CLK63 Black Series Forum & Registry Information and discussion on the W209 CLK63 AMG Black Series and Registry for all owners.

Dif Leak

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old May 23, 2009 | 11:03 PM
  #1  
LZH's Avatar
LZH
Thread Starter
Banned
 
Joined: Aug 2007
Posts: 2,735
Likes: 1
CLK 63 Black Series, 2009 S550, 2011 Range Rover Supercharged, BMW F800 GS Anniv Edition
Dif Leak

Wondering if any of you guys have had this prob...I'm pretty sure it's not a leak or a blown seal, although I need to get it on a lift to see. I've got dif fluid dripping on the exhaust as the exhaust runs right next to it (right side). I know there is an overflow hole at the top of the dif and I'm pretty sure that's where it's coming from as it did it once before last time the fluid was changed - but, it's been months since I had the fluid changed. The overflow is also there if the fluid gets too hot it'll come out there. But yesterday I smelled burning (fluid hitting hot exhaust/small amount of white smoke) and checked it out and sure enough I could see a slight drip.
Anyone else every have this happen ? I'm not too worried...if the dif does destroy itself I get a new one under warranty
Reply
Old May 23, 2009 | 11:36 PM
  #2  
DFW01E55's Avatar
MBWorld Fanatic!
 
Joined: Feb 2004
Posts: 2,566
Likes: 7
'14 ML BT
Thankfully I haven't seen that.
If you toast it maybe you can get them to install a Quaife.
Maybe not.
Reply
Old May 24, 2009 | 12:48 AM
  #3  
Jim Brady's Avatar
MBWorld Fanatic!
 
Joined: Aug 2002
Posts: 1,309
Likes: 86
From: Cave Creek, AZ and Newport Beach
'22 G 63 AMG, '21 GLE 53 AMG, '20 NSX
Originally Posted by LZH
Wondering if any of you guys have had this prob...I'm pretty sure it's not a leak or a blown seal, although I need to get it on a lift to see. I've got dif fluid dripping on the exhaust as the exhaust runs right next to it (right side). I know there is an overflow hole at the top of the dif and I'm pretty sure that's where it's coming from as it did it once before last time the fluid was changed - but, it's been months since I had the fluid changed. The overflow is also there if the fluid gets too hot it'll come out there. But yesterday I smelled burning (fluid hitting hot exhaust/small amount of white smoke) and checked it out and sure enough I could see a slight drip.
Anyone else every have this happen ? I'm not too worried...if the dif does destroy itself I get a new one under warranty
Luke,
I think JDB had the same problem. I've seen it on the track in Germany and it turned out to be a diff oil cooler line which was blown on the hot exhaust.
I've also seen a "holed" oil cooler from a rock that caued the same issue you discribe.
Reply
Old May 24, 2009 | 01:20 AM
  #4  
Frankster's Avatar
Senior Member
 
Joined: Aug 2006
Posts: 270
Likes: 24
From: Sunny California
keep us posted. Was it recently serviced?
Reply
Old May 24, 2009 | 06:41 AM
  #5  
JDB's Avatar
JDB
Senior Member
20 Year Member
 
Joined: Nov 2002
Posts: 381
Likes: 0
CLK63 Black Series
Originally Posted by Jim Brady
Luke,
I think JDB had the same problem. I've seen it on the track in Germany and it turned out to be a diff oil cooler line which was blown on the hot exhaust.
I've also seen a "holed" oil cooler from a rock that caued the same issue you discribe.
Jim,
Regarding my prior posting. I noticed an odor of what I believed to be the smell of heated differential oil whenever I drive the car a little harder than I normally do. I took the car to the dealership and the shop foreman and I thoroughly inspected the underside of the car, while it was up on a lift.

We couldn't find any evidence of any leaking fluids, anywhere. The next time we have it up in the air, I will double check the exhaust system to see if there is any evidence discoloration from fluid, but right now, I think that all that I was noticing was the smell of the fluid being warmed up a little more than what is normal for my car.

