- Mercedes-Benz C-Class: Why is My Suspension bouncy?
Guide to diagnose trouble and recommended solutions
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Disappointed in this cars suspension qualities over rough roads.
But it shouldn't be unheard of to engineer an *E-Class*'s suspension to sit slightly low, and ride relatively firm, yet still absorb bumps and ride well when the going gets rough (yes I know, "Airmatic" is probably the cure, but you shouldn't have to go Air-Ride to get those qualities).
On smooth roads, this car rides brilliantly. Strong as an Ox, and has just enough "float" to keep things nice and smooth, but firm and tight as well, so you know it can handle some pushing, if need be. However, when the roads get bumpy and rough (and they do, in todays ravaged roads era), it rides like crap. Completely bumpy, lots of road chatter, lots of putting the structure to the test. It's unbefitting of an E-Class when you have to cringe when rough roads are on the way. My Chevy Malibu absorbs rough roads much better.
I'm under 30, and not too long ago, had a slammed Mustang GT with a 15" subwoofer and a no-muffler exhaust setup, so I can imagine that the general E demographic won't find this too kindly either. I think that MBUSA is shoving out the Sport Package as a free option to get the popping-smoke factor going, and gain sales, but I have a feeling that this may diminish Sales in the long run, as much of the E demographic will want something less fussy over rough patches, and something that won't bend rims so commonly, etc.
I will say, this is the #1 and virtually only thing that I am unhappy with about my car (aside from an annoying chatter/squeak at idle, which I need to get the Dealer to hopefully find and fix), enough so that it makes me question whether I'd want to keep it for the long haul (if I did buy it out after the Lease).
Note to M-B: The concept of a Sport suspension is to make a car handle like a Sports Car, which an E-Class appropriately doesn't do. Engineering a suspension TO RIDE HARSHLY ONLY FOR THE SAKE OF RIDING HARSHLY does *NOT* make a car "Sporty".
Sorry for the long post, had to rant!
Oh, and I will add: My AMG Sport Packaged W211 rode similar, but worse (the W212 keeps the same "Sport" concept, but improves it all around pretty well). The only thing the W212 does worse is I hear slightly more wheel-chatter when going over rough patches, but minimal.
Last edited by K-A; Apr 18, 2011 at 06:16 PM.
In all honesty, and I really hate to say this, because I really love this car, but the suspension geometry/dynamics are just extremely unrefined and unresolved over rough roads. It's not a very well done example of a Sport suspension on a Luxury car at all. As incredibly strong as this cars chassis/frame are, it's such a bitter moment when you have to cringe because you can hear the cars structure being put to the test and practically flexing because the suspension setup doesn't know how to absorb harshness.
I can't emphasize enough as to how amazingly this car rides on good road, however, it's like Mr. Hyde comes out to play when you encounter a some little rough patches.
Last edited by K-A; Apr 18, 2011 at 06:32 PM.
On a side note... Think we got similar taste in cars... I have my W212, and before that I had a W211 and before that a Fort Mustang GT.
LOL, we got some good taste!
What are we getting next? 
Oh, and I LOWERED my PSI to 32/35, which is lower than some people here have as well!
LOL, we got some good taste!
What are we getting next? 
Oh, and I LOWERED my PSI to 32/35, which is lower than some people here have as well!
I know for a fact I didn't cringe everytime I went over a pothole like I do now.
Now when I drive around L.A., i'm watching the ground like a retard and swerving around potholes every other street like a madman.
My current PSI is 30 / 32 at startup. It eventually goes up to like 34/36 after some driving.
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EmE: I know what you mean. I have "go around pothole" routes on roads, where I know exactly what lane to be in, or how far to swerve around it, like a madman. I'd get pulled over for sure if an Officer saw any of it. I don't know how you can bare it with 19's, and I have no idea what people are thinking/how some of you can do it, when getting 19's+ with lowered suspensions on these cars! Might as well get an M3 Sedan, at least with the bone jarring ride you get a stiff suspension that handles incredibly, which is the whole point of putting up with harsh suspensions in the first place.
Also I prefer the ride of the W211 over the W212. Both steering and suspension felt more accurate to me.
But the reality is that these cars are tuned for the masses and that includes people of older age.
I wonder if they will tend to this in the coming years or for the facelift. If they do, looks like us initial buyers will be the fortunate ones with that distinct rock hard "Sports Car" feel ONLY when the roads get rough.
Guys here buy new 20" wheels for looks... You can buy the stock 17s for comfort.
Guys here buy new lowering springs for looks... You can buy Luxury springs for comfort.
I dont see the difference between the two.

