Fixing a Common BMW B58 Coolant Leak | ITB Episode 152

The BMW B58 inline-six engine is known for its performance and efficiency, but coolant leaks are a common issue that can lead to major repairs if not addressed.

One of the most frequent failure points is the coolant hose connector behind the heat management module. The OE plastic connector is prone to cracking and leaks due to hydrolysis and repeated heat cycles, weakening the plastic over time.

In this episode of Inside the Brands, we're discussing:
Why coolant leaks are common in BMW B58 engines
How hydrolysis and heat cycles weaken the OE plastic coolant hose connector
How Rein’s upgraded aluminum coolant hose connector eliminates this failure point

Replacing the OE plastic connector with an upgraded aluminum version eliminates these weak points and helps prevent repeated failures.

🔧 Watch now to learn more.

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