I'll post more, if I learn more.
JDB
Reply
Old May 24, 2009 | 03:07 PM
  #6  
TTMotorsports's Avatar
Former Vendor of MBWorld
 
Joined: Oct 2008
Posts: 1,181
Likes: 4
From: Long Island, NY
Whatever we're tuning!
Originally Posted by LZH
Wondering if any of you guys have had this prob...I'm pretty sure it's not a leak or a blown seal, although I need to get it on a lift to see. I've got dif fluid dripping on the exhaust as the exhaust runs right next to it (right side). I know there is an overflow hole at the top of the dif and I'm pretty sure that's where it's coming from as it did it once before last time the fluid was changed - but, it's been months since I had the fluid changed. The overflow is also there if the fluid gets too hot it'll come out there. But yesterday I smelled burning (fluid hitting hot exhaust/small amount of white smoke) and checked it out and sure enough I could see a slight drip.
Anyone else every have this happen ? I'm not too worried...if the dif does destroy itself I get a new one under warranty
Luke-
Were you romping on the car or cruising it? The overflow is also there to let any built up pressure when you are spinning the rear in high RPM runs. Possibly aeration?

A lift should answer your questions immediately. Let us know what you find!
Reply
Old May 24, 2009 | 04:32 PM
  #7  
LZH's Avatar
LZH
Thread Starter
Banned
 
Joined: Aug 2007
Posts: 2,735
Likes: 1
CLK 63 Black Series, 2009 S550, 2011 Range Rover Supercharged, BMW F800 GS Anniv Edition
Thanks guys - I've done the best "visual" that I can without a lift. All the cooler lines seem to be intact. My last service was almost a year ago so the overfilled dif scenario isn't really a concern.
TT could be right, but when this happened I wasn't driving it hard at all...I guess gettin'er on a lift needs to happen sooner rather than later.
I'll keep you guys posted.
Reply
Old May 27, 2009 | 07:44 PM
  #8  
LZH's Avatar
LZH
Thread Starter
Banned
 
Joined: Aug 2007
Posts: 2,735
Likes: 1
CLK 63 Black Series, 2009 S550, 2011 Range Rover Supercharged, BMW F800 GS Anniv Edition
Well I went by the shop today and we put'er up on the lift...no leak, just seemes to be a bit of seepage coming from the top overflow hole. The entire right side of the dif was however wet so we cleaned it off and I guess I'll just keep an eye on it as per the shop foremans instructions.
Just thought I'd fill you guys in....
Reply
MB World Stories

The Best of Mercedes & AMG

story-0

6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

 Verdad Gallardo
story-1

Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

 Verdad Gallardo
story-2

Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

 Verdad Gallardo
story-3

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-4

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

 Verdad Gallardo
story-5

Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

 Verdad Gallardo
story-6

Mercedes EQS Gets A Major Update: Everything You Need to Know

 Verdad Gallardo
story-7

5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

 Verdad Gallardo
story-8

Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

 Verdad Gallardo
story-9

10 Most Reliable Mercedes-Benz Models You Can Buy Used

 Verdad Gallardo
Old May 27, 2009 | 08:03 PM
  #9  
DFW01E55's Avatar
MBWorld Fanatic!
 
Joined: Feb 2004
Posts: 2,566
Likes: 7
'14 ML BT
Thanks, I'll check mine in the next few days and let you know if it's a match.
Reply
Old May 27, 2009 | 08:19 PM
  #10  
LZH's Avatar
LZH
Thread Starter
Banned
 
Joined: Aug 2007
Posts: 2,735
Likes: 1
CLK 63 Black Series, 2009 S550, 2011 Range Rover Supercharged, BMW F800 GS Anniv Edition
U bet, although if yours is/was doing the same....you'd smell it pretty quickly.
Reply
Old Jun 11, 2009 | 11:16 AM
  #11  
jrcart's Avatar
MBWorld Fanatic!
 
