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Mercedes-Benz 300SD Problems

Coolant Leak Due to Cracked/Broken Heater Core Outlet Housing on Mercedes-Benz 300SD

Problem Description and Possible Solution

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.

(2 people reported this problem)

Mercedes-Benz 300SD Vehicles With This Problem

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Average mileage: (–)
2 model years affected: 1992, 1993
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