I replaced my assembly with another one from Germany that was used. It cracked later as well. I am now trying to rebuild but in the mean time have capped the coolant hoses. Should I loop the circuit?

__________________
-- Chris

'95 E300, 216k miles, Silver Surfer
'05 E320 CDI, 138k miles
'07 S550 4matic, 69k miles

Gone but not forgotten:

'76 300D, 350k miles?, SOLD in 1995
'75 240D, 300k miles, SOLD in 1991