I saw your post about your subframe replacement back in 2011.
Do you remember the date and location you had it done.
My 450SL (USA) has a broken subframe, like all the rest, at the driverside wheel alignment bolt.
MBUSA customer assistance 800-367-6372, tells me there are no active repair campaings for my car.
If you have any documentation you could share, I am sure it would help me in my quest to have MB repair the car.
Thank you
Dr.Phil
email - maxxsteele@gmail.com