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Old 12-14-2008, 11:23 AM
thevtechater's Avatar
Join Date: Jan 2008
Location: West Java
Posts: 40
W202 water squirting from 1 radiator hose

guys i have water squirting from my upper radiator hose. u know the big one that goes to the thermostat. i have tried replacing the clamps but water still coming out above 100 degrees. should i replace the hose or is it just an indication of a more serious problem (head gasket failure maybe?)

w202 c200 malachite green
w115 200 green
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Old 12-14-2008, 12:29 PM
Hirnbeiss's Avatar
ich fahre, also bin ich
Join Date: Mar 2002
Location: South Florida
Posts: 1,663
Is it just water? You need to have a mixture of coolant (the right kind, to prevent corrosion) and water or it will boil once it hits 100C.
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Old 12-14-2008, 12:43 PM
Registered User
Join Date: Aug 2002
Location: Southeastern PA
Posts: 3,048
Resolve the coolant leak by replacing the upper radiator hose. Then watch for other potential problems. There is no reason to presume you have a head gasket problem unless the radiator hose leak caused the engine to overheat resulting in a warped head. Deferring cooling system maintenance is not a good idea with a MB automobile.
Fred Hoelzle
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Old 12-14-2008, 02:25 PM
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Join Date: Sep 2004
Location: Seattle
Posts: 1,961
Sounds like a bad hose. They do go bad! You didn't say how old it is.

1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra
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