George - where did that max 29psi info come from? I've never been able to find an actual pressure number recomended by Mercedes before. I have also heard that in the early 90's Mercedes recommended pressure bleeding for ABS systems using AT LEAST 30psi. Never saw that in print either. The "pump the pedal" bleeding method is shown in the Mercedes maintenance manual as acceptable for my '99 and I would think that the psi generated by pumping the pedal would be more than 29psi. Certainly a panic braking while driving would be significantly more than 29psi. BTW, I do use a pressure bleeder and try to use a pressure of 25psi or more.

Len