Anyone else not liking the 7-speed transmission on 2012 C250
So I have had my c250 since November, and figured by now the ECU would learn and perform better but this transmission just does a horrible job of shifting outside of the "sport mode" and unfortunately it doesn't stay in sport mode when you turn the car off. Anyone else feeling frustrated or it just me.
I haven't yet called to see if there are any TSBs out there to reprogram. |
Hate E. but S pretty good. Pain in ass to change every time car starts.
|
I dont like it on my c350 2009 and didnt like it on any mercedes whay thay didnt use somthing like the DSG smooth and fast
|
Originally Posted by until the end
(Post 5071440)
I dont like it on my c350 2009 and didnt like it on any mercedes whay thay didnt use somthing like the DSG smooth and fast
|
Yap thats right but thay use it in the A4 and golf and jeta whay we didnt see it in the c class ??
|
The transmission does hunt around in lower power, lower torque applications. As many motoring scribes have commented it needs a map between S & E. Indeed!!!
I drove a new SLK M271 Evo the other day & found it irritating until you sort of drive around it. Expect new mappings in the future. |
Originally Posted by Glyn M Ruck
(Post 5072388)
The transmission does hunt around in lower power, lower torque applications. As many motoring scribes have commented it needs a map between S & E. Indeed!!!
. Sorry Glyn :) Too many ATM gears can be detrimental to driveability . I see that there are some 8 speeds out there now. IMHO the six speed seems to be a good compromise. The 508 2 L diesel Peugeot with the 6 box recieves good reviews. |
Originally Posted by Carsy
(Post 5072784)
Five Speeds Rule :rolf:
3 pedals rule!! :rolf::rolf: No hunting nor hesitation here!:y |
Originally Posted by Carsy
(Post 5072784)
Five Speeds Rule :rolf:
Sorry Glyn :) Too many ATM gears can be detrimental to driveability . I see that there are some 8 speeds out there now. IMHO the six speed seems to be a good compromise. The 508 2 L diesel Peugeot with the 6 box recieves good reviews. There is nothing wrong with the 722.6 especially without economy mapping. Try driving a Lexus 8 speed - awful! |
Originally Posted by Sportstick
(Post 5072821)
3 pedals rule!! :rolf::rolf:
No hunting nor hesitation here!:y Sorry Sportstick. I can't live with clunky Benz manual boxes even in their latest form. The time will come that hesitation will be necessary from 1st to 2nd if you don't want to beat the synchro. |
Originally Posted by Glyn M Ruck
(Post 5072865)
:rolf: Yeah!
Sorry Sportstick. I can't live with clunky Benz manual boxes even in their latest form. The time will come that hesitation will be necessary from 1st to 2nd if you don't want to beat the synchro. |
I'm sure you drive in a fashion that will preserve the synchro. You clearly understand what you are doing.
|
Originally Posted by Glyn M Ruck
(Post 5072911)
You clearly understand what you are doing.
|
I'm not a fan either. I had a C250 loaner the other day and it was annoying to say the least. I had a great experience with the Sportronic in the Z4 I had. It was 6 speed. It didn't auto shift for you in Sport mode either which was nice if you are trying to hold an RPM through a turn on a track. I have the 6 speed manual and it's nice. Clunky and squishy at the same time, but nice to have. Not searching for the correct pedal position to avoid unwanted shifts. I forsee new shifter improvements for the Mercedes 6 speed manual coming in the next year from a company I have bought from before. They make really quality stuff. http://www.twmperformance.com/
I have been pestering them for almost a year to make the only shifter option for our cars. I took pictures, sent them measurements, and now I think they are in development from the email I recieved from them the other day. I was trying to get them to make a replacement shifter, short shifter, solid bushings option for us. They have some really sweet weighted knobs too. Sorry to sort of highjack your thread. |
Originally Posted by Stevedotmil
(Post 5073928)
I forsee new shifter improvements for the Mercedes 6 speed manual coming in the next year from a company I have bought from before. They make really quality stuff. http://www.twmperformance.com/
I have been pestering them for almost a year to make the only shifter option for our cars. I took pictures, sent them measurements, and now I think they are in development from the email I recieved from them the other day. I was trying to get them to make a replacement shifter, short shifter, solid bushings option for us. They have some really sweet weighted knobs too. Sorry to sort of highjack your thread. |
It's looking better than it was last year when I bought my car and there was nothing but OEM and Brabus so I hope it works out.
