gk1

ContiSportContact 5 Contiseal
It appears to be one of the only other options for the SQ5 21" 255/40-21 stock size.
The OE Dunlops were ok, but hoping for something better.
The Contiseal system looks interesting but I'm curious about any balance issues or anything like that.
Only reviews I could find were in UK on non-similar vehicles.

ex-quattro PETE

Pirelli P Zero is also available in this size.

Sorry, no experience with CSC5. I did have CSC3 on my old A4, and I liked them a lot.

gk1

Thanks. Never had a good experience with any Pirelli's. Flat spots, poor treadwear, overall ride quality. Would sooner stick with the Dunlops than even take a chance on the Pirelli's.
Thank you for the response on CSC3 I've had other Continentals as well and they have been pretty good.

ToyZ

My wife's E63S Estate came with ContiSportContact 5P's. I'm not sure what the difference is to the "Contiseal". However, the 5P's are quiet, have good dry grip (in AZ we don't get much rain or snow and we use the SQ5 in inclement weather) and fairly long wear (considering the car has 577HP and 590 lb-ft of torque). They are wearing evenly (in spite of some pretty hard driving - street, not track) and at 14K miles they still have a couple thousand miles to go before they hit the treadwear indicators. We will replace them with the same tire. Hope this helps a bit.

gk1

Thanks for the info. The Contiseal has goo inside the tire to help seal a small puncture without going flat.

waninae39

worst tires i ever had!
the ContiSportContact wore out after only 8k KMs
replaced them with Michelin pilot sports. and i love them

jbbarrette

Just picked up pilot sports also. So far so good! Although ours is only a Q5 3.0, not an SQ5.

spijun

I have excellent experience with ContiSportContact 5 but on passenger car

To my knowledge Continental has separate category for SUV

Continental Tyres

gk1

Cool. Thanks for the info,I had not seen those before, but they don't come in that oddball SQ5 stock size 255/40-21. Also I'm not sure there is any difference from the regular passenger car tires other than they are in larger sizes designed for many Mercedes SUVs.
The ContiSportContact 5 Contiseal in 255/40-21 on TireRack actually looks like it is for the beastly Rolls-Royce Ghost or Wraith but also load specs ok for the SQ5.