The replacement caps are 1.4 bar. That is = to about 20 or so pounds per square inch...When hot, the hose will be tight and pressurized if all is well.

------------------
Benzmac:
1987 16V
ASE CERTIFIED MASTER AUTO TECHNICIAN
SERVICE MANAGER FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM