no response. Good.
But we got in to our new black MG4 and completed the ceremony, we said a tentative ".....hello?" and got some of the bad language back thwt Leo had learnt when he was surrounded by huge lorries on the ferry to Ireland a few years back. So it was old Leo in there, although his new body was all in black, and with some very firm attitudes.
So now we have Goth Leo, as opposed to LeoOB (Old Body).
These things are important.
You did ask...! :) :)
 
We had this discussion the first time I mentioned this. It definitely does still react to traffic. It will automatically speed up once the distance is big enough and coast until the gap is re-obtained when the distance is too short but without using the regen in a jerky fashion.

Have you actually tested it or just going on what the display shows?
Yes I have ... if the traffic in front slows further then the car will pile into the back of them. (Well, not exactly ... AEB will kick in. But ACC will not slow you down if you're feathering the throttle to achieve 0 or minimal regen). This is because applying any throttle manually disengages ACC - the other indication that this has happened is that the set speed in the driver display changes to a grey colour.
 
Well, <ADJUSTS_FACE_TO_LOOK_DEADPAN>. You know how some cars have their own names, while others sort of take on the name of a previous car? For example, we've had only one Ruaridh Mhor, Angus, Mungo, Gunther and Xerxes, but more than one Lucia and Alfie. Well, Leo was our fiesty 4x4 Panda. When we got our MG4 I performed the Soul Tranferrance Ceremony, as one does, although, as you would no doubt know, you can never be sure the transfer will work. You know, a bit like binding a phone to a new MG4 - you never know if it will work. I tapped the old Panda's wing mirror when we left him, but got no response. Good.
But we got in to our new black MG4 and completed the ceremony, we said a tentative ".....hello?" and got some of the bad language back thwt Leo had learnt when he was surrounded by huge lorries on the ferry to Ireland a few years back. So it was old Leo in there, although his new body was all in black, and with some very firm attitudes.
So now we have Goth Leo, as opposed to LeoOB (Old Body).
These things are important.
You did ask...! :) :)

Come over here and say that!

 
Yes I have ... if the traffic in front slows further then the car will pile into the back of them. (Well, not exactly ... AEB will kick in. But ACC will not slow you down if you're feathering the throttle to achieve 0 or minimal regen). This is because applying any throttle manually disengages ACC - the other indication that this has happened is that the set speed in the driver display changes to a grey colour.

What you are describing is not what I observe.

Since we both seem to be certain that the other is wrong might it be that there are different software versions at play?
 
Well mines an SE SR for a start. :)

However I may have been mistaken in my previous reply - I tried it (briefly, unscientifically) after posting and didn't see the indication go grey. (It does do that when you press the brake pedal, but I didn't notice that when pressing the accelerator. However I didn't spend long on the test).
 

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