Throttle neutered after exhaust sound update
Member
Joined: Jul 2010
Posts: 109
Likes: 15
2017 C63s Coupe
So, there are ALWAYS multiple software versions for car xCU computers as a result of varying manufacturers for parts, locations, revisions of parts, etc.
In today's automotive space, computers make it easy to track the specifics of those requirements based on VIN back to what was put into the cars during manufacture, so they know what versions of software are appropriate.
In MY case, I wasn't necessarily complaining about hard shifting, but the exhaust note was different from the vehicle I test drove.
My car was also delivered in Nov2017 and is the same - a C63S coupe.
The issue for me is, the software didn't apply to my VIN.
I kinda sweet talked my way into getting it with the dealer....
I now regret, wholeheartedly, this decision.
I believe my problem is that the software doesn't apply.... Yes, my car had the "ruined" exhaust note from the factory, but they hadn't yet developed a version for my car, I suspect.
I don't know if they were even working on one for my vehicle, but alas, I'm now screwed....
That's just one theory.
The other theory is the this update helped to manifest an underlying problem in the vehicle through the changes it incorporates.
In today's automotive space, computers make it easy to track the specifics of those requirements based on VIN back to what was put into the cars during manufacture, so they know what versions of software are appropriate.
In MY case, I wasn't necessarily complaining about hard shifting, but the exhaust note was different from the vehicle I test drove.
My car was also delivered in Nov2017 and is the same - a C63S coupe.
The issue for me is, the software didn't apply to my VIN.
I kinda sweet talked my way into getting it with the dealer....
I now regret, wholeheartedly, this decision.
I believe my problem is that the software doesn't apply.... Yes, my car had the "ruined" exhaust note from the factory, but they hadn't yet developed a version for my car, I suspect.
I don't know if they were even working on one for my vehicle, but alas, I'm now screwed....
That's just one theory.
The other theory is the this update helped to manifest an underlying problem in the vehicle through the changes it incorporates.
Thread Starter
Super Member
Joined: Dec 2011
Posts: 557
Likes: 71
2016 C63S
Thread Starter
Super Member
Joined: Dec 2011
Posts: 557
Likes: 71
2016 C63S
I have read through this whole thread and I am intrigued by the findings. My car was delivered in November of 2017 its a the 2017 C63s coupe; I had the transmission software upgrade done to fix the hard shifts from 3rd to 4th. I am not aware if i had any other software updates but i am sure they did them all since the car needed the trans update. I have felt no difference in performance and if I stomp on the gas from a stop in sport or sport + with traction on sport the tires will definitely spin. Also if going around a corner at low speed and i goose the gas the rear end breaks free easily. What would cause some of our cars to loose performance from this upgrade to the ECU and not all of them?
Any chance you could take a video or two of your car from a standstill at full throttle? Something to compare to the above ones. i.e. Sport+ with ESC on, then with ESC off, floored through first gear into second. Actual speed helps because we can hear the tires breaking loose and get a sense of the speed, and then slow motion helps to really see when traction breaks and when boost builds.
Senior Member
Joined: Apr 2017
Posts: 490
Likes: 29
From: California
C63S Sedan
So, there are ALWAYS multiple software versions for car xCU computers as a result of varying manufacturers for parts, locations, revisions of parts, etc.
In today's automotive space, computers make it easy to track the specifics of those requirements based on VIN back to what was put into the cars during manufacture, so they know what versions of software are appropriate.
In MY case, I wasn't necessarily complaining about hard shifting, but the exhaust note was different from the vehicle I test drove.
My car was also delivered in Nov2017 and is the same - a C63S coupe.
The issue for me is, the software didn't apply to my VIN.
I kinda sweet talked my way into getting it with the dealer....
I now regret, wholeheartedly, this decision.
I believe my problem is that the software doesn't apply.... Yes, my car had the "ruined" exhaust note from the factory, but they hadn't yet developed a version for my car, I suspect.
I don't know if they were even working on one for my vehicle, but alas, I'm now screwed....
That's just one theory.
The other theory is the this update helped to manifest an underlying problem in the vehicle through the changes it incorporates.
In today's automotive space, computers make it easy to track the specifics of those requirements based on VIN back to what was put into the cars during manufacture, so they know what versions of software are appropriate.
In MY case, I wasn't necessarily complaining about hard shifting, but the exhaust note was different from the vehicle I test drove.
My car was also delivered in Nov2017 and is the same - a C63S coupe.
The issue for me is, the software didn't apply to my VIN.
I kinda sweet talked my way into getting it with the dealer....
I now regret, wholeheartedly, this decision.
