FORWARD COLLISION AVOIDANCE - not working

[Warden]

The cardboard box has already been tested, see Gadgetnutter’s response on this thread.

Yes I know it has, I meant try it on my car, to check if it's working on mine before it's tested for real (hopefully never)

 

[deats01]

ok let me know how it goes, I’m hoping you prove me wrong

 

[tsedge]

Collision avoidance systems are not foolproof. They may detect and save you, they may not. I would certainly not recommend anyone depend on the car stopping itself in all situations.

I tend to get false positives with my MG4 and to avoid it slamming the brakes on, I set it to Alert only, so I still get warnings.

 

[Gadgetnutter]

I agree, I used to get lots of warning beeps in my FL5 (cars on sharp bends cars coming from the left at junctions etc), but I haven't had one in my S5. So either the system is vastly improved or it isn't working, might have to try the large cardboard idea.

Tried the large cardboard box idea and basically flattened it with no warnings at all

Collision avoidance systems are not foolproof. They may detect and save you, they may not. I would certainly not recommend anyone depend on the car stopping itself in all situations.

I tend to get false positives with my MG4 and to avoid it slamming the brakes on, I set it to Alert only, so I still get warnings.

My previous Kia was exactly the same and I did just that..have it to alert only.
My worry with the S5 is that I've not had a single alert...even when I had a near miss and I am 100% sure my Kia would have alerted me dozens of times in the same situations..

 

[deats01]

Collision avoidance systems are not foolproof. They may detect and save you, they may not. I would certainly not recommend anyone depend on the car stopping itself in all situations.

I tend to get false positives with my MG4 and to avoid it slamming the brakes on, I set it to Alert only, so I still get warnings.

No one is saying they are foolproof. We are suggesting the MGS5 FCA does not work at all, no alert, no stopping….

 

[tsedge]

No one is saying they are foolproof. We are suggesting the MGS5 FCA does not work at all, no alert, no stopping….

Understood.

Am I right that the MGS5 doesn't have a front radar and that it is a vision system that does the detection? Suggesting then it is a software problem.

 

[Gadgetnutter]

Understood.

Am I right that the MGS5 doesn't have a front radar and that it is a vision system that does the detection? Suggesting then it is a software problem.

Well, there are no front parking sensors
Not clear if there are hidden radar sensors behind the grill

 

[Alb]

There are no forward radar sensors.

 

[tsedge]

There are no forward radar sensors.

Right, so it isn't comparable with the MG4 then. Vision-based systems are less reliable than radar and less mature, but many manufacturers seem to be adopting them.

 

[deats01]

The ACC works ok, which suggests it should work… hoping they can sort it with a software update soon.

 

[Warden]

ok let me know how it goes, I’m hoping you prove me wrong

I'm now convinced this is not working on mine. I set it to high and braking put some boxes in front of the garage door and approached at 10 mph not a bleep and no braking, I slammed the brakes on and stopped just before the boxes, tried it again with it set to alert and high still no beeps. My previous fl5 would have reacted long before I hit the brakes. Will be discussing this with the dealer.

 

[deats01]

Thanks for the info… I’m pretty sure mine is the same…. I think it’s fare to assume that this is a common issue. It’ll be interesting to hear what their response is. I’m guessing this is required to achieve an NCAP 5 rating.

 

[Gadgetnutter]

So my dealer has told me there is nothing they can do, as there are no errors showing and everything is calibrated as it should be.
Apparently, there is no diagnostic test they can run to validate the feature either!!

 

[deats01]

… I guessed as much, typical. Tell them to drive their test car into a wall, that should do it….

The NCAP video seems to show it working
MG MGS5 EV

 

[gus]

I used to have a Mazda and I remember dropping into the local dealers and they were testing out the FCA, they did it with a high viz vest (I guess any vest would do) put onto a broom handle so the holder could stand out the way and they then drove the car at the vest, was really interesting to see it done and each time the car stopped before the vest.

 

[Jim Dewd]

Have just upgraded from ZS to the S5 3 weeks old now and must admit what a transformation in driving experience well pleased but !!
The car is going in next week for hopefully a software update because the Forward Collision Warning system is not working, does seem to be a common issue will let you know if this does rectify it.

 

[TimothyN]

Mine fails occasionally and I think it's condensation on the inside of the windscreen where the camera/sensor is.

 

[dx4100]

The main concern is whether the FORWARD COLLISION AVOIDANCE ASSIST is actually working… this is a major safety concern and my fear is that it’s not working but it’s very difficult to confirm this without driving into something or someone??

These assists are only meant to be assistance. I think its a hard sell to call it a major safety concern.

I find most the features on the car are poor implementations. Lane management is poor and and adaptive cruise control holds you too far back and a few times I had to slam on because it couldn't handle breaking cars on the motorway. My Skoda would of handled it fine.

In the end they are only assistance and backups. A major safety concern would be the breaks not working or steering having issues.

 

[TimothyN]

adaptive cruise control holds you too far back

...in all three modes? I find that 3 is too far, 1 is too close and 2 is Goldilocks just right.

 

[Ian Key]

In heavy traffic on motorways and dual carriageways I prefer to use the speed limiter in manual mode so I can decide my following distance and if I want to quickly nip into the gap in the next lane.