Transmission thump and roughness
Thread Starter
Senior Member
Joined: Feb 2013
Posts: 390
Likes: 37
From: Melbourne, Australia
2010 C63 and 2018 GLC63s
Transmission thump and roughness
My 2010 pre facelift has recently developed harshness with the transmission.
Started with there being a bit of "vibration" on cold idle - no longer the quiet car with a great exhaust sound. At first I thought exhaust system but I think the trans may be the cause. Transmission cold engagement from park to drive is now a solid thump and fwd movement. Not as pronounced once you have been driving and everything is up to temp.
Trans was serviced as per log book 18 to 24 months ago.
Done 65K klms/40K miles.
Eurocharged V5 tune.
Any thoughts?
Started with there being a bit of "vibration" on cold idle - no longer the quiet car with a great exhaust sound. At first I thought exhaust system but I think the trans may be the cause. Transmission cold engagement from park to drive is now a solid thump and fwd movement. Not as pronounced once you have been driving and everything is up to temp.
Trans was serviced as per log book 18 to 24 months ago.
Done 65K klms/40K miles.
Eurocharged V5 tune.
Any thoughts?
Thread Starter
Senior Member
Joined: Feb 2013
Posts: 390
Likes: 37
From: Melbourne, Australia
2010 C63 and 2018 GLC63s
Thread Starter
Senior Member
Joined: Feb 2013
Posts: 390
Likes: 37
From: Melbourne, Australia
2010 C63 and 2018 GLC63s
Trending Topics
MBWorld Fanatic!
Joined: Jun 2008
Posts: 4,455
Likes: 31
From: Ny
Anything W/4Wheels
Engine mounts and trans mounts and trans was low on oil.
did a trans service and replaced the mounts and no more noise.
I think all that is due to all the drag racing and having LTH that had to remove the shields for the mounts. 55k miles. did 3 trans service so far.
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
Senior Member
Joined: Oct 2008
Posts: 351
Likes: 25
From: Markham
07 Z06, 2011 c63pp
Transmission thump and roughness
Originally Posted by mthis
In my video.
Engine mounts and trans mounts and trans was low on oil.
did a trans service and replaced the mounts and no more noise.
I think all that is due to all the drag racing and having LTH that had to remove the shields for the mounts. 55k miles. did 3 trans service so far.
Engine mounts and trans mounts and trans was low on oil.
did a trans service and replaced the mounts and no more noise.
I think all that is due to all the drag racing and having LTH that had to remove the shields for the mounts. 55k miles. did 3 trans service so far.
Im thinking about doing one early.
Thread Starter
Senior Member
Joined: Feb 2013
Posts: 390
Likes: 37
From: Melbourne, Australia
2010 C63 and 2018 GLC63s
Reset - did not fix my trans issue but otherwise reawakened performance. Should be an annual exercise.
Video - I could not make out what I was meant to be hearing but I think not.
Simply a delay when you shift to drive and drive engages with a firm thump sound/jerk.
Video - I could not make out what I was meant to be hearing but I think not.
Simply a delay when you shift to drive and drive engages with a firm thump sound/jerk.
Newbie
Joined: Mar 2014
Posts: 8
Likes: 0
C63s Coupe / ML W166
sounds like that?
c63 issues - YouTube
c63 issues - YouTube
Just few hundreds miles ago I had full service, all fluids and filters are new.
So I believe the engine and gearbox mounting ("pillows") should be replaced...
MBWorld Fanatic!
Joined: Jun 2008
Posts: 4,455
Likes: 31
From: Ny
Anything W/4Wheels
I have the same issue. Only when fluids are cold. When I put gearbox on D mode and holding brake, I can hear exacly the same noise and fell like something is knocking.
Just few hundreds miles ago I had full service, all fluids and filters are new.
So I believe the engine and gearbox mounting ("pillows") should be replaced...
Just few hundreds miles ago I had full service, all fluids and filters are new.