I believe my problem is that the software doesn't apply.... Yes, my car had the "ruined" exhaust note from the factory, but they hadn't yet developed a version for my car, I suspect.
I don't know if they were even working on one for my vehicle, but alas, I'm now screwed....
That's just one theory.
The other theory is the this update helped to manifest an underlying problem in the vehicle through the changes it incorporates.
My car is a NOV 2017 Sedan build and my dealer said the same thing with no update available.
Now im glad I didnt push them to update.
Super Member
Joined: Dec 2014
Posts: 842
Likes: 64
From: Northern NJ
2015 E550 Coupe
So, there are ALWAYS multiple software versions for car xCU computers as a result of varying manufacturers for parts, locations, revisions of parts, etc.
In today's automotive space, computers make it easy to track the specifics of those requirements based on VIN back to what was put into the cars during manufacture, so they know what versions of software are appropriate.
In MY case, I wasn't necessarily complaining about hard shifting, but the exhaust note was different from the vehicle I test drove.
My car was also delivered in Nov2017 and is the same - a C63S coupe.
The issue for me is, the software didn't apply to my VIN.
I kinda sweet talked my way into getting it with the dealer....
I now regret, wholeheartedly, this decision.
I believe my problem is that the software doesn't apply.... Yes, my car had the "ruined" exhaust note from the factory, but they hadn't yet developed a version for my car, I suspect.
I don't know if they were even working on one for my vehicle, but alas, I'm now screwed....
That's just one theory.
The other theory is the this update helped to manifest an underlying problem in the vehicle through the changes it incorporates.
In today's automotive space, computers make it easy to track the specifics of those requirements based on VIN back to what was put into the cars during manufacture, so they know what versions of software are appropriate.
In MY case, I wasn't necessarily complaining about hard shifting, but the exhaust note was different from the vehicle I test drove.
My car was also delivered in Nov2017 and is the same - a C63S coupe.
The issue for me is, the software didn't apply to my VIN.
I kinda sweet talked my way into getting it with the dealer....
I now regret, wholeheartedly, this decision.
I believe my problem is that the software doesn't apply.... Yes, my car had the "ruined" exhaust note from the factory, but they hadn't yet developed a version for my car, I suspect.
I don't know if they were even working on one for my vehicle, but alas, I'm now screwed....
That's just one theory.
The other theory is the this update helped to manifest an underlying problem in the vehicle through the changes it incorporates.
Just trying to think of any possible way around the situation you're in. As an aside, MB really seems to need to disclose all aspects of what any firmware / software update is intended to do to our vehicles, both good and bad. At least in much more detail than they apparently do now. So then the vehicle's owner can decide for themselves if they want a specific update installed.
Newbie
Joined: Jul 2017
Posts: 9
Likes: 1
From: Sydney, australia
W205 c63s edition 1 coupe
Sounds like this is a massive issue, especially for people like myself that have only recently bought a c63.
I have an oct/2016 build coupe edition 1 and from comparisons off youtube and this forum, sounds like my exhaust doesn't quite make the same number of crackles and pops in sports plus mode.
I'm currently on about 2000kms and will be going into the dealers to get my diff oil changed at 3000 which I would imagine is going to be in the next 2 weeks. I've driven 2000kms in 8 days of ownership.... another 1000kms is going to fly by!
I will try and get software versions of whats currently installed on my car and then compare with the new...
will also try and get some videos of WOT pulls from a stand still.... not sure if tyre spin can be heard inside the cabin though...
My exhaust sounds have been such a disappointment from day one that I've been looking at aftermarket options already! Doesn't help my mate has a c43 with the perf exhaust and sounds MUCH louder then my own car....
I have an oct/2016 build coupe edition 1 and from comparisons off youtube and this forum, sounds like my exhaust doesn't quite make the same number of crackles and pops in sports plus mode.
I'm currently on about 2000kms and will be going into the dealers to get my diff oil changed at 3000 which I would imagine is going to be in the next 2 weeks. I've driven 2000kms in 8 days of ownership.... another 1000kms is going to fly by!
I will try and get software versions of whats currently installed on my car and then compare with the new...
will also try and get some videos of WOT pulls from a stand still.... not sure if tyre spin can be heard inside the cabin though...
My exhaust sounds have been such a disappointment from day one that I've been looking at aftermarket options already! Doesn't help my mate has a c43 with the perf exhaust and sounds MUCH louder then my own car....
Thread Starter
Super Member
Joined: Dec 2011
Posts: 557
Likes: 71
2016 C63S
Sounds like this is a massive issue, especially for people like myself that have only recently bought a c63.
