Hey Gilly and M.B. Doc, I just had my car up on floor jacks and was looking around that area. Are you talking about a o ring failure where the heater hose goes through the engine lifting eye and into the block? I spotted where the dealer said the crystallized coolant was on the passenger side block but after driving for a while it was still dry. If it was the head gasket leak it should be wet, non?

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dtf
1994 E320 Wagon (Died @ 308,669 miles)
1995 E300 Diesel (228,000)
1999 E300 Turbodiesel ( died @ 255,000)
2006 Toyota Tundra SR5 AC 4X4 (115,000 miles) rusted frame - sold to chop shop
2011 Audi A4 Avant (165,000 miles) Seized engine - donated to Salvation Army
BMW 330 xi 6 speed manual (175,034 miles)
2014 E350 4Matic Wagon 128,000 miles
2018 Dodge Ram 21,000 miles