I'm sorry this is not correct. NCAP Speed Assist testing mandates that the correct speed limit is shown at all times not just when a sign has been past.That’s sounds like it’s behaving like it’s supposed to.
Map based speed limits, overridden by camera recognition = TSA.
What you have (I think) is SLA - where if there is no roadside speed sign, it won’t display anything, as it doesn’t use the map database, just the camera recognition.
There’s a couple of posts on mbclub saying how SLA has picked up the 50 on the rear of a lorry mistakenly. And another saying how clever the SLA is because it knows to ignore the signs that are only meant for HGV’s! So as far as they are concerned, SLA for them works perfectly!
True, but still displayed the limit far more often (well constantly compared to about 30% of the time it seems) than my mercedes.I’m not sure that is true. Satnav based systems don’t normally take into account temporary changes like roadworks which camera based systems are much better at
We can but hopeMy TSA works very well too
In time, someone will come up with an activation hack for the W177
To turn SLA interface ON and OFF you have to press and hold for 6 seconds "Hang-Up" button on your steering wheel. After installation SLA is already ON. When you turn interface ON and OFF alarm will blink to let you know, that mode have changed.www.ebay.co.uk
I got SLA and my showing signs are as macd showing incorrectly many times. Sometimes it shows 140kph on road where it is 50kph with left+right buildings crossroadWhat I don’t understand, is why there are not more people (on this forum, or a Facebook group for example) complaining that their SLA isn’t working correctly?
That is odd. I have been on 3 roads today with national speed limit signs (all single carriageway, but one turns dual carriageway for a mile or so before going back to single) and it def displays 70mph after the sign but after a few minutes of no signs on the road I get no speed displayed anyway.Which is really odd as mostly gives no speed icon after the national speed sign, this might mean that we are all experiencing different errors
|De-restriction sign not recognised despite being very visible|
|30mph icon in 50mph limit|
|70mph icon in 30mph limit|
|No Speed Icon in 30mph Limit|
|70mph icon disappears on motorway|
|70mph icon disappears at junction M32/M4|
|No speed icon on M4|
|70mph icon returns for no apparent reason|
|40mph icon disappears at traffic lights and stays off|
|70mph icon in 40mph limit|
|30mph icon with arrow|
|40mph icon on motorway|
|Doesn't respond to temp de-restriction sign|
|De-restriction icon not 60mph|
|70mph icon on 3 lane road|
|Incorrect 70mph speed icon disappears for 2 seconds|
|70mph icon does not change to 60mph when dual carriageway ends|
|50mph icon disappears|
|40mph icon disappears|
|30mph icon disappears|
Hard to keep track of whats been said before (don;t have time to go through all the threads at the moment.) but I have my car going in on the 18th August. I mentioned that the speed disappears from my dash like in your video. I was told that shouldn't happen and there should always be a speed displayed even with SLA which clearly isn't happening so he thinks there is a fault. not sure if the person I spoke to was getting it confused with the Traffic sign assist or if it is actually supposed to be displayed all the time but clearly we aren't getting that.This is the video I sent to Mercedes CEO Gary Savage, I'm posting it here as it might be of interest to some as it could help those who are experiencing errors with their SLA to see that they are not alone and it might also help those who have TSA to understand just how frustrating SLA errors are for those of us who did not understand that we needed to specify the Advanced Navigation pack when we bought our cars if we wanted SLA to work correctly
The video shows an edited version of a one hour drive in and around my home town. It shows 20 instances where Speed Limit Assist shows the wrong speed icon, this means that Speed Limit Assist shows the wrong speed icon on average every 3 minutes and for at least 25% of the drive.
The video lasts 14 minutes but if you just want to skip to any specific error this might help you
1 00:20 De-restriction sign not recognised despite being very visible 2 00:50 30mph icon in 50mph limit 3 01:30 70mph icon in 30mph limit 4 02:55 No Speed Icon in 30mph Limit 5 03:25 70mph icon disappears on motorway 6 04:45 70mph icon disappears at junction M32/M4 7 05:00 No speed icon on M4 8 05:55 70mph icon returns for no apparent reason 9 06:10 40mph icon disappears at traffic lights and stays off 10 07:25 70mph icon in 40mph limit 11 08:10 30mph icon with arrow 12 08:55 40mph icon on motorway 13 10:15 Doesn't respond to temp de-restriction sign 14 10:40 De-restriction icon not 60mph 15 10:53 70mph icon on 3 lane road 16 11:17 Incorrect 70mph speed icon disappears for 2 seconds 17 11:55 70mph icon does not change to 60mph when dual carriageway ends 18 12:40 50mph icon disappears 19 13:10 40mph icon disappears 20 13:57 30mph icon disappears
And RAC & AA patrol men stood by the side of the road & saluted you if there was a speed check ahead 👴 😱 🤣Of course, I’m old enough to remember when you had to use your eyes to look for the speed limit. I remember being asked by my instructor on several occasions what the current speed limit was - no ‘assist’ in those days