How old did you say you were again KA?
The wheels are a bit of a culprit, but a lot of it is clearly in the suspension geometry, it's clearly designed to perform spectacularly on smooth roads, but it's like they never R&D'd the SPORT Suspension on U.S spec sh** roads.
And I'm under 30.

I've owned some rude and crude cars in my not-so-long-ago yonder, and I loved them for it. This car does anything but glide over rough patches, and it should, in any of its designations, save for maybe the full blown raced out AMG. After all, it is an E-Class Mercedes Sedan.

Anyway It sounds like your next lease should be a E550 (Airmatic). Best of both worlds. Even on 20's the ride is smooth.
Or maybe we should start a petition to get MBUSA to sell E350's with airmatic as an available option.
Perhaps threaten to buy a Lexus...
I guess if I were to replace this car with another like it, I'd have to go Airmatic to get the ride I desire. I had ABC Suspension in my '02 W220 (first gen ABC) and it rode absolutely brilliantly. Airmatic isn't without its own (mostly long term) quirks however. I just don't get why M-B wasn't able to engineer a suspension that can "appear" Sporty, but maintain a luxurious ride over rough patches, using a conventional suspension (non Air) setup. And I don't get how they MBUSA feels that pushing their #1 volume Luxury Sedan (I don't consider the C-Class to be a Luxury Sedan as much as Sport Sedan) with a harsh-over-bumps Standardized Sport suspension is in any way good for the long term popularity of the E-Class.
and I can't see what difference it would make to have 20's with
airmatic.......that's just too much freakin' wheel........
Maybe the chassis isn't lending so much for smooth riding over bumps? It is a modified chassis that originated from the W204 C-Class, which is a rock solid, extremely strong chassis, but catered more toward a rougher, sportier ride.




BTW, nothing is free. The Sports package may be advertised as free, but neither the dealer nor M-B paid for it. It's just assembled that way as it comes down the line. May be a slight additional cost for larger wheels, but not much to M-B.
Consumer Reports downgraded the E 350 by almost 10 points from the previous model, primarily because of the ride. They tested a Sports version this time.
The only complaint I have is that the car doesn't dampen the "fall" as much as I would like when going over depressions in road. Not potholes, but just depressions. On other road surfaces, it does very well.
Recommended TO is 30F/35R, but I run 32/37. In my experience Michellin tires, which my car has, ride harsher than other brands.
As far as I can tell, The Luxury comes with: Comfort suspension; 17" 5-split spoke wheels with 245/45R17 tires; monochromatic interior (with contrasting colors on dash); different front bumper cover and grille; stainless trim on front and rear bumper covers; oval exhausts; black instrument cluster surrond. I also got the wood & leather steering wheel with mine.
Last edited by El Cid; Apr 19, 2011 at 11:17 AM.
Maybe the chassis isn't lending so much for smooth riding over bumps? It is a modified chassis that originated from the W204 C-Class, which is a rock solid, extremely strong chassis, but catered more toward a rougher, sportier ride.

but I go slow over that stuff anyway.....
I'm sure there is a big difference once one moves up to the 63 huh?
but I go slow over that stuff anyway.....
I'm sure there is a big difference once one moves up to the 63 huh?
FWIW, I test drove a 2010 E350 coupe (yes I know it's really a modified C Class chassis in disguise) and was shocked at how poorly it rode with the sport package with 18" wheels and stiffer suspension, compared to one I drove subsequently without that package.
No question, the coupe and sedan look better with the sport package, but for some of us there comes a time in life when one's kidneys tend to take precedence over one's eye appeal. Sigh. Will be ordering a 2012 without the sport package.
BTW, those of you driving the 2010-11 E Sedan, IMO it's the best looking sedan on the road in that class. Congrats.
Al
Last edited by BenzMan369; Apr 19, 2011 at 04:09 PM.
Last edited by Wig; Apr 19, 2011 at 07:05 PM.











