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Fall is almost here and wife's ride needs new shoes. We have to shed the pretty 21's. The car has an airmatic suspension and the ride has been great with the 21's despite the low sidewall. Given I have had to personally change tires on three of my wife's last 4 cars - and a tire shop on the 4th car, I am considering getting 19' run flats all seasons. If I didn't, I'll get standard 20' s AS. Please share experiences with the run flats particularly if you use or have used them and just opinions in general on this situation regardless of which you use or have used. The car resides in IL. Thanks for your input
2019 E 450, 2016 E350 4matic (retired), 2018 Ford Edge Sport, 2008 Porsche Boxster
Originally Posted by neuneleven
Fall is almost here and wife's ride needs new shoes. We have to shed the pretty 21's. The car has an airmatic suspension and the ride has been great with the 21's despite the low sidewall. Given I have had to personally change tires on three of my wife's last 4 cars - and a tire shop on the 4th car, I am considering getting 19' run flats all seasons. If I didn't, I'll get standard 20' s AS. Please share experiences with the run flats particularly if you use or have used them and just opinions in general on this situation regardless of which you use or have used. The car resides in IL. Thanks for your input
I have a 2019 E450 18" wheels with all season run flats. No complaints and good in snow: I go from Long Island to Vermont, 8 to 10 times a year, 250 each way in the winter to ski.
I have a 2019 E450 18" wheels with all season run flats. No complaints and good in snow: I go from Long Island to Vermont, 8 to 10 times a year, 250 each way in the winter to ski.
Hope this helps
Many thanks. Would you know which brand they are? I am looking at Pirelli P0 all seasons if I go with run flats
I had OE run flats on my '18 E300 before switching to Summer non run flats. The Summer tires were significantly quieter and the ride a bit smoother. The quieter part is from neighbor comments and me driving with the windows open. The run flats humming sound is similar to snow tires on smooth pavement. I don't know if the sound is because of the run flat tire stiffness or the all season tread. Both sets of tires are Pirelli P7 245/45-18.
2019 E 450, 2016 E350 4matic (retired), 2018 Ford Edge Sport, 2008 Porsche Boxster
Originally Posted by neuneleven
Many thanks. Would you know which brand they are? I am looking at Pirelli P0 all seasons if I go with run flats
My tires were OEM Pirelli P7 all season RF. I had to replace them because of bubbles in the sidewalls at 20K miles with plenty of tread left. I replaced them with OEM Pirelli P7 all season RF. Then I noticed a big gash on the inside of the tire - it was slowly losing air. If the tires were not RF I would have had a blowout. I replaced the Pirelli P7 with a pair of Bridgestone Driveguard Plus all season RF on the rear. I bought them from Costco to get their 5 year road hazard which should cover bubbles. The Bridgestone's are rated at 65K miles vs. 20K for the Pirelli. I have 5K miles on them. I do not feel any difference between the Bridgestone and the Pirelli's. The Bridgestone's at Costco were about $50 cheaper per tire.
Not sure I understand your objective. You currently have a 21" setup, and you're planning to switch over to 19" or 20"? Is this a seasonal tire/wheel swap, or are you planning to run a 19"/20" all season setup year-round?
I have and have had run flats, non-run flats, summer/winter combos over the years. For me, the biggest determining factor in ride quality has been size, as the size gets larger, the ride deteriorates. As far as noise goes, I have found that some tires get noticeably noisier with mileage. Some as early as 10-15,000 miles. In case of a puncture, run flats are convenient. I have tried the infiltrators twice. They did not work So I had to call for service anyway. I like the convenience of all-season tires. I do not drive aggressively enough on public roads to appreciate summer tires. Plus our roads in Michigan are poor to very poor and have been for decades. I admit that winter tires are fantastic especially with all of the electronics on modern cars. However, our winters now are milder here and the road crews do an excellent job, so I rarely need to drive on un-plowed roadways. By the way, that's a really nice looking MB you have.
Not sure I understand your objective. You currently have a 21" setup, and you're planning to switch over to 19" or 20"? Is this a seasonal tire/wheel swap, or are you planning to run a 19"/20" all season setup year-round?
I am planning to switch to a year round set up. I last did seasonal tire/wheel swaps decades ago in Europe and now would avoid the hassle given our milder winters. I understand dedicated winters are better, but I have gotten by with all seasons - or not driving a car in winter if equipped with summer tires.
I have and have had run flats, non-run flats, summer/winter combos over the years. For me, the biggest determining factor in ride quality has been size, as the size gets larger, the ride deteriorates. As far as noise goes, I have found that some tires get noticeably noisier with mileage. Some as early as 10-15,000 miles. In case of a puncture, run flats are convenient. I have tried the infiltrators twice. They did not work So I had to call for service anyway. I like the convenience of all-season tires. I do not drive aggressively enough on public roads to appreciate summer tires. Plus our roads in Michigan are poor to very poor and have been for decades. I admit that winter tires are fantastic especially with all of the electronics on modern cars. However, our winters now are milder here and the road crews do an excellent job, so I rarely need to drive on un-plowed roadways. By the way, that's a really nice looking MB you have.
I have 20s all-around, in my E450 All-Terrain, in a staggered format. They are shod with "Michelin Pilot Sport A/S 4" tires, with the "A/S" meaning "All-Season".
Works wonderfully, in all seasons. Near summer tire performance in the wet and the dry, and excellent snow performance (as long as the snow is not too deep, which of course requires snow tires). The grip during rainy weather, is unreal. Rated for 50K miles or so, but since it is a staggered format, the replacement will be done differently from say a square format.
The All-Terrain wagon has wider wheels/tires than the sedan (255s in the front, and 295s in the rear, in my case), and hence you will have to buy the sedan equivalent of these 20s (wheels and tires), should you decide to go with them.
I am planning to switch to a year round set up. I last did seasonal tire/wheel swaps decades ago in Europe and now would avoid the hassle given our milder winters. I understand dedicated winters are better, but I have gotten by with all seasons - or not driving a car in winter if equipped with summer tires.
All seasons will work satsfactorily year round if your local roads are reasonably well maintained and you can avoid driving in blizzards. All season tires with 3PMSF traction ratings, such as Michelin CrossClimates, will perform better than all seasons with only M+S ratings. Almost every tire brand makes 3PMSF rated tires, and you'll find more selection in 20". Talk to your tire dealer about what's available in 3PMSF rated run-flats (I think Bridgestone and Pirelli make them). For more info see https://thetirereviews.com/3pmsf-markings-on-tires/.
All seasons will work satsfactorily year round if your local roads are reasonably well maintained and you can avoid driving in blizzards. All season tires with 3PMSF traction ratings, such as Michelin CrossClimates, will perform better than all seasons with only M+S ratings. Almost every tire brand makes 3PMSF rated tires, and you'll find more selection in 20". Talk to your tire dealer about what's available in 3PMSF rated run-flats (I think Bridgestone and Pirelli make them). For more info see https://thetirereviews.com/3pmsf-markings-on-tires/.
Comparing the "Michelin Pilot Sport A/S 4" against the Michelin CrossClimates, is certainly interesting. I did the comparison to the CrossClimates, prior to sticking to the Pilot Sports (I have it in all of my cars).
The CrossClimates, with the 3peak All-weather designation, will add a little bit to the snow driveability, vis-a-vis the Pilots (the Pilots are one of the best AS tires in the snow), while the Pilot Sports will run circles around the CrossClimates, for the rest of the year, in both dry and in wet conditions. Pick your poison.
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