"If it ain't broke, don't fix it." Live by it with a Benz. You have to do preventive work at times, but this is one area that you can do more harm than good. You are fine with over 1bar or 15 psi of pressure.

------------------
Benzmac:
Donnie Drummonds
1991 GMC Syclone
ASE CERTIFIED MASTER AUTO TECHNICIAN
SERVICE MANAGER FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM