Harsh Ride on 2009 C350

in terms of the tracking issues described below, i do agree with you guys - it is a little washy at times. i solved this by putting my old 18" e350 rims on and slapping 235's up front...
tracking is spot-on now...
The Best of Mercedes & AMG

There really shouldn't be much of a difference between a C300/C350 assuming they are equipped with the same wheels/tires.
Also, has the service department looked at your car or given it a test drive? If not, I would press the issue once more and ask them to give it a look on the lift and drive it to get their opinion. Maybe go with them on the test drive.
Good luck!
I'm in North Carolina---but that's a great idea, to try the 17's for a day and see if that helps.
Krytech----What's your experience been with the C350?
And the techs measured the tire pressures today, apparently they are correct.
I'm in North Carolina---but that's a great idea, to try the 17's for a day and see if that helps.
Krytech----What's your experience been with the C350?




I'm in North Carolina---but that's a great idea, to try the 17's for a day and see if that helps.
Krytech----What's your experience been with the C350?
And the techs measured the tire pressures today, apparently they are correct.
I have the same set up and while I agree the ride can be considered a little harsh I am coming from a BMW 335i which had runflat tires which were hard as h*ll over 'any' bump. In comparison the C350 feels much softer.
If I were you, I would find a set of almost new 17" C350 wheels which come with the all-season tires and try them out. It will cost you very little because you can easily sell them and recoup some $$ when you are ready to get rid of them.

Going to Test Drive a C350 with 17'' rims today, hopefully i'll be able to make the difference.
Last edited by stallion150; May 28, 2009 at 11:44 AM.
Going to Test Drive a C350 with 17'' rims today, hopefully i'll be able to make the difference.
I would be very interested in hearing your opinion.
Test Drive: C350 with 17'' wheels and Contisport Tires and C300 Luxury with 17'' wheels and Contisport Tires vs. My C350 with 18'' AMG wheels and Contisport 3 tires.
2 sets of salesman drove all three cars (It was a long day!!!): One noted a difference between my C350 and the stock C350, while the second felt that the ride difference between the 18'' and 17'' was imperceptible.
Well it comes down to the driver's opinion: I noticed a HUGE difference between the C300 Luxury and my C350 and a significant difference between my C350 and the C350 they had with stock 17'' wheels and tires.
I've got 3 options: 1) tough it out and get used to car (best economically) 2) Ditch the 18'' Contisport 3's and go with comfort 18'' 3) Try to swap out my 18'' rims and tires to the dealer for a set of 17'' rims and tires (I get screwed money wise).
My major question to you guys: Is it worth the extra money and hassle to go from 18'' rims/tires to 17'', or can I get the same ride quality from Comfort oriented 18'' tires (much cheaper option)
Thanks so much! you guys have been great.










