![]() It can be difficult to dislodge without using the waterpump and gravity to create pressure to move it. Get your mechanic to rev the engine while bleeding and possibly raise the front end (ensuring the heater is also turned on and verify that the heater control valve is working and not jammed - typically the air pocket forms in the heater core during cooling work (drain & refill). ![]() When the light illuminates, it is important to stop the car immediately and check the coolant levels. Very common on the 3 series e46 with the M54 engine. The BMW Low Coolant Warning Light is a visual indication of insufficient coolant levels in the vehicle. However on the 3 series when this happens & your driving (or