Venting cooling system
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2014 BMW X6, 2013 BMW X6, 2012 BMW X6, 2011 BMW X6, and 2010 BMW X6. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Do not leave the coolant expansion tank cap open during the venting procedure.
- Open vent plugs on coolant feed lines to turbocharger.
- Add coolant up to top edge of expansion tank. Coolant level must not drop further! No drop in coolant for approx. 1 minute. Close vent plugs on turbocharger when coolant emerges.
- Set heater to maximum temperature. Press Automatic button. Then turn blower down to lowest stage for a minimum period of 5 minutes.
- After switching off heater pump, add further coolant up to top edge of expansion tank.
- Check cooling system for leaks.
- Close expansion tank.
- Start engine. Allow engine to idle for approx. 1 minute. During this period, press accelerator pedal 3 times (each time lasting 5 secs.) to approx. 3000 RPM.
- Warm up engine and activate map thermostat via BMW diagnosis system.
- When engine has cooled down, check coolant level and adjust to max.
Close coolant expansion tank.
Installation:
Close cap (1) on expansion tank (2) until arrow markings are flush.