Hey everyone,

I have an S-Class S580 2023 that didn't come with rear-axle steering or traffic stop light notification from the factory. I'm wondering if it's possible to add these features officially through Mercedes.

Has anyone done this or know if Mercedes offers an official retrofit?

Thanks!

 

I don't think you can add RSA if hardware doesn't exist, but @EleBest added 10 degrees rear steering to those who have 4.5 degrees. I feel that traffic stop light notification can be added (I doubt it has anything to do with hardware). Get with him, he's the only one who knows how to code W223 here.

I never heard of any case where Mbenz offered adding hardware/options that are not on the original build of the car, even if you pay them.

 

Official retrofit/upgrade from Mercedes are all listed in your mercedes me app. check the mercedes me store.

RAS can be retrofitted, but cost is high, and you need find a good workshop to do hardware installation.

Can explain a bit about the "Traffic Stop Light" you mentioned? you mean stop sign?

SSA (Stop Sign Assist) is useful in USA.

 

No offense to the OP, but if RAS is really important to you, you would be tremendously better off trading cars. Frankly, I had an “Executive Line” 2022 S580 with the 10 degree RAS. I then went back to a 2020 S560 without it and really, it was no big deal to me.

 

I loved the 10 degree, makes it easier in the tight lots, and in self-parking mode it can shoehorn itself into spots that are literally impossible to get into without it. Downsides were that it spoiled me. I do drive a car without it now, IMO it's not the end of the world, but it's a real add if you can get it.

 

I had an EQS SUV loaner with it (has around 8" in additional length and 1" wider than my GLE) and it "drove" smaller than my GLE. It felt svelte. Like you said, very easy to maneuver around tight spaces.

 

Loved the RAS in our BMWs. It's a must have. Newer Benz have RAS, and whenever it's available as an option, it will always be a on my must-have list. Maneuvering in a parking lot is not my concern, but it is more about how smooth it makes the car on turns and roundabouts and also during lane changes on highway - it's very noticeable (at least it was in all my BMWs with rear wheel steering / dynamic handling pkg).. I test drove only a few W223s, but one of them was for an extended period of time close to a week, and I certainly consider the RAS as a must-have. RAS was noticeably a better driving experience despite the short time I spent testing different W223 variants.

 

If the car has the 4.5 degree RAS, it's possible to get it reprogrammed to do the 10?
I assume a 21" wheel is too big to do that? So one would need to get a 20" or 19" to accommodate that?

 

Yes it is. Message @EleBest .

 

Yeah, at least one guy posted that he had done it. The forum wisdom at the time was that the staggered AMG wheels would have clearance issues. If I recall correctly, the guy said he did it with the 20s; it's possible a search would turn that up.

 

The rear wheel steering option is a fantastic thing to have. It truly shortens the car significantly and on the highway when you’re overtaking the manoeuvrability of the vehicle increases dramatically. The traffic light camera well interesting I rarely ever use. Frankly it’s more of an annoyance than anything else.

 

Rear wheel steering sounds expensive when it fails and requires service.

 

I totally agree about the real wheel steering. My S580 does not drive much bigger than me E550.

 

I had multiple cars in a row with rear wheel, the 10 degree is much more than you might think, compared to the 4ish you usually get.

It's not a small change in parking lot action. Those times when you can get in going forward, but you're a little cockeyed in the spot because you didn't have enough room to get straight between the lines; with 10 the rear usually moves over enough as you turn in to get the car squared up without backing out and going back in to get it aligned.

I can go on and on with that, maybe others will see it different, but I'm no stranger to rear wheel and was very surprised by how much 10 added to the equation.

There are some oddities: The car can parallel park itself very well, but it's a little slow, so you'll do most of it yourself. When you're backing in and get to where you're going to flop the front in, as the front guess in, the rear is counter-steering and moves away from the curb. Takes a little different style to get it in there; you pick it up, it's just different.

The car also has an unusual feel to it at low speed, where it almost feels like the rear is falling out toward the side. It's hard to describe, and I never noticed it with the 4 degree stuff.

One thing about the car parking itself, it can get where no human can, it's almost laughable the doors it's willing to shoehorn itself into, another thing that catches you by surprise. If the car parks itself, you can also have the car take you out. Ever parallel and came back to the car to find yourself blocked in? The car can crab sideways going forward and in reverse, over and over, until it gets itself out. I did this in spot outside a coffee shop, with many spectators wowed over my mad skills. Of course it was all Mercedes, but know one needs to know.

Seriously, the 10 degree is probably one of the best bits of engineering on the car. It really works well, and adds more than I thought it would. Much more.

 

Feel free to contact us to get your RAS upgrade to RAS+: 4.5° to 10° by coding only:

it works perfect on all tyre size below 21 inch (including 21inch)


whatsapp:
https://wa.me/6597335000

 

Will doing these changes to coding cause any issues on an S580 with years left on the warranty?
Would they even to be able to tell it was done?
And will the standard 21" wheels work with the 10 degree turning?

 

Totally no issue for 21 inch wheel, even if it is at Max 10 degree, still got plenty of space, once it is done you can see the space by yourself.

 

From MB Customer Service:

"I am more than happy to assist you with you traffic light services. I understand how crucial it is to have access to the features Mercedes has to offer.

I apologize for the inconvenience this has caused you this far. I am reaching out to you with an update from our tier two team. They have confirmed the traffic light service has been sun downed and is no longer available."

 

TS: If you mean Traffic Light Assist: Yes it is available in USA, we did this coding for our USA customer quite often:







there is another type of Traffic Light Assist like the one in China in the video below, might not be available in USA or available in very limited region of big cities, as it need all traffic lights are all connected with low latency network.

 

I'm not sure, but I think he's looking for the service that gives you the timing?