ezatnova

Didn’t see a thread on this yet. Very odd. Hopefully this isn’t yet another update to further numb and neuter the car.

NHTSA Recall Number
17V654
Recall Reported
Oct 16, 2017
Recall Starts
Nov 09, 2017
Status
Recall INCOMPLETE
Component(s)
1710P54C67
Recall Description
SUMMARY
Daimler AG (DAG), the manufacturer of Mercedes-Benz vehicles, has determined that on certain C-Class AMG vehicles (205 platform) high torque peaks in the powertrain might occur under extreme starting maneuvers (full throttle from a stop, Race Start) on slick road surfaces in combination with repeated short-duration rear wheel spin. . As a consequence, a rear axle differential mounting flange might become over-stressed and fracture. If a rear axle mounting flange fractures, the rear axle differential might become mis-aligned and the driveshaft may fail at the rear differential. This would lead to a loss of propulsion and a vehicle stall. Depending on the traffic situation, a vehicle stall might increase the risk of a crash. An authorized Mercedes-Benz dealerwill update the ESP and chassis control units with new software.
CONSEQUENCE
If a rear axle mounting flange fractures, the rear axle differential might become mis-aligned and the driveshaft may fail at the rear differential. This would lead to a loss of propulsion and a vehicle stall. Depending on the traffic situation, a vehicle stall might increase the risk of a crash.
View Customer Letter
Remedies
An authorized Mercedes-Benz dealerwill update the ESP and chassis control units with new software.

ItalianJoe1

Sounds like there are people wheel hopping the car until the diff breaks. MB found a way to prevent that. If people didn't abuse the cars like that, these things wouldn't happen. Who does a race start or full throttle acceleration on a wet road?

HarrySeaward

No recalls coming up for my vehicle on the website.

msd3075

Just did a search using my VIN, and this same recall notice came up (2015 C63S sedan).

My first reaction to this wouldn't be that they "neuter" the car but instead just adjust how abruptly the ESP kicks in when the wheels really go crazy.

The recall says it's an issue with full throttle on slick roads. I vaguely remember a topic on here from a while back where someone had a rear differential fail after ESP kicked in when they had the car high-sided with one rear wheel off the ground. Maybe this is a response to that and other similar issues where ESP abruptly kicking in when the wheelspin is great without much resistance on the tires (wheel off the ground, very slick roads, etc).

ezatnova

yeah, hopefully. Kind of like you’re saying, I think they could accomplish this fix by dialing BACK the ESP, not softening the throttle ramp up.

Even at oartial throttle while while turning on a damp road, the car loses traction and hugely falls on its face when ESP engages. It’s pretty annoying. That might be the same overall reaction the car is exhibiting when people are flooring it on the wet, and it’s a huge shock to the drivetrain.

Again, I just hope they fix it by dialing back the ESP, not the throttle.

fresnobrianb

So I took my car in Monday for a creaking sunroof. I’m running a tune, and this is the first service I’ve had. I instructed my SA not to perform any updates. He texts me today that they got the wind noise to go away but the creaking is from the wires for my dashcam and they did a recall. I text back WHAT RECALL. He says software update for ESP. WTF.

So I know what I’m walking into tomorrow, so you guys think it’s safe to assume the tune was wiped?

To add insult to injury, the freaking creaking sunroof, that creaked waaaay before I put my dash cam in, and the wires running under the door sill trim and could in no way make the sunroof creak, isn’t fixed.

AMGSuperSaloon

Please us posted on what the dealership says. Best of luck

usaviking

I wonder if the recall is related to this: https://mbworld.org/forums/c63-c63s-...nd-update.html

I took delivery of my C63S Coupe in June and it takes a bit of lag to build power from low gears or from a stand still. My car is not part of the recall so it makes me think that my car already has the update. Perhaps the recall is being done to retroactively to apply the same neutered software to any car that was delivered prior to the fix?

ezatnova

Mine had those updates too but still shows the recall as outstanding for my VIN. In fact, both that thread and this one are mine lol.

usaviking

lol, so after this update you'll be neutered and limp.

ezatnova

Isnt that every guy’s dream?

auditoamg

A straight guy?

ItalianJoe1

Try lubricating the sunroof seals yourself, see if that helps. Most of them that make noise, have broken tracks. When your roof if in the vent position or fully open, can you move the glass section up and down at all? Usually the rear sliding points break off, but if only one is broken it can work for a long time without being noticed.

Tune should not be removed, the M/E isn't updated, only the ESP module.

fresnobrianb

Any advice on what to use as a lubricant? It’s pretty solid, doesn’t move or wobble. It’s just the rubber seal when the roof is closed. It was also making some wind noise, and they adjusted that, which fixed it. Tune, as you stated, was not effected.

amg8

This is what I am using on my panoroof https://www.walmart.com/ip/WD-40-Spe...3=2609&veh=sem

Tvall13

Took my car in for a rattling sunroof. They lubed it up and it's been good to go since.

ezatnova

It kills me to contribute to my own thread being completely derailed, but my God, I've had some annoying rattle that I CANNOT find and it just might be my sunroom. I've pressed and mashed everything all around me to no avail...I'll have to try checking UP.

amg8

To know right away if that is the issue, just put your roof on vent position and if the noise goes away, then your rubber seal needs to be lubricated.

ItalianJoe1

A0019894651 is the factory grease we use. That's a big tub, I don't know if it's available in smaller quantities, as that size is probably 100x more than you will ever need in your lifetime.

ItalianJoe1

Exactly. This is a simple test that too many people overlook. Even techs I work with miss this.