Cliffnotes: I was having issues with older Continental DWSo6's on my 13 SHO. I had two with compromised sidewalls. Both bubbled but did not fail. They were manufactured 0711. Check your tires, the older tires are know to have sidewall issues. However, I am told the Continental has fixed the situation.
When I bought my SHO, it had the Continental DSW06 in 245/45/20 on it. I have a PP so clearly the stock tires were replaced. I don't know when. One tire had been replaced by the dealer Dec 2017.
About a month ago, I got a wicked vibration and pulled over. Low and behold one of the "older" tires had a huge sidewall bubble on the inside. I suspect the one that was replaced had the same issue. Both were on the front. I went to Discount Tire and had it I replaced it. So running tally, two new tires on the front and two old out back.
Last week I had another sidewall bubble in one of the older tires....grrr... Replaced it, so now I have three new and one old. I am leaving work today, to replace my last old one just for piece of mind. So now I will have four new tires, on rims I don't want. First world problems.
I talked to Discount Tire and they said the older model Continental DSW06 had sidewall issues on heavy cars with bigger torque numbers. Esp the Chrysler 300C with AWD. He said Continental did address the situation and the newer generation (the ones on my car right now) and they haven't had any issues in his particular store. The Discount I go to is in North Scottsdale, AZ and is literally right next to their Corporate Head Quarters. They are alway busy, and he see alot of the 300C.
So now to the tech part of my post. My new tires have a build date of 2817. My older tire still on my car right now has a build date of 0711. Build date on tires is easy to figure out if you don't know. Look for a four digit number. First two numbers are the week they were manufactured, and last two are year. So my new tires were manufactured the 28th week of 2017. My old ones were the 0711, so 7th week of 2011.
I really want to know when the older Conti's were put on my car, because I would assume it was in 2015. That is pure speculation. I bought my car with 51k on it. All the old tires still have 80% thread on them. The previous owner drove 10k miles a year. It adds up in my head. If that is the case, why did a tire shop put four year old (brand new) tires on a car? Like I said I am speculating.
All in all, I love my Conti's and if these tires are fixed my SHO will probably live on them for the rest of the time I own the car.
