I bought a bushing from Whiteline based on THEIR database of what is approved for a 2011 Audi A3. Unfortunately, I bought the factory manual after I ordered and attempted to add the bushing to the car. If I had the factory manual first, I would have never ordered the bushing and spent $900 to add it to the car. I contacted Whiteline based on my experience and sent the pages from the factory manual illustrating the problem with their database. I was disappointed with Whiteline's response, which was "we'll look into it". Six months later, their database hasn't been changed. It pays to have the factory manual before buying from online vendors, even the expert ones. I highly recommend the manual.