The CD will greatly improve your chances of getting the mechanical repairs done quickly and right the first time...
There is a reseal kit offered for the P/S sector, however, I STRONGLY suggest that you leave this up to a certified tech. There are specific rotational frictions that should be set up inside of a sector after coming apart. Take it from me and leave this to the pro.
1981 280GE SWB
ASE CERTIFIED MASTER AUTO TECHNICIAN
SERVICE MANAGER FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM