theclutch

I just got a recall notice #17V654 where, "during certain driving scenarios with high performance demands and low traction, the rear axle differential flange might become over-stressed and fracture. As a result, the vehicle may stall, increasing the risk of a crash."

The notice went on to state that the FIX for this was, "dealer will update the ESP and chassis control unit software on the affected vehicles."...

This sounds like they are simply going to increase the ESP control so that you can't break the tires loose as much? Hmmm....

Can anyone in the know shed more light on this?

dwaldi

I haven't gotten a recall notice in the mail yet -- only saw this in the Mercedes Me app. Is it possible that not all VINs are at risk of the failure? I'm a 2016 C63 S sedan.

JoelSolid

I saw this on the Mercedes Me app as well. I had the same thoughts on the ESP update. I was planning on holding off until more information is available.

msd3075

https://mbworld.org/forums/c63-c63s-...rque-peak.html

RDOCA

I received the letter but have not gone in yet. I also have a 2016 C63S sedan.

Modio1234

Heard about it but have no Intrest to get it done. Sounds like they are going to neuter off the line performance again so I will take my chances.

black63s

I jsut had it done and it actually does not neuter the car off the line. What it appears to have done is make traction control less sporadic in kicking in and jerking the car to halt wheel spin. It seems the car actually lets the wheels break free a little more than it did before with traction fully on. I drive my car very hard all the time and can assure you I would be the first one to say if it neutered the car.

theclutch

Oh wait... so just to confirm, it ALLOWS the tires to break free even more so than before the recall update? That actually doesn't sound as bad.

black63s

Im not 100% sure but it does appear so. Also if you are someone that tracks your car or does hard launches I would definitely recommend doing it.

ItalianJoe1

The updated software is designed to reduce wheelhop, not reduce power or launching speed, so it makes sense that the ESP logic is slightly less aggressive. As long as you aren't getting abrupt intervention, there shouldn't be a risk of breaking parts.

AMGSuperSaloon

I totally agree with what is said here. I just had the update done as well and the ESP seems to be smoother and no more intrusive than it was in the past. Definitely not neutered in my case

DSawyer63

I'm pretty sure all the people that have had their mounting flange fracture at the drag strip had ESP turned completely off so I'm not sure what help the update is going to be.

dforman15

I just had it done. There is also a suspension software update that is done at the same time. My car is a 2016 model. I'll play around with the car on my way home from work and give an update as to what I think

dforman15

I had a chance to play around with my car last night after getting the software update and I like the car so much more. The car is in no way neutered off the line for whose who were worried. In my opinion the update allows you to have more fun with the car. When the traction control does kick in, its a lot less intrusive. Maybe that's what they were trying to accomplish. Maybe they had to much traction control dialed in and it was putting to much stress on the diff. I don't know just my 2 cents.

auditoamg

No neutering here....

SuperNik

My rear diff mount snapped a few months ago. Accelerated hard out of a corner and the rear diff casing snapped. It spat out a driveshaft and some bearings. I assume I wasn't the only one if they're recalling for a esp software update.
Also, the newer esp software is much better than before in sport mode.

RDO247

Does anyone that had these updates done have a tuned ECU?

Will either of these updates affect an ECU tune?

OrientBlue3

RDO247

superstarR

Do you think it’s possible to get them to update the Engine and exhaust software update for the better sounding exhaust at the same time?

OrientBlue3

kfehling

My car is going in on Tuesday for this recall and and I will report back if I notice any difference.

Kurt

msd3075

I just had the recall update performed on my car. I wouldn't say the car is "neutered" by any means, but it definitely has a different feel to it. Not bad, not wrong, just different.

I drive with my car in Individual mode 99.9% of the time with the ESP set to Sport, so all I can really comment on is how this setting has changed. Before, if the rear end broke traction (either in a slide or going straight), it would let the slide happen pretty much unaltered (or at least it felt like that) but then would somewhat abruptly slow you down. It was no where near as abrupt as with ESP fully on, but it was still noticeable. If you didn't hit that hard slow-down point (ie. you drove within your limits or just slightly over), the ESP Sport setting seems almost as if it really wasn't doing all that much. Push a bit further, and you'd feel it kick in. And when it kicked in, it felt more like an on/off switch than true gradually application of ESP.

With the new software, I swear it feels like it's intervening right from the start. Instead of having the on/off feel it previously did, it now feels like it's able to partially apply ESP as needed. If anything it makes the driver look like they know what their doing when really it's doing the work for you.

This is just from the limited time I've had with the car (picked it up yesterday afternoon), so don't quote me completely on all this until I have more seat time with the new software.

And for those that might ask, my car is a '15 C63S sedan that still has all the original software except for this new recall update.

VaserC63S

My car was updated as well when I went in for brakes and tires at same time. I needed pads at 9800 miles! I drive in individual comfort in sports+. Around town I'd always be in comfort mode. After the update its more pleasant around town in individual sports+ too. I just assumed the better drive was due to the tires because I had the Dunlop Maxx and they have horrible traction in cold temperatures and ride like crap. Anyway new Pilot A/S 3+ on, and the car is just smooth, and I don't feel ESP at all. But because I have traction now, I can't tell what the deal is. Safe to say it did no harm at all and may have helped a lot.

amg8

I have not gotten this recall notice so I am guessing MY17 does not require it?