Merged thread: Automatic Emergency Braking activating for no reason

[LenEV2016]

Had my first one today, at first I thought the car braked because another car in the lane next to me got too close to the line, but when I checked my dashcam later I think it was a pedestrian stepping out towards the road from a bus stop. I'll admit I was swearing for a bit, but after seeing the footage I understand why the car did it.

For the people who want to permanently disable these functions (AEB, ELK etc) why didn't you just buy a car with a 2 star NCAP rating? Because I would imagine we all want as high a safety rating as possible, but these cars get the high ratings because they have these systems.

There is wanting a car with as high an NCAP rating as you can and wanting a car where all the safety systems work as the should, over two years since launch and MG still hasn't sorted out all cars with safe versions of each system

 

[LenEV2016]

Renault have implemented a single button to select your preferred configuration of these systems on their new cars. That's what we need on MGs.

Even before this recent update they still provided a physical button for LKA on/off when they launched the current EVs

 

[NLMGSAN]

Some posts got lost during maintenance?

 

[Rolfe]

Not that I know about.

 

[LenEV2016]

Not that I know about.

Yeah a good few after a certain time from yesterday are missing

 

[Ian Key]

Some posts got lost during maintenance?

Yes. 5 of mine have disappeared

 

[craigupnorth]

Had my first one today, at first I thought the car braked because another car in the lane next to me got too close to the line, but when I checked my dashcam later I think it was a pedestrian stepping out towards the road from a bus stop. I'll admit I was swearing for a bit, but after seeing the footage I understand why the car did it.

For the people who want to permanently disable these functions (AEB, ELK etc) why didn't you just buy a car with a 2 star NCAP rating? Because I would imagine we all want as high a safety rating as possible, but these cars get the high ratings because they have these systems.

If they would release a version of the MG4 with a lower NCAP rating that would be excellent. I’d happily swap. Had no idea when I bought it that I would find LKA so annoying

 

[OriginalBigAl]

The Chinese versions do not have these systems , and are significantly cheaper! Would an enterprising importer find some profit in this and would they be legal? Probably not, but there were many grey imports in the 90,s.

 

[Rolfe]

Yeah a good few after a certain time from yesterday are missing

Yes, I see that now. I don't know if there's any way to restore them. Stuart might know.

 

[LenEV2016]

If they would release a version of the MG4 with a lower NCAP rating that would be excellent. I’d happily swap. Had no idea when I bought it that I would find LKA so annoying

Or just release a version with the current NCAP rating with systems that actually work.
The MG 4 is the wife's company car and we have 2 other EVs in the family and the MG4 is by far and away the worst for its safety systems being intrusive and quite a few other things.
She is glad she just has it for 2 years.

 

[NLMGSAN]

NCAP basically does two things. First , they test cars on minimum set of requirements to allow for use on public roads (Whole Vehicle Type Approval). Second, they themselves decided to test cars on an extended set of features related to safety. Both set of tests are scored to provide a total, which in turn defines the number of NCAP stars (to keep things simple).
As long as a single car sufficiently represents all cars of the same brand/type/series, the rating may be considered valid and reliable. But that's also where the problem starts.
Not only is NCAP testing incomplete, systems relying on brand-specific software (not certified) with sensitive and complex hardware feeding the software possibly create a high variety of effects caused by these systems. And some can be plainly opposing the initial aim of the systems: safety.
NCAP should up their level of testing by:

• ensuring they test cars bought at random (not the sponsired ones coming from manufacturers)
• for each type/version/series, test a minimum of 10 from bought in different countries
• extend their testing circumstances to cover minimum requirements (they don't do this right now)
• test properly according to the requirements in the regulations. If a car is not compliant with a regulation but still could get five stars because of the extra number of points: don't provide a rating!

Consumer organisations support NCAP. However, they are denying the problems with sophisticated 'safety related assist systems'. Yes, even some MGs are free of any issue, whether technically, subjectively or both. But that's not a reason to close your eyes and do nothing. If any system sold as safery enhancing does the opposite for some, it should be taken seriously. Currently, it is not.

 

[ReintjeWA]

I don’t disagree that a system should work as advertised or intended. And I don’t disagree that the EAB could cause a dangerous situation when the driver behind is too close or slow to react. In my personal experience though, I didn’t even notice the pedestrian stepping out from the bus stop, and although they didn’t step out into the road, I can’t fault the car for thinking they were about to. And if they had, the car braking as it did could have been the difference between life and death for that person. I don’t think that is inherently flawed to be honest. I also don’t think it is a bad outcome to safe a pedestrian by having the car behind me crash into the back of me. My chances of survival are higher than theirs after all.

