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#1
12-05-2007, 03:23 PM
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Coolant Hose Life
What's the recommended time to replace coolant hoses? My car is over 10 years old and they've never been changed. The all "look" good on the outside. I have had one recent issue in which I had the headgasket changed and the indy replaced the coolant and I've had a leak from the where the hose attaches to the water pump. I've tightened the clamp and hopefully that will eliminate the leak. Seems as if the removing and reattaching has stretched the opening ("mouth?") of the hose a little. Is there some sealant that is used when attaching hoses? Wondering if they should have all been changed when the headgasket was done. All the hoses combined come to less than $50. Labor should have been minimal since everything was apart and drained. Opportunity missed?
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#2
12-05-2007, 03:26 PM
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Usually, if hoses are going bad, they'll show cracks if you squeeze them with your hand.
__________________
" We have nothing to fear but the main stream media itself . . . ."- Adapted from Franklin D Roosevelt for the 21st century  OBK #55 1998 Lincoln Continental - Sold Max 1984 300TD 285,000 miles - Sold The Dee8gonator 1987 560SEC 196,000 miles - Sold Orgasmatron - 2006 CLS500 90,000 miles 2002 C320 Wagon 122,000 miles 2016 AMG GTS 12,000 miles
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#3
12-05-2007, 04:22 PM
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No sealant when attaching hoses, just a hose clamp. Check that the clamps are tight and look for cracks. It would've been easier to replace the hoses when the block was drained and the head off, it's still not too difficult, but they have to redrain and refill the coolant.
Hoses tend to last about 10 years or so, give or take.
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#4
12-05-2007, 07:29 PM
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Oil
Hi,
I've been there. If you replaced the head gasket, it was because you probably got coolant mixed with oil. If oil got in the cooling system, you do need to replace all hoses. They will start to fail one after another. Oil eats hoses' rubber. It's easy and cheap. Regards, Juan
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----------------- Juan 1995 E320 Sedan 2008 Ford Escape RC Helicopter
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#5
12-05-2007, 07:37 PM
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Modern OE cooling hoses should be good for at least 10-12 years. Mercedes uses really good hoses so I have seen some that are still good after 20, 25, even 30 years.
But if it were my car after 10-12 years I'd change at least the upper thats whats goingto blow first. Around 15 I re hose the whole engine bay. I'm slowly doing the SDL because most of the heater hoses in back are $80-$100 so I do one a year.  Only 2 left.
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2016 Corvette Stingray 2LT 1969 280SE 2023 Ram 1500 2007 Tiara 3200
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#6
12-05-2007, 08:51 PM
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I think mileage and time both should be considered. I have replaced all the hoses on my 95 E320,,, 133K. While the hoses on my 95 SL with 62K still seem to be like new.
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95 SL500 Smoke Silver, Parchment 64K 07 E350 4matic Station Wagon White 34K 02 E320 4Matic Silver/grey 80K 05 F150 Silver 44K
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