So, I'm reading & reading & reading on different issues that I'm experiencing w/my 80 450SL (which of course I love to death) & think I know what some of the issues are so off to find parts. I get parts & then see things like
For models with chassis serial number from 053366


How do I know if my model has this chassis serial number? Is this a from 053366 on up? I'm just use to being able to select my year, make, model & here's your part.

Thanks for any assistance.