Default to C mode on starting??
That said, I'm interested to know if there is a noticable gas consumption savings when in C over S. Personally, I prefer to use S. But when I hit the highways maybe it's better to stop the car and flip to C first. Anyone got any feedback there.
Also, the drivers manual suggests stopping the car first and then flipping between C and S. Is this really damaging to an MB if not followed. Or if I slide into Neutral first and then flip, will that do any long term damage also? All comments are welcome.
I don't think there's meaningful difference in fuel consumption between S and C. If there is any noticeable difference it's prolly due to person driving harder in S.
Also should not make any difference on a highway. Once you are in the 7th gear it doesn't matter how fast it upshifts.
BTW, I have been driving my C350 4matic over the last year changing between the S mode and the C mode on the fly without any problem. I am doing that in my GLK too. I think this is more of a safety issue rather than an engineering issue. Stand to be corrected until I get more info from the "horse's mouth" again.
It's like Audi with its "drive select", what’s the point of having it if you have to program it every time you drive, I'd never use it because of this.
On the upside C and S are not very different. GLK needs S+ for some spirited drives.
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BTW, I have been driving my C350 4matic over the last year changing between the S mode and the C mode on the fly without any problem. I am doing that in my GLK too. I think this is more of a safety issue rather than an engineering issue. Stand to be corrected until I get more info from the "horse's mouth" again.

Mine is Canadian model and it "C" is factory setting when I restart an engine everytime.
I forgot to ask him if the Sport Mode also alters shock settings as well as the transmission shift points. And haven't gotten through the book yet to see what it says.
Lastly, he confirmed that a "silent" change has occurred in the Program Mode programming...US spec vehicles now revert to "C" mode when the vehicle is shut off and SmartKey removed. Edition B (see back cover) of the Operator's Manual will reflect this change. Some technical language in the way the forthcoming US corporate fuel economy averages will be computed and M-B wants the default mode to be "C" which will help increase their corporate fuel average a bit.
Consequently, I suspect Jaydeath's "minority" comment isn't far off the mark. People just want to be assured there's nothing 'wrong' with their vehicle. And as I further quoted a Sindelfingen delivery technician, edition B of the Operator's Manual will take care of that. Perhaps in conjunction with the "x" version supposedly cutting in when the Bremen plant returns from their yearly August block vacation period and production resumes?
I agree tho S mode doesn't make the car any sportier or faster, and on real roads you don't need to. CL550 had to pass me 3 times whenever there was a stretch of road, driving on public roads has its art and doesn't require anything much faster than a Civic, so GLK does just fine.






