PeachParts Mercedes-Benz Forum - View Single Post - Oh boy, here we go. Coolant leak that pressure test won't find. 202

dpetryk · #4 07-22-2007, 12:39 AM

Radiator hoses rot from the inside out. Its common for a leak to develop from the inside to the fabric weave layer of the hose. The coolant migrates through the weave until it reaches the end of the hose where is escapes. Looks like the leak is at the end of the hose but it is really from inside somewhere. replace the hoses.