|
Originally Posted by until the end
(Post 5071440)
I dont like it on my c350 2009 and didnt like it on any mercedes whay thay didnt use somthing like the DSG smooth and fast
The tranny was designed and licensed to VW (and Nissan) by a USA corporate giant named Borg-Warner. Only problem, they made it on the cheap. The 2nd generation DSG hopefully will not suffer from these issues. We who own DSG equipped cars don't refer to them as the , Don't Shift Good transmission for nothing. :rolf: Bottom line: No you don't want this tranny in your car. |
Redux & I certainly agree in the case of the VAG DSG crap. The Porsche PDK is far better implemented.
The 722.9 7 GTronic Plus it is mapped for maximum economy. It is in such a hurry to get into top gear that it will sometimes lug the engine. Then you apply gentle throttle to get out of the lugging situation & it suddently changes down multiple gears & want's to take off like a scalded cat. Not great for driving in traffic. We need a map that holds all gears a little longer & less sensitive multi gear kickdown. |
Originally Posted by RLE
(Post 5072110)
DSG (invented by Porsche) is an entirely different transmission and much more costly. You can get it in some high MB models.
|
I find it helps to put the car into the TouchShift function, and tell it that it is only a 6-speed transmission. That is, only let it automatically choose between 1-6 (unless on highway). I find it is much more responsive in this manner.
But I agree, the stock E mode is junk, unless doing 100% highway driving. And the sport mode is very good. Apparently in 2013 benz is coming out with new stock mapping. "E/S/M" Hopefully the results will be much better. :zoom: |
I also do not like the 7 speed in my c300 sport. Even in s, it fails to shift quickly and sometimes kicks unexpectedly.
|
Originally Posted by kid543
(Post 5071306)
So I have had my c250 since November, and figured by now the ECU would learn and perform better but this transmission just does a horrible job of shifting outside of the "sport mode" and unfortunately it doesn't stay in sport mode when you turn the car off. Anyone else feeling frustrated or it just me.
A bit back, I tried the VW turbo Jetta automatic, and was bothered by the often confused transmission. As I posted before, when you are controlling a turbo that wants to blow-up unless controlled, and an engine, and an Automatic trans, it's much more difficult vs using a NA engine ... it's one less controlled function. For the C250, unless you put-put around, the driver needs to learn how to anticipate what is needed and how to make that happen with the happy pedal. I did try the DSG, with high hopes, and unless you are using it as a manual trans, the automatic mode seemed awkward. . |
Originally Posted by Glyn M Ruck
(Post 5074159)
The 722.9 7 GTronic Plus it is mapped for maximum economy. It is in such a hurry to get into top gear that it will sometimes lug the engine. Then you apply gentle throttle to get out of the lugging situation & it suddently changes down multiple gears & want's to take off like a scalded cat. Not great for driving in traffic. We need a map that holds all gears a little longer & less sensitive multi gear kickdown.
If you have to crawl around in plug flow traffic, to and fro work, it helps to reset the gas pedal, no? If you drive hard for a week, it seems to up the shift points, but is that just in sport mode? . |
Originally Posted by C300BLK
(Post 5075638)
I also do not like the 7 speed in my c300 sport. Even in s, it fails to shift quickly and sometimes kicks unexpectedly.
. |
Originally Posted by qaz393
(Post 5075414)
i dont think DSG or dual clutch transmission were invented by VW group. Also, the only car with dual clutch that mb has are the sls coupe and roadster....
The infamous DSG Mechatronics Module.... http://3.bp.blogspot.com/_9HZQkOglGu...echatronic.JPG |
All times are GMT -4. The time now is 05:23 AM. |
© 2024 MH Sub I, LLC dba Internet Brands