Is my Tein Basic blown? What to do?
 

I noticed a creaking sound coming from my left rear driving the other day after bringing it out of storage from winter.

Closer inspection, I see my left rear lowered where my wheel is now tucked under the fender, is it bottomed out? Blown?

It's about 4 years and 40K KM/20K Miles.

Anyone have experience with getting it rebuilt at Tein in LA? Cost, time, customer service, etc?

I do not know the answer to your question, but I am interested in what you discover.

perhaps some pictures of the coilover and wheel fitment would help.

I think you should see that the damper has an oil leak if it is blown.