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Discussion Starter · #1 ·
Hello, I own a Q30s 2.0T with the factory Goodyear Run flat tires (235/45 R19). I need to replace them and I want to buy the Michelin Pilot Sport 4 in the same size. Do these tires change the stability of the car? Or other negative effects that can happen? I assume that the car is configured for run flats, so I don't know if it's wise to replace them. But I don't like the fact that they are not really comfortable.

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Hi, I am interested in this also. I notice the tyre/tire info plate on the door pillar just says 235/45/R19 95V. No reference to RFT. IMHO it is perfectly acceptable to fit non-RFT as long as they are the same size and not less than the 95V load rating - as I am sure you know too. I would fit 99 XL extra load rated tyres, again these having the stiffer sidewalls - but not as stiff as the RFT.
I think for info - both the A35 and A45 Mercedes do not have RFT tyres fitted by the factory. I think the Michelin Pilot Sport 4 would be an excellent choice.
I will replace mine with the AVON ZV7 as they have good reviews and keen prices also. :D
 

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Discussion Starter · #3 ·
I have ordered non-RFT Michelin Pilot Sport 4 99 XL MO tires. MO stands for Mercedes Originals. The Goodyears RFT that are currently on my car are MOE. Don't know if it will make a huge difference but they were only 鈧4 more.
 

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Congratulations, I bet you will love those tyres. Please keep me posted on how they perform 馃憢
 
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