So I believe the engine and gearbox mounting ("pillows") should be replaced...
Newbie
Joined: Mar 2014
Posts: 8
Likes: 0
C63s Coupe / ML W166
Super Member
Joined: Aug 2016
Posts: 520
Likes: 45
From: Regina SK
2008 C-230 4Matic Sport
How do you reset a transmission? I have a 2008 C230 4matic. I feel the performance could be a little sportier.
Junior Member
Joined: Sep 2016
Posts: 59
Likes: 4
AMGs
it isn't your transmission ...it's the diff ...my car does something similar ever since i had a wavetrac installed ...anyways MB's looked @ my transmission because i asked and theres nothing wrong with it, it's the diff ..maybe your OEM diff is going bad.
anyways don't worry about it, unless you haven't ever serviced your trans and have slip. I've driven 50,000km+ with the "diff thump" and 0 issues besides the thump when it's cold from P>R>D
anyways don't worry about it, unless you haven't ever serviced your trans and have slip. I've driven 50,000km+ with the "diff thump" and 0 issues besides the thump when it's cold from P>R>D
Thread Starter
Senior Member
Joined: Feb 2013
Posts: 390
Likes: 37
From: Melbourne, Australia
2010 C63 and 2018 GLC63s
it isn't your transmission ...it's the diff ...my car does something similar ever since i had a wavetrac installed ...anyways MB's looked @ my transmission because i asked and theres nothing wrong with it, it's the diff ..maybe your OEM diff is going bad.
anyways don't worry about it, unless you haven't ever serviced your trans and have slip. I've driven 50,000km+ with the "diff thump" and 0 issues besides the thump when it's cold from P>R>D
anyways don't worry about it, unless you haven't ever serviced your trans and have slip. I've driven 50,000km+ with the "diff thump" and 0 issues besides the thump when it's cold from P>R>D
Thread Starter
Senior Member
Joined: Feb 2013
Posts: 390
Likes: 37
From: Melbourne, Australia
2010 C63 and 2018 GLC63s
I will check it myself when I throw on new rotors and pads in the near future. If it is the diff, I will be pissed as I paid good additional money for a diff specialist to set it up.
MBWorld Fanatic!
Joined: Aug 2011
Posts: 5,351
Likes: 1,677
From: Kitchener, ON
2010 C63 AMG
If the backlash increased it wouldn't be the installers fault. There's no shims.
It could be anything like others have suggested. You have huge motor that's spinning at ~700RPM and a DT that is at 0RPM. You shift it to drive and the torque converter needs to absorb that difference of RPM to slip but not before the DT slack is taken up.
That jolt could be any of the mounts in the DT, the backlash being taken up in the diff etc. There's too many variables so we can only give you suggestions to inspect.
It could be anything like others have suggested. You have huge motor that's spinning at ~700RPM and a DT that is at 0RPM. You shift it to drive and the torque converter needs to absorb that difference of RPM to slip but not before the DT slack is taken up.
That jolt could be any of the mounts in the DT, the backlash being taken up in the diff etc. There's too many variables so we can only give you suggestions to inspect.
MBWorld Fanatic!
Joined: Aug 2012
Posts: 3,398
Likes: 371
c63
Junior Member
Joined: Jan 2023
Posts: 17
Likes: 1
C63 AMG
it isn't your transmission ...it's the diff ...my car does something similar ever since i had a wavetrac installed ...anyways MB's looked @ my transmission because i asked and theres nothing wrong with it, it's the diff ..maybe your OEM diff is going bad.
anyways don't worry about it, unless you haven't ever serviced your trans and have slip. I've driven 50,000km+ with the "diff thump" and 0 issues besides the thump when it's cold from P>R>D
anyways don't worry about it, unless you haven't ever serviced your trans and have slip. I've driven 50,000km+ with the "diff thump" and 0 issues besides the thump when it's cold from P>R>D
Would love to hear how you got on with yours.
