My First Winter Experience
In snow, 4wd aids with starting/acceleration and maintaining speed. It is not an asset when stopping or turning compared to rwd.
It seems many people do not understand this. Another thing many people do not seem to understand is that using lower gears to engine brake in snow is considerably more dangerous than using the brakes to maintain speed or slow down.
In snow, 4wd aids with starting/acceleration and maintaining speed. It is not an asset when stopping or turning compared to rwd.
It seems many people do not understand this. Another thing many people do not seem to understand is that using lower gears to engine brake in snow is considerably more dangerous than using the brakes to maintain speed or slow down.
Using a downshift to slow down in bad conditions should be common knowledge, but I'm pretty sure it isn't. Its the best way I know how to stop a RWD Benz in snow or ice, even with snows on.
M
Unfortunately it sounds like you traded off bluetec for 4matic...not sure I'd make the same choice in New England, but then again I used to drive my Mustang GT in the winter too...it all depends on what you are willing to live with.
Using a downshift to slow down in bad conditions should be common knowledge, but I'm pretty sure it isn't. Its the best way I know how to stop a RWD Benz in snow or ice, even with snows on.
M
Downshifting the car is one way to slow down, but there is no "best." In a RWD car, you are essentially dropping an anchor, letting the rear wheels drag along. This minimizes understeer under braking in bad conditions, but only two wheels do the braking. In many circumstances, it would be better to have all 4 wheels slowing you down, which normal braking would provide. The problem is that people often brake too hard in snow and bad conditions, leading to understeer. If they were to brake much more lightly -- feathering if you will -- that they would find the sweet spot where the tire is on the edge between rolling and locking up. There is a lot of braking power at that point. That point changes as the car slows down because the momentum diminishes, so one needs to brake even more lightly as the car slows down.
EDIT: This is also true even with ABS. I find ABS to be terrible (any car) in snow and ice. Much better to find that sweet spot!
Please also be aware that downshifting when one of the rear wheels has more grip than the other can put you in a snap spin.
As all car makers point out the driver is ultimately responsible for the safe operation of a vehicle and,accepting that,there's no reason that *I* can see that the cruise control shouldn't work.
But that's just me I suppose.
Downshifting the car is one way to slow down, but there is no "best." In a RWD car, you are essentially dropping an anchor, letting the rear wheels drag along. This minimizes understeer under braking in bad conditions, but only two wheels do the braking. In many circumstances, it would be better to have all 4 wheels slowing you down, which normal braking would provide. The problem is that people often brake too hard in snow and bad conditions, leading to understeer. If they were to brake much more lightly -- feathering if you will -- that they would find the sweet spot where the tire is on the edge between rolling and locking up. There is a lot of braking power at that point. That point changes as the car slows down because the momentum diminishes, so one needs to brake even more lightly as the car slows down.
EDIT: This is also true even with ABS. I find ABS to be terrible (any car) in snow and ice. Much better to find that sweet spot!
Please also be aware that downshifting when one of the rear wheels has more grip than the other can put you in a snap spin.
All true, but it does vary with conditions. A few times in deep snow a firm stomp brakes gets you an automatic build up of snow in front of the car which will stop you. LOL ~ I don't recommend this though.
I don't see why anyone would use cruise in snow either, which is what I was saying earlier. Knowing Mercedes if there is anything obstructing the various sensors up front, I'm not surprised those functions won't work in certain conditions. Rightly so IMO.
M
The Best of Mercedes & AMG
As all car makers point out the driver is ultimately responsible for the safe operation of a vehicle and,accepting that,there's no reason that *I* can see that the cruise control shouldn't work.
But that's just me I suppose.

So you would use CC in snow or heavy rain?
Edit: Just re-read your post. Sure there are reasons why it wouldn't work, if were talking about Distronic or some other system that has to read the road. If something is blocking the sensors or "eyes" of the system of course it isn't going to work. Would you rather it work and malfunction or just prevent you from harming yourself?
M
Last edited by Germancar1; Nov 2, 2011 at 03:42 PM.
Now with the 4matic, I researched and found that the Conti DWS all seasons are the highest rated and surveyed all seasons offered thru Tire rack.
I dont know what you fellas think,,but Tire Rack has saved me mucho$$$ and the info you get from their site is terrific.
So they say we're in for another rough winter in the Northeast,,,so lets see
As all car makers point out the driver is ultimately responsible for the safe operation of a vehicle and,accepting that,there's no reason that *I* can see that the cruise control shouldn't work.
But that's just me I suppose.

With your hospital experience and your focus on safety I find your opposition to winter tires to be completely illogical.

Thank goodness I put 4 Hankook Icebears 300s on my Cl55. I drove from York Me to Manchvegas in a terrible Valentines days ice storm several years ago. Did not want to but had to and the Gwagen was in NH. I set up the ABC, the transmission for snow driving according to the OM. I never went over 45 mph but I only slipped once. The clowns with the FW and AWDs were in the ditches, the worst was A RAM truck that passed me going 60 and flipped over about 3 miles up 101. Yes the Parktronic complained even though I kept squirting the h/ls with subzerorainx.
Since I am moving near the hilly Icebox of CT, and i underwent CL&P folly too, I recommend you put 4 snowflake rated tires on your car. If you have to do much highway driving the W rated Icebears are a tire I would consider. Otherwise there are more ice abrasive options like Blizzaks, ToYo g02 plus, and a Hankook that can be studded. All of these handle like winter tires on dry roads but are Much safer and competent in the snow dumps than all seasons or any compromise tire no matter what the pedigree.
Horses for courses.
Last edited by grane; Nov 9, 2011 at 09:30 PM.
My former coupe, a CLK320, had a well deserved reputation as becoming the world's most expensive driveway ornament in snowy/icy wx. Simply undrivable on most serious snow/ice. I hadn't owned a full set of snow tires in years, thanks to Honda and front wheel drive.
After much gnashing of teeth, I let the moths out of the wallet and put a set of four Michelin Arctic Alpin snows on the CLK. It totally transformed the car into one of the most stable cars I had ever driven on snow and ice. Of course, MB's various traction aids and the transmission winter driving mode also helped, but it was the snows that made the major difference.








