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  #1  
Old 02-05-2012, 10:44 PM
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Conti ExtremeContact DWS tire pressure

I finally got a chance to trade in my stock X5M RFT tires for a set of Continental ExtremeContact DWS (same tire sizes as stock). The shop that installed them inflated them to 38 PSI. I am wondering if tire pressure BMW recommends for X5M stock tires is still valid for these non-RFT tires (probably not) and if so, what pressure should I run?

At 38 PSI cold, it visually looks like tires are under-inflated, especially in the front.
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Old 02-05-2012, 11:11 PM
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I have the same tires and run about 38 as well. How do you like the tires? I can not get them balanced for some reason
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Old 02-06-2012, 10:06 PM
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Quote:
Originally Posted by Rez View Post
I have the same tires and run about 38 as well. How do you like the tires? I can not get them balanced for some reason
I have not been able to go faster than 65 Mph yet, but i did notice steering wheel vibration that started at around 55-60 Mph. The shop that installed the tires obviously balanced them, but I read A LOT of posts on the Internet about people having vibration issues with these tires and decided not to even bother with re-balancing them since it wont do anything.

I had to get rid of stock tires after having a very scary experience on a snow-covered street 2 days after I took delivery. I tried braking, but the foking thing just kept going like nothing happened - no change of speed or direction. Good thing the street was completely empty and i was going straight at about 25 mph. Took about 5 seconds to come to a stop. I'll take a little steering wheel vibration over that any time. Plus, don't forget that these tires are symmetrical, so they can actually be rotated left to right and may last longer.
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Old 02-07-2012, 09:47 AM
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Aren't your stock tires high performance summer only? Shouldn't be driving them on snow. Looking to replace mine with the DWS too but didn't know about the vibration issue.
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Old 02-07-2012, 08:20 PM
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Quote:
Originally Posted by ek1 View Post
I have not been able to go faster than 65 Mph yet, but i did notice steering wheel vibration that started at around 55-60 Mph. The shop that installed the tires obviously balanced them, but I read A LOT of posts on the Internet about people having vibration issues with these tires and decided not to even bother with re-balancing them since it wont do anything.

I had to get rid of stock tires after having a very scary experience on a snow-covered street 2 days after I took delivery. I tried braking, but the foking thing just kept going like nothing happened - no change of speed or direction. Good thing the street was completely empty and i was going straight at about 25 mph. Took about 5 seconds to come to a stop. I'll take a little steering wheel vibration over that any time. Plus, don't forget that these tires are symmetrical, so they can actually be rotated left to right and may last longer.
I have tried to balance them 5 different times now, still have an annoying shake around 70mph. This has ruined the driving experience for me. With only 1500 miles, I am thinking of taking them off and move on, problem is not sure what to get instead. One shop told me my wheel was bent so I ended up buying a new wheel to no avail.
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Old 02-08-2012, 12:53 PM
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Initially when I had the Continentals installed I did notice a vibration at the higher speeds but it wasn't that bad that it affected my driving, but just enough that I was aware of it. I never considered changing them out but was planning on getting them rebalanced. I never did find the time to bring it to the garage and after awhile the vibrations were no longer noticeable (gone.)
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