I only use Akebono brake pads... these are the best and I will not recommend
anything else... even factory pads. I buy my Akebono pads from Rockauto.com
As for the SBC system, my friend with 2004 CL500 did his brake job and he
said nothing was special... he changed it just as a normal car brake system.
Be absolutely sure to keep key out of the ignition and everything off. Leave
car unlocked, window down... don't just unlock... the car will lock again
unless you opened the door and closed it again.