Winter options for CS450 with 20" wheels (all-season vs. summer+winter)
I'll certainly need some winter option (living in WI ...) and the straightforward choice would probably be a second set of wheels with dedicated winter tires (those would have to be 19" ... no proper options at 20" size).
I thought I might ask for an opinion on whether the following alternative would be worth considering ... in case anyone had a similar experience.
It *would* be possible to keep a single set of wheels (my current 20" AMG) and replace the Mercedes-OEM summer tires with an all-season option; the Michelin Pilot Sport A/S 3+ are available at that my vehicle's front/rear sizes, and they'd be actually notably cheaper than either the summer tires, or the winter ones (~$300/tire for the A/S, about $450/tire for either the summer, or the winter ones).
One downside would be that the Mercedes-OEM tires are run-flat, while the Michelin all-season ones are not; I'd be fine with getting a TireFit kit though for the case of a flat. And, of course, dedicated tires would give better performance.
Would anyone have any experience/advice to share? I feel that the optimal performance of the dedicated summer/winter tires would be best, but the convenience and cost benefit of the all-seasons is not easy to dismiss either ...




Last edited by slk55er; Jul 8, 2019 at 01:07 PM.




Thanks for the recommendation on the Hakkapeliitta ... I'll certainly consider them, although I'm thinking of a run-flat option since the car has neither a spare nor a TireFit kit. The Pirelli Sottozero 3's seem to be the only RF option at that size.
My plan is to wait until late-summer when Mercedes' own packages are supposed to update for MY19, to see if there's something interesting on offer. My dealer doesn't have anything else other than the MY18 offerings, still (https://www.mbusa.com/mercedes/acces...rtNo:BQ6400153)
I'll report back when it's all done. Thanks for all the feedback!
Could I burden you with confirming that both front/rear of your Pirellis are XL-rated? The Pirelli website itself seems to suggest so

Thanks!
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Could I burden you with confirming that both front/rear of your Pirellis are XL-rated? The Pirelli website itself seems to suggest so

Thanks!
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Pirelli Sottozero+3 Run Flats
https://www.tirerack.com/tires/tires...omCompare1=yes
Looks like 235/45R19 for the front in this Run Flat would be a good match to the 255/40R19 rears.
Last edited by slk55er; Jul 15, 2019 at 05:54 PM.
The investment aside (4 rims with tires (MO Michelin) and sensors are quote here 4500 euros), I need to think about the run flats or TireFit kit. In the CLS manual I do see mentions of the TireFit kit but it is not present in my vehicle.
How did it turned out for you?




https://www.tirerack.com/tires/tires...el=Quatrac+Pro






