Slipping Tranny? Anyone else
Thread Starter
Member
Joined: Jul 2009
Posts: 75
Likes: 0
From: Gaithersburg, MD
2009 C350, 2012 ML350
Slipping Tranny? Anyone else
Has happened to me and my wife; she has an '09 C300 and I have a '09 C350 both autos.
After coming to a complete stop and I accelerate the RPMs go up then nothing for a like a second then it catches and takes off giving a little tire spin. Its very rare and I doubt I will be able to get the dealer to replicate the problem in the short time they have it, but has anyone else had this issue with there W204? Have not seen and service bulletins on this.
Thanks
After coming to a complete stop and I accelerate the RPMs go up then nothing for a like a second then it catches and takes off giving a little tire spin. Its very rare and I doubt I will be able to get the dealer to replicate the problem in the short time they have it, but has anyone else had this issue with there W204? Have not seen and service bulletins on this.
Thanks
Super Moderator
Joined: Jun 2008
Posts: 19,942
Likes: 192
From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
+1^
Please note that you have to be patient with these cars. Does it only do this if you slip the car out of Drive? If so you need to wait a few seconds after selecting Drive for it to engage properly before accelerating or it will rev & then ****** with a thunk & possible wheelspin.
Please note that you have to be patient with these cars. Does it only do this if you slip the car out of Drive? If so you need to wait a few seconds after selecting Drive for it to engage properly before accelerating or it will rev & then ****** with a thunk & possible wheelspin.
Thread Starter
Member
Joined: Jul 2009
Posts: 75
Likes: 0
From: Gaithersburg, MD
2009 C350, 2012 ML350
+1^
Please note that you have to be patient with these cars. Does it only do this if you slip the car out of Drive? If so you need to wait a few seconds after selecting Drive for it to engage properly before accelerating or it will rev & then ****** with a thunk & possible wheelspin.
Please note that you have to be patient with these cars. Does it only do this if you slip the car out of Drive? If so you need to wait a few seconds after selecting Drive for it to engage properly before accelerating or it will rev & then ****** with a thunk & possible wheelspin.
Super Moderator
Joined: Jun 2008
Posts: 19,942
Likes: 192
From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
OK 
Get the latest transmission flash & make sure you have the 39K transmission service done & do it every 39K like ROW. Filled for life is nonsense.
Other things that can cause what you describe.
- Slightly low transmission fluid level. Your cars have the new transmission pan & spill tube that raises fluid level but it might be low.
- Slightly blocked transmission filter. If the differential across the filter media rises it can cause a delay in the system coming up to full pressure.
Good luck!
Get the latest transmission flash & make sure you have the 39K transmission service done & do it every 39K like ROW. Filled for life is nonsense.Other things that can cause what you describe.
- Slightly low transmission fluid level. Your cars have the new transmission pan & spill tube that raises fluid level but it might be low.
- Slightly blocked transmission filter. If the differential across the filter media rises it can cause a delay in the system coming up to full pressure.
Good luck!
MBWorld Fanatic!
Joined: Sep 2009
Posts: 2,108
Likes: 7
From: Dix Hills, New York
2012 C250 Coupe
I have a phenomenon that appears to be the transmission slipping. It only happens the FIRST time that the car shifts from 2nd -> 3rd after being started. The rpms rise about 500 and it is an unpleasant jerky feeling. This is usually accompanied with a spring release sound from what appears to be by my feet in the driver side area. Then after that everything is fine. It appears to be some valve related error? Any suggestions?
Trending Topics
MBWorld Fanatic!
Joined: Aug 2007
Posts: 1,914
Likes: 5
LOADED 08' C350 & 14' GLK-350 Diamond White (P1, MM, AMG Pkg, Ln Trkng, Htd Sts, Keylss Go)
I have a phenomenon that appears to be the transmission slipping. It only happens the FIRST time that the car shifts from 2nd -> 3rd after being started. The rpms rise about 500 and it is an unpleasant jerky feeling. This is usually accompanied with a spring release sound from what appears to be by my feet in the driver side area. Then after that everything is fine. It appears to be some valve related error? Any suggestions?
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
MBWorld Fanatic!
Joined: Aug 2007
Posts: 1,914
Likes: 5
LOADED 08' C350 & 14' GLK-350 Diamond White (P1, MM, AMG Pkg, Ln Trkng, Htd Sts, Keylss Go)
OK Get the latest transmission flash & make sure you have the 39K transmission service done & do it every 39K like ROW. Filled for life is nonsense.
Other things that can cause what you describe.
- Slightly low transmission fluid level. Your cars have the new transmission pan & spill tube that raises fluid level but it might be low.
- Slightly blocked transmission filter. If the differential across the filter media rises it can cause a delay in the system coming up to full pressure.
Good luck!
Get the latest transmission flash & make sure you have the 39K transmission service done & do it every 39K like ROW. Filled for life is nonsense.Other things that can cause what you describe.
- Slightly low transmission fluid level. Your cars have the new transmission pan & spill tube that raises fluid level but it might be low.
- Slightly blocked transmission filter. If the differential across the filter media rises it can cause a delay in the system coming up to full pressure.
Good luck!
Does the transmission flash address both Sport (S) mode and Comfort (C) Mode?
I got the latest transmission flash done but on the service report it said that it was done only to address the choppy/jerky shifts in S Mode...
Do I need to go back and get the Flash done to C Mode as well? Or does the flash address both C and S?
Thanks in advance!
RB
MBWorld Fanatic!
Joined: Sep 2009
Posts: 2,108
Likes: 7
From: Dix Hills, New York
2012 C250 Coupe
Hey Glyn- I got a question for you:
Does the transmission flash address both Sport (S) mode and Comfort (C) Mode?
I got the latest transmission flash done but on the service report it said that it was done only to address the choppy/jerky shifts in S Mode...
Do I need to go back and get the Flash done to C Mode as well? Or does the flash address both C and S?
Thanks in advance!
RB
Does the transmission flash address both Sport (S) mode and Comfort (C) Mode?
I got the latest transmission flash done but on the service report it said that it was done only to address the choppy/jerky shifts in S Mode...
Do I need to go back and get the Flash done to C Mode as well? Or does the flash address both C and S?
Thanks in advance!
RB
Super Moderator
Joined: Jun 2008
Posts: 19,942
Likes: 192
From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
+1^ The biggest difference in the new flash is that the car comes to a halt in second gear & then changes to first in Sport mode to pull away again. While they have remapped the whole transmission the change down to first gear when pulling up quickly caused the biggest jerk.