I agree the system can, and should, be better, but I also think it’s unrealistic to expect a perfect system, especially considering how much we’ve paid for these cars. As much as I love my MG4, I’m under no illusion it is as good quality as say a Porsche Taycan.

 

[LenEV2016]

I don’t disagree that a system should work as advertised or intended. And I don’t disagree that the EAB could cause a dangerous situation when the driver behind is too close or slow to react. In my personal experience though, I didn’t even notice the pedestrian stepping out from the bus stop, and although they didn’t step out into the road, I can’t fault the car for thinking they were about to. And if they had, the car braking as it did could have been the difference between life and death for that person. I don’t think that is inherently flawed to be honest. I also don’t think it is a bad outcome to safe a pedestrian by having the car behind me crash into the back of me. My chances of survival are higher than theirs after all.

I agree the system can, and should, be better, but I also think it’s unrealistic to expect a perfect system, especially considering how much we’ve paid for these cars. As much as I love my MG4, I’m under no illusion it is as good quality as say a Porsche Taycan.

It shouldn't really matter what you pay, if a car is supplied with specified features they should all work as advertised.
Of course more expensive cars may do things better, although there is an element of just paying for a badge

 

[Rolfe]

I don’t disagree that a system should work as advertised or intended. And I don’t disagree that the EAB could cause a dangerous situation when the driver behind is too close or slow to react. In my personal experience though, I didn’t even notice the pedestrian stepping out from the bus stop, and although they didn’t step out into the road, I can’t fault the car for thinking they were about to. And if they had, the car braking as it did could have been the difference between life and death for that person. I don’t think that is inherently flawed to be honest. I also don’t think it is a bad outcome to safe a pedestrian by having the car behind me crash into the back of me. My chances of survival are higher than theirs after all.

I agree the system can, and should, be better, but I also think it’s unrealistic to expect a perfect system, especially considering how much we’ve paid for these cars. As much as I love my MG4, I’m under no illusion it is as good quality as say a Porsche Taycan.

That is pretty much what my car did, except the pedestrian was stepping out on to the road from between two parked cars. In retrospect I don't know whether I clocked him before the car reacted, but didn't react myself because I could see he was going for the driver's door of one of the parked cars rather than heading into the traffic, or if my brain only caught up with all that afterwards. Either way, although I was quite startled, I was quite impressed. I wasn't going very fast at the time, I was moving with urban traffic, so it wasn't quite the shock it might have been.

My conclusion was the same. If the car can do that, and perhaps save someone's life, I am not turning this off. Or at least, I'm not turning it off so long as it doesn't do it for no reason. That was 17 months ago and it never has. Done it for no reason I mean.

 

[tsedge]

Yes, I see that now. I don't know if there's any way to restore them. Stuart might know.

Please post on the Feedback Forum highlighting any missing posts, Stuart won't see these comments otherwise and needs some specifics to investigate (this is what he said when I mentioned the issue).

 

[Rolfe]

I haven't noticed any myself, just noted that others have identified some.

 

[tsedge]

From conversations with Stuart, apparently some were lost in the transition and cannot be recovered, details on the Feedback forum.

 

[fourevah]

Oh! So this does happen. Today, I was at the receiving end of the ghost AEB. Was coming down a hill and turning right in a 20mi zone. Cleared the turn and the very next moment the car triggers AEB. Only a red Ford in the opposite lane and nothing behind (fortunately). My previous car had collision alerts but it never intervened like this. So the phantom alerts were just alerts that could be ignored. New experiences with the car.

 

[fshuk1]

Oh! So this does happen. Today, I was at the receiving end of the ghost AEB. Was coming down a hill and turning right in a 20mi zone. Cleared the turn and the very next moment the car triggers AEB. Only a red Ford in the opposite lane and nothing behind (fortunately). My previous car had collision alerts but it never intervened like this. So the phantom alerts were just alerts that could be ignored. New experiences with the car.

exactly like this for me. Just as i turned right WHAM the car did a stop. The speed was very low because I was turning right coming out of a side road but it is not a nice experience. So there must be something to do with turning right.....

 

[NLMGSAN]

Oh! So this does happen. Today, I was at the receiving end of the ghost AEB. Was coming down a hill and turning right in a 20mi zone. Cleared the turn and the very next moment the car triggers AEB. Only a red Ford in the opposite lane and nothing behind (fortunately). My previous car had collision alerts but it never intervened like this. So the phantom alerts were just alerts that could be ignored. New experiences with the car.

Red Ford? That is always serious trouble.....

Joke aside: the Ford was approaching you. How far away was it approximately?