Running in the new air conditioning compressor
WARNING: This page is about a different car, the 2025 BMW M4, 2024 BMW M4, 2023 BMW M4, 2022 BMW M4, and 2021 BMW M4. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
RISK OF DAMAGE
Mechanical damage to the new air conditioning compressor.
An increased quantity of refrigerant oil in the new air conditioning compressor can cause mechanical damage.
Mechanical damage to the new air conditioning compressor.
An increased quantity of refrigerant oil in the new air conditioning compressor can cause mechanical damage.
- Perform the running-in procedure.
- Do not exceed the idle speed during running in.
NOTE:
TECHNICAL INFORMATION
The intake process for the new air conditioning compressor can be performed either manually or with a diagnostic system.
The intake process for the new air conditioning compressor can be performed either manually or with a diagnostic system.
- Manual:
- Switch off the air conditioning.
- Set all ventilation outlets in the dashboard to "OPEN".
- Start the engine and allow the idle speed to stabilize.
- Set the blower output to a minimum of 75% of the maximum blower output.
- Switch on the air conditioning and allow the engine to run at idle speed for a minimum of 2 minutes.
- Switch off the air conditioning and blower.
- Stop engine.
- Perform the following sen/ice function with the diagnostic system:
- Body
- Heating and air conditioning functions
- Run-in protection for A/C compressor