Coolant Bottle

G12 COOLANT BOTTLE

BMW 7 Series G12 2016-19

For your BMW 7 Series, the coolant bottle, also known as the coolant reservoir or expansion tank, plays a crucial role in the vehicle’s cooling system. Here’s a detailed description:

Functionality
1. Coolant Storage: The coolant bottle stores excess coolant that expands when the engine heats up.
2. Pressure Relief: The bottle helps to relieve pressure in the cooling system, preventing damage to the engine and other components.
3. Coolant Level Monitoring: The bottle allows for easy monitoring of the coolant level, making it simple to check and top off the coolant as needed.