I haven't attended one of the DIY sessions - I have them in my own garage all the time! My understanding is that you are welcome to bring parts. The dealership parts department is open, but of course there is no guarantee they will have the required bits in stock.

Supposed to bring your own tools too.

Two hours is a good estimate for the first time R&Ring a fan on a 124. Could probably do it in 45 minutes on subsequent attempts.

- JimY