In my experience, once the heater core is contaminated externally, you will never get rid of the smell unless you remove it and wash it. At that point you can pressure test it directly.
I had a smelly heater core in a VW, I removed the core and pressure tested it and it didn't leak. What I suspect is that a PO put stop-leak in the system after the leak started, sealing it. But the smell remained until I cleaned the core. Actually I just replaced it because I didn't want to deal with any later problems. Allan On Tue, Apr 24, 2012, at 05:16 PM, Randy Bennell wrote: > Well, obviously, there are no guarantees, but, if it won't hold > pressure, then it is leaking somewhere. If you cannot see evidence of > leakage under the hood, then it may be sufficient evidence to cause you > to look further into it. > > One other alternate idea might be to disconnect the heater core and > flush it out with water to rid it of the anti-freeze and then run for a > bit with the heater core out of the system and see if the smell > disappears. I am not familiar with your particular car but if there is a > heater hose in and one coming out, one should be able to connect the two > hoses together under the hood and leave the heater core out of the loop. > > Randy _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