Joined: Jan 2008
Posts: 6,621
Likes: 55
From: Naperville, IL/Chicago
2008 CLK63 Black Series 2012 C63 Black Series 2014 SLS Black Series
Luke, mine started leaking that day we were at Willow in January. It was indeed the seal and not an overflow. If I recall it took several days to obtain the part because they were on back order and it had to come out of Germany.
Reply
Old Jun 11, 2009 | 03:10 PM
  #12  
LZH's Avatar
LZH
Thread Starter
Banned
 
Joined: Aug 2007
Posts: 2,735
Likes: 1
CLK 63 Black Series, 2009 S550, 2011 Range Rover Supercharged, BMW F800 GS Anniv Edition
Thanks Jim....We poked around mine when it was on the lift and it was pretty apparent it was coming from the overflow valve. Strange....
Reply
Old Jun 17, 2009 | 09:53 AM
  #13  
DFW01E55's Avatar
MBWorld Fanatic!
 
Joined: Feb 2004
Posts: 2,566
Likes: 7
'14 ML BT
Originally Posted by LZH
Well I went by the shop today and we put'er up on the lift...no leak, just seemes to be a bit of seepage coming from the top overflow hole. The entire right side of the dif was however wet so we cleaned it off and I guess I'll just keep an eye on it as per the shop foremans instructions.
Just thought I'd fill you guys in....
Checked mine last night, same thing, Not an active leak, just overflow seepage.
Reply
Old Jun 17, 2009 | 03:21 PM
  #14  
LZH's Avatar
LZH
Thread Starter
Banned
 
Joined: Aug 2007
Posts: 2,735
Likes: 1
CLK 63 Black Series, 2009 S550, 2011 Range Rover Supercharged, BMW F800 GS Anniv Edition
Originally Posted by DFW01E55
Checked mine last night, same thing, Not an active leak, just overflow seepage.
That's good to know. Was the passanger side of your diff all wet ? Mine was and the drivers side was dry...
Reply
Old Jun 17, 2009 | 03:37 PM
  #15  
DFW01E55's Avatar
MBWorld Fanatic!
 
Joined: Feb 2004
Posts: 2,566
Likes: 7
'14 ML BT
Originally Posted by LZH
That's good to know. Was the passanger side of your diff all wet ? Mine was and the drivers side was dry...
It was only the passenger side but it was just oil covered with dirt/dust.
Reply
Old Jun 17, 2009 | 03:43 PM
  #16  
LZH's Avatar
LZH
Thread Starter
Banned
 
Joined: Aug 2007
Posts: 2,735
Likes: 1
CLK 63 Black Series, 2009 S550, 2011 Range Rover Supercharged, BMW F800 GS Anniv Edition
Thanks for the info. Sounds like this is normal for these cars.
Reply
Old Sep 8, 2011 | 12:14 AM
  #17  
isellbenz's Avatar
Member
 
Joined: Jan 2008
Posts: 155
Likes: 1
From: West Chester, OH
2005 C230WZ, 2004 E55, 2004 Audi S4
My E55 is doing this very same thing... Anything ever come of it?
Reply

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


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


All times are GMT -4. The time now is 04:16 AM.

story-0
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-1
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-2
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-3
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-4
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-5
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-6
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE
story-7
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

Slideshow: These overlooked Mercedes-Benz models never got the spotlight, but they quietly delivered more than most remember.

By Verdad Gallardo | 2026-04-13 19:35:45


VIEW MORE
story-8
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

Slideshow: A well-used 1991 Mercedes-Benz 300D with more than one million miles is now looking for a new owner, and it still appears ready for more.

By Verdad Gallardo | 2026-04-10 10:05:15


VIEW MORE
story-9
10 Most Reliable Mercedes-Benz Models You Can Buy Used

Slideshow: From bulletproof sedans to surprisingly tough SUVs, these Mercedes models proved that the three-pointed star can go the distance.

By Verdad Gallardo | 2026-04-08 09:55:49


VIEW MORE