coolant hose replacement?
Thread Starter
Super Member
Joined: Jan 2008
Posts: 508
Likes: 1
From: california high desert
2003 S500, 03 C240, 03 E320, 03 tahoe
coolant hose replacement?
is there a scheduled maint replacement for all the rubber coolant hoses? or are they designed to go the 15 year/150,000 mile distance on the coolant. 
Senior Member
Joined: Dec 2011
Posts: 401
Likes: 46
From: Ontario, Canada
MB 2003 S600. Volvo 2003 XC70.
I don't see scheduled replacement for rubber hoses. Kind of lifetime or break/replace stuff. Never saw rubber hoses replaced together with coolant.
Actually oil is the biggest enemy for rubber. That's why Crank Ventilation hoses hardened after years and need to be checked and replaced since those hoses suck oil vapor from crank case to intake. Coolant or water won't eat rubber so I guess your hoses are fine.
Thanks.
Howard
Last edited by haoz129; Apr 26, 2012 at 11:04 PM.
Thread Starter
Super Member
Joined: Jan 2008
Posts: 508
Likes: 1
From: california high desert
2003 S500, 03 C240, 03 E320, 03 tahoe
thanks for the input
Cobra,
I don't see scheduled replacement for rubber hoses. Kind of live time or break/replace stuff. Never saw rubber hoses replaced together with coolant.
Actually oil is the biggest enemy for rubber. That's why Crank Ventilation hoses hardened after years and need to be checked and replaced since those hoses suck oil vapor from crank case to intake. Coolant or water won't eat rubber so I guess your hoses are fine.
Thanks.
Howard
I don't see scheduled replacement for rubber hoses. Kind of live time or break/replace stuff. Never saw rubber hoses replaced together with coolant.
Actually oil is the biggest enemy for rubber. That's why Crank Ventilation hoses hardened after years and need to be checked and replaced since those hoses suck oil vapor from crank case to intake. Coolant or water won't eat rubber so I guess your hoses are fine.
Thanks.
Howard
Senior Member
Joined: Mar 2011
Posts: 277
Likes: 0
From: Nebraska
2005 CLK500 cab, 2004 S600 designo mocha
Sort of. Well many shops that I know of put Bars Leak in with the new coolant. Like AH1W-Cobra said, many times a small leak will develop because it was previously clogged up with crummy coolant junk. I do the same thing with my coolant changes.
It's a piece of cake too, don't even touch the coolant hoses unless they are visibly cracking. There's a little drain plug under the radiator, fill through the coolant tank. Piece of cake. Just make sure you get the correct coolant.
It's a piece of cake too, don't even touch the coolant hoses unless they are visibly cracking. There's a little drain plug under the radiator, fill through the coolant tank. Piece of cake. Just make sure you get the correct coolant.
