Car Problem Reports

Mercedes-Benz S420 Coolant Leak Due to Cracked/Broken Heater Core Outlet Housing

 
Mercedes-Benz S420 Problem
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Model Years Affected: 1994, 1995, 1996, 1997, 1998, 1999

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A cracked or broken heater core outlet housing can cause a coolant leak near the bulkhead (firewall). Our technicians remind us that coolant leaks should be repaired in order to avoid overheating the engine due to coolant loss.

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