TÜV at the MB branch?

my car is already 3 years old these days and is therefore due for the technical main and exhaust gas examination. Also the Ndl, where I bought it, assyst-moderately wait and to which I maintain a fair customer relationship for many years, felt obviously obliged to point out to me the upcoming event. Incidentally in these days also a ‘big’ Assyst (‘B’ at CL203) at about 98 tkm is approaching. With previous vehicles I have the main and exhaust gas search and was sometimes also grateful for the sparse tips from an independent neutral. So the question arises whether I should have the TÜV done for the first time together with the Assyst by MB-Ndl. Do they give me the badge for the next 2 years? Do you want the TÜV to do the examination in about (+/- 10%) as much as the TÜV? What do you have for experience with the TÜV at MB? Thanks in advance nebumosis