Peter, thanks for coming in on this - it was the possibility of perhaps a computer reset to account for the replacement of front and rear disc rotors, plus front and rear pads. The job was quite a saga, carried out by qualified and competent mechanics that have been responsible for the servicing of my Holden Captiva and our Honda Jazz. The parts used were partially Mercedes (rear rotor and rear pads) with the front rotor after market as well as aftermarket front pads.
Initially after many hours of work, bleeding and rebleeding the system both conventionally and one caliper at a time, the mechanics could not get a satisfactory pedal at the time. They were at their wits end, and initially replaced the Master Cylinder (without improvement) and then the Brake Servo unit, again without the desired improvement. We also re-fitted the original front pads that were like new but, again, there was no improvement. With engine switched off, the brake pedal was as hard as a rock, but the moment you would start the engine, the pedal became very soft and would depress a long way. We did seek help and assistance from a couple of very capable sources, but could not get them to attend personally even though money was offered.
In the end, I took it upon myself to testdrive the car for a lengthy distance, and the further I went, the more of an improvement was achieved - even though the pedal was still a little soft. The car was also subject to further work by a qualified mechanic specializing in Mercedes work and he felt that the brakes felt okay - there was really nothing that he reckoned that could be faulted, but he was not prepared to investigate as he had not done the work in the first place. A bit hard for me to comprehend, especially as payment was offered.
Peter, those same original mechanics fitted new front brake rotors and front disc brake pads to my Captiva, and I obtained those parts from suppliers in Victoria. I have experienced absolutely no issues and it cost me $130.00 for the rotors, $79.00 for "top" specifications dust free pads, and for a further $135.00 in labor charges the car was returned to me all finished and working perfectly. I mention this as, obviously I fitted after market pads, with no detrimental effects. From memory, the pads were of EBC manufacture, a highly regarded brake component manufacturer.
It is some time since I have had contact with SEL69L, but I am certain that he would have let me know of any brake issues that his car may suffer from. Regards Styria