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Old 04-22-2002, 09:29 AM
DJNEWK2 DJNEWK2 is offline
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Join Date: Oct 2001
Location: Atlanta Ga
Posts: 281
I don't know about your 190, but on my 560, its pretty much normal if its just a low hiss/buzz that should basically be the pump(s) working properly although if you feel it is abnormal, look over the system anway,shouldn't take long at all just to do that to be sure... Good Luck

1997 E320
1986 560SEL
1983 300SD
1972 220D
1970 250C SOLD
1971 250C SOLD
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