C63 AMG (W204) 2008 - 2015

Transmission Mount Failure

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old 01-06-2015, 07:02 PM
  #1  
MBWorld Fanatic!
Thread Starter
 
Wobble64's Avatar
 
Join Date: Apr 2014
Location: Cincinnati Area
Posts: 1,001
Received 52 Likes on 40 Posts
C63 507 with BS Body; 2008 SLK 55
Transmission Mount Failure

Has anybody else had that? Mine failed at 8,500 miles.


It does not seem to be a big deal (60$ list price plus a bit of labor, maybe 200$ all in, covered by warranty). Just curious about whether this is common. I would not have expected such a simple part to fail so early.


PS: It is also called the rear engine mount, part number A212 240 10 18
Old 01-06-2015, 07:27 PM
  #2  
MBWorld Fanatic!
 
chrisridebike8's Avatar
 
Join Date: Nov 2012
Posts: 2,749
Received 407 Likes on 289 Posts
'10 C63
Interesting. What symptoms did your car have when it failed?
Old 01-06-2015, 07:32 PM
  #3  
MBWorld Fanatic!
 
m a x i m u s's Avatar
 
Join Date: Sep 2005
Posts: 3,165
Received 57 Likes on 53 Posts
C63 AMG P30 *EuroCharged*| Porsche Cayenne | Buell XB9SX
Replaced mine plus motor mounts at about 45k miles.
Old 01-06-2015, 07:33 PM
  #4  
MBWorld Fanatic!
Thread Starter
 
Wobble64's Avatar
 
Join Date: Apr 2014
Location: Cincinnati Area
Posts: 1,001
Received 52 Likes on 40 Posts
C63 507 with BS Body; 2008 SLK 55
A knocking noise, mostly when cold, less so when warm.


It took me forever to find anything. For the longest time I suspected the recent LTH install to be the culprit and we looked for any possible place the exhaust could be hitting, but could not find it. As it got gradually worse, I was eventually able to locate the noise by pulling on the headers and moving the entire engine/gearbox a tiny bit by doing that and was able to provoke it. Brought it to the shop yesterday and yes, rear engine mount failed.


Part is on order and will be installed in a couple days. Hopefully that will really be it.
Old 01-06-2015, 08:49 PM
  #5  
Senior Member
 
shades's Avatar
 
Join Date: Jan 2012
Location: Toronto
Posts: 381
Likes: 0
Received 0 Likes on 0 Posts
09 C63, 11 Cayenne S
Usually you get like a rough idle when your mounts start to go, tranny and engine. Could be the fluid came out from a bad hit or tear. Mine never had a knocking noise, only rough idle when the car was still at a light etc..But I hope that solves the problem for you. Inspect the old mounts and let us know what you come up with when you replace them
Old 01-06-2015, 09:22 PM
  #6  
MBWorld Fanatic!
Thread Starter
 
Wobble64's Avatar
 
Join Date: Apr 2014
Location: Cincinnati Area
Posts: 1,001
Received 52 Likes on 40 Posts
C63 507 with BS Body; 2008 SLK 55
At least the transmission mount looks to me like a simple rubber vibration damper, I would not have thought there was any liquid in that one. Also never saw any liquid leak anywhere (and the car is always parked over night in the garage, so I would see a leak). I'll look at it when it is out.

Maybe the engine mounts are more sophisticated with liquid inside.
Old 01-06-2015, 10:42 PM
  #7  
Senior Member
 
shades's Avatar
 
Join Date: Jan 2012
Location: Toronto
Posts: 381
Likes: 0
Received 0 Likes on 0 Posts
09 C63, 11 Cayenne S
Yeah they are, its a very minimum amount, i'm not sure you would even see a leak. I didn't know they had fluid either but i was told that they do
Old 01-07-2015, 12:57 AM
  #8  
MBWorld Fanatic!
 
roadtalontsi's Avatar
 
Join Date: Oct 2007
Location: Texas
Posts: 2,092
Received 285 Likes on 183 Posts
10 C six trizzle
no fluid in the trans mount, only the engine. Lots of excessive vibration and shaking. They are hit and miss just like mounts, depends on how its driven. Launch at the track with slicks frequently and im sure they'll wear much quicker.
Old 01-07-2015, 06:41 AM
  #9  
MBWorld Fanatic!
Thread Starter
 
Wobble64's Avatar
 
Join Date: Apr 2014
Location: Cincinnati Area
Posts: 1,001
Received 52 Likes on 40 Posts
C63 507 with BS Body; 2008 SLK 55
Guys, thanks for the info!
Old 01-11-2015, 02:21 PM
  #10  
Member
 
ld63's Avatar
 
Join Date: Oct 2013
Posts: 158
Likes: 0
Received 0 Likes on 0 Posts
2014 C63 507 Sedan
You mentioned this is covered under warranty - did you take the car to the dealer with headers/tune on there for the warranty work?

I installed the same AR group buy headers and upgraded tune and have some odd vibration at times too (slight rough idle). My installer pulled the engine to install headers so I'm wondering if the engine mounts were not secured properly or perhaps starting to degrade.
Old 01-11-2015, 04:14 PM
  #11  
MBWorld Fanatic!
Thread Starter
 
Wobble64's Avatar
 
Join Date: Apr 2014
Location: Cincinnati Area
Posts: 1,001
Received 52 Likes on 40 Posts
C63 507 with BS Body; 2008 SLK 55
Yes, I brought it to the dealers with the headers. They loved them - as they are obviously a professional piece of hardware. No discussion about the warranty as a result of the headers.
The install of the new transmission mount will be tomorrow.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: Transmission Mount Failure



All times are GMT -4. The time now is 08:10 PM.