I have an oct/2016 build coupe edition 1 and from comparisons off youtube and this forum, sounds like my exhaust doesn't quite make the same number of crackles and pops in sports plus mode.
I'm currently on about 2000kms and will be going into the dealers to get my diff oil changed at 3000 which I would imagine is going to be in the next 2 weeks. I've driven 2000kms in 8 days of ownership.... another 1000kms is going to fly by!
I will try and get software versions of whats currently installed on my car and then compare with the new...
will also try and get some videos of WOT pulls from a stand still.... not sure if tyre spin can be heard inside the cabin though...
My exhaust sounds have been such a disappointment from day one that I've been looking at aftermarket options already! Doesn't help my mate has a c43 with the perf exhaust and sounds MUCH louder then my own car....
I have an oct/2016 build coupe edition 1 and from comparisons off youtube and this forum, sounds like my exhaust doesn't quite make the same number of crackles and pops in sports plus mode.
I'm currently on about 2000kms and will be going into the dealers to get my diff oil changed at 3000 which I would imagine is going to be in the next 2 weeks. I've driven 2000kms in 8 days of ownership.... another 1000kms is going to fly by!
I will try and get software versions of whats currently installed on my car and then compare with the new...
will also try and get some videos of WOT pulls from a stand still.... not sure if tyre spin can be heard inside the cabin though...
My exhaust sounds have been such a disappointment from day one that I've been looking at aftermarket options already! Doesn't help my mate has a c43 with the perf exhaust and sounds MUCH louder then my own car....
Member
Joined: Sep 2016
Posts: 112
Likes: 7
C63S AMG Coupe
My dealer specifically told me there was no way to back out an update. End of story. No chance in hell they would even budge on that.
I did not go in for the exhaust update I went in for the trans update. They updated my car with everything. My car feels slower now. HP and TQ curve comparison might help. Yeah we all understand turbo lag etc. but it feels different end of story.
The dealer let me drive a brand new car. Felt the same as mine. My dealer said he would be opening up a TIPS report but now I can't get any information from them on the case number. MB customer service was in contact with them and they gave her some runaround answer saying that I had agreed to drive my car around more to see if it got any better.
That was not the conversation I had at all. I've had the car for 2k miles after the update, it's not gonna change. Just sad they really screwed up the beast of the car this used to be and new customers don't even know what they are missing.
I did not go in for the exhaust update I went in for the trans update. They updated my car with everything. My car feels slower now. HP and TQ curve comparison might help. Yeah we all understand turbo lag etc. but it feels different end of story.
The dealer let me drive a brand new car. Felt the same as mine. My dealer said he would be opening up a TIPS report but now I can't get any information from them on the case number. MB customer service was in contact with them and they gave her some runaround answer saying that I had agreed to drive my car around more to see if it got any better.
That was not the conversation I had at all. I've had the car for 2k miles after the update, it's not gonna change. Just sad they really screwed up the beast of the car this used to be and new customers don't even know what they are missing.
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Super Member
Joined: Feb 2017
Posts: 681
Likes: 90
From: SWF
2020GLC63
Serious bro i know what your thinking, honestly i'm not fully happy with my c63s either. I feel in my heart its a dog, the stock turbo's are running out of breathe upstairs. Its great to have torque but it falls on its face and more pronouned with you do a flash/tune. The trans isn't the best either. I know our c63s are only 80k new but you get a better drive tran in a M5 or M6 IMO, more power and better trans for comparison. Shame i do not like the way those drove or look heck i actaully owned a M6 4.4L both to compare power feel and they are beasts especially when tuned, love the DCT's as well.
Have you thought about trading her in for something new / different?
Have you thought about trading her in for something new / different?
Last edited by brad65ford; Jul 21, 2017 at 09:38 AM.
Super Member
Joined: Jun 2015
Posts: 643
Likes: 92
From: Houston, TX
'15 C63S
So, there are ALWAYS multiple software versions for car xCU computers as a result of varying manufacturers for parts, locations, revisions of parts, etc.
In today's automotive space, computers make it easy to track the specifics of those requirements based on VIN back to what was put into the cars during manufacture, so they know what versions of software are appropriate.
In MY case, I wasn't necessarily complaining about hard shifting, but the exhaust note was different from the vehicle I test drove.
My car was also delivered in Nov2017 and is the same - a C63S coupe.
The issue for me is, the software didn't apply to my VIN.
I kinda sweet talked my way into getting it with the dealer....
I now regret, wholeheartedly, this decision.
I believe my problem is that the software doesn't apply.... Yes, my car had the "ruined" exhaust note from the factory, but they hadn't yet developed a version for my car, I suspect.
