LEMON Manuals: Even more car manuals for everyone
Home >> BMW >> 2025 >> 230i >> Repair and Diagnosis >> External Pages >> Different car >> Section 299 (General Orphan Data (1 Of 2)) >> Fill and vent the coolant circuit

Fill and vent the coolant circuit

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2023 BMW M240i xDrive, 2023 BMW M240i, 2023 BMW 230i xDrive, 2023 BMW 230i, and 2022 BMW M240i xDrive. However, it is still accessible from the selected car via links, so may be relevant.

Fill and bleed the high-temperature coolant circuit 

NOTE: RISK OF DAMAGE 
Inadmissible activation of the high-voltage system with drained coolant. 
Damage to components (in high-voltage systems). 
  • Mandatory  fill the coolant circuit before  activation of the high-voltage system.
NOTE: TECHNICAL INFORMATION 
It is mandatory  to fill the cooling system before bleeding.
Fill both  the circuits for high and low-temperature coolant circuits.
G14435119Courtesy of BMW OF NORTH AMERICA, INC.