Are 20's Bad for Airmatic Suspension?
I've had 3 E Classes. A 320, 500, and now an E63. All have been equipped with Airmatic suspension. All have had 20's on them at some point. I never noticed a problem other than lousy ride quality from the low pro tires.
But before I sold my E500, I had a problem where the relay for the airmatic motor got stuck and the motor kept spinning like crazy until I removed the relay. It never really seemed the same ever since. I didn't experience any kind of rubbing or anything as a result, it just seemed...different.
At any rate, my E63 is my baby now and I want to preserve it as best I can. That said, I'm looking for a wheel and tire setup that 1. Won't jeopardize the Airmatic 2. Won't sacrifice performance. 3. Looks aggressive.
Anyone care to weigh in on this?
Less tire = more prone to crack
If not setup properly = rubbing
Not many tire choices = headache when replacing tires to find tires
Not many options = well self explanatory
Huge wheel = would need to drive carefully
Problem with airmatic ? I have no clue regarding that
I think the general consensus is 19 is best of both worlds but ofcourse bigger wheels do look good.
So in the end what do you want more ? Performance vs Looks
Rafiki is right that a big heavy wheel will kill performance. I also think that an E63 is properly geared for the 18's they come with.
..and viren, Yes on prone to cracking. Although my 1st set of custom wheels on my 1st Benz were 19" Brabus monos. They were expensive as S*** and bent like tin cans. Sold em for like $200 after they were trapezoids. 1st set of 20's rubbed a bit up front, but I fixed that. Tires are pricey, but a little more common these days.
My dilemma is this. I live in LA so the roads are garbage. Makes me want a meatier tire. However, I'm yet to find a 19" wheel that has the aggressive concave look I'm after.
Decisions...decisions...
Just found out yesterday that adv 5.1 the wheels alone will run around 6,700 USD lol
Man i'd be pissed after spending that amount the rim cracked cuz of the frikking pot hole
This can hold true for any size wheel, if you get the wrong offset. As long as you stay with the correct overall diameter of wheel & tire, rubbing from that a height aspect is non-existent.
Between TireRack & Discount Tire, there are 4 sets of matching front/rear tire combos in the common (& correct diameter) 20" size for the W211. Seems like enough to me.

Not many wheels? There are plenty available for the W211. See the E55 wheel thread for ideas.
Not many tires? See previous reply
See first reply. There is no argument against driving carefully. It's a consequence of looking good.

This is true.
Last edited by HeissRod; Apr 26, 2013 at 10:03 PM.
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A local shop owner known to me , told me that a customer purchased rims from him which were made from "Air force aluminium" whatever that means and a weekend later was back to get another cuz one got cracked.
Hell, I have cracked my stock rims twice and trust me the way I drive to avoid pot holes , people behind me would think that I'm trying to practice Mario Cart in real life.
20's weigh more = worse acceleration, braking, and handling (although everyone will argue you won't be able to tell)
20's will require you to have a smaller sidewall = worse ride quality and more prone to bent / cracked rims
Generally the 20" tires are more expensive too, so I have no idea why folks go this route other than pure aesthetics.....
I have staggared 20's on my V and very recently went through two Left front tires and and I bent my left rim the second time after hitting potholes. Fortunaltely for me I was able to get the rim repaired for $150.00 versus having to replace the rim for close to $1000.00. Now my rims are light weight, so I don't have any performance penalties other then maybe off the line acceleration. Handling/Cornering seem to be better, but off the line traction is not the best with 20's stiff side walls especially from a dig.
I tried to order the same wheels I had on my old E55, iForged wheels but I never heard back from them so I ordered the CL63-RS from Jerry at http://www.formymercedes.com/mb_resu...Wheels+Gallery and I'm very happy with the look the gave the car.
My E63

My old E55
I later found out why. All "chrome lips" are basically just beauty rings that snap over the barrel of the wheel. Some manufacturers use rings that leave a void in between the barrel and lip. This makes the lip very "soft" and prone to dings and imperfections. This risk is greatly reduced when a manufacturer uses the correct ring for the barrel reducing the void and making the lip "harder".
Of course mine were the Asian Market repros, so I guess I got what I paid for on that one.
Last edited by Benz_U_Over; Apr 29, 2013 at 06:39 PM.
Has anyone ever experienced an air strut issue or malfunction and had a tech site larger wheels and tires as the culprit?
FWIW ,while refinishing my stock wheels I found 2 nice repairs. I've never bent any of my aftermarket wheels
Last edited by coolchuck; May 14, 2015 at 08:53 PM.