I don't know if they were even working on one for my vehicle, but alas, I'm now screwed....
That's just one theory.
The other theory is the this update helped to manifest an underlying problem in the vehicle through the changes it incorporates.
In today's automotive space, computers make it easy to track the specifics of those requirements based on VIN back to what was put into the cars during manufacture, so they know what versions of software are appropriate.
In MY case, I wasn't necessarily complaining about hard shifting, but the exhaust note was different from the vehicle I test drove.
My car was also delivered in Nov2017 and is the same - a C63S coupe.
The issue for me is, the software didn't apply to my VIN.
I kinda sweet talked my way into getting it with the dealer....
I now regret, wholeheartedly, this decision.
I believe my problem is that the software doesn't apply.... Yes, my car had the "ruined" exhaust note from the factory, but they hadn't yet developed a version for my car, I suspect.
I don't know if they were even working on one for my vehicle, but alas, I'm now screwed....
That's just one theory.
The other theory is the this update helped to manifest an underlying problem in the vehicle through the changes it incorporates.
Now im glad I didnt push them to update.
I think the problem with both of your cars is that they haven't been built yet.
Thread Starter
Super Member
Joined: Dec 2011
Posts: 557
Likes: 71
2016 C63S
Newbie
Joined: Jul 2017
Posts: 9
Likes: 1
From: Sydney, australia
W205 c63s edition 1 coupe
I've recently taken the plunge and asked for a software update on the transmission as I've had the usual 3rd to 4th up shift clunk. The tech at the dealership advised that doing the software for the trans only and preventing engine software updates were not possible for him. Went with doing both and am happy with the result. There's definitely more noise and for me, I don't think I'm having any throttle issues as I'm losing traction all the time at most revs with traction on sports plus mode. I'm only ever in comfort mode when warming the car up in the morning for 10mins or so.... and I don't let it rev higher than 2k rpm for these warmups... so can't really say whether it's the same.
I'm in Sydney Australia, and mines a coupe. The tech also reckons the software updates for the sedan and coupe are different.... maybe that's where the issue is?
I'm in Sydney Australia, and mines a coupe. The tech also reckons the software updates for the sedan and coupe are different.... maybe that's where the issue is?
Junior Member
Joined: Sep 2015
Posts: 20
Likes: 0
From: ATL
'17 C63 S Coupe
I brought my coupe in a few weeks ago for the rough 3rd to 4th gear change and the applicable software update was applied. The exhaust is much louder than it was prior to the update and no issues with throttle response.
Thread Starter
Super Member
Joined: Dec 2011
Posts: 557
Likes: 71
2016 C63S
The problem with the dealers is that this is the new norm. This is what's loaded on all the new cars. If you buy a 2017+, it will seem like that's how the car was meant to be and you won't know what you're missing.
MBWorld Fanatic!
Joined: Nov 2015
Posts: 1,095
Likes: 52
C63s
Originally Posted by ezatnova
The problem with the dealers is that this is the new norm. This is what's loaded on all the new cars. If you buy a 2017+, it will seem like that's how the car was meant to be and you won't know what you're missing.
MBWorld Fanatic!
Joined: Dec 2012
Posts: 1,537
Likes: 372
From: Austin, TX
2017 Porsche 911 C4
When are you jumping on a dyno? Posted plenty of stock power curves to compare to...
ezatnova - my Coupe is a 2017 and didn't have the updated software, so I wouldn't say it's the new norm. All 2018's I assume will have the most recent software, but many early build 2017's were definitely affected with the old exhaust software.
ezatnova - my Coupe is a 2017 and didn't have the updated software, so I wouldn't say it's the new norm. All 2018's I assume will have the most recent software, but many early build 2017's were definitely affected with the old exhaust software.
Thread Starter
Super Member
Joined: Dec 2011
Posts: 557
Likes: 71
2016 C63S
When are you jumping on a dyno? Posted plenty of stock power curves to compare to...
ezatnova - my Coupe is a 2017 and didn't have the updated software, so I wouldn't say it's the new norm. All 2018's I assume will have the most recent software, but many early build 2017's were definitely affected with the old exhaust software.
ezatnova - my Coupe is a 2017 and didn't have the updated software, so I wouldn't say it's the new norm. All 2018's I assume will have the most recent software, but many early build 2017's were definitely affected with the old exhaust software.
Junior Member
Joined: Jan 2017
Posts: 69
Likes: 6
C63S Coupe 2017
My coupe was produced in May and it most certainly has the update. It feels somewhat neutered for a 500 hp V8. I'm coming from an M3 and that car felt more powerful in lower gears even though it has 70 less of both hp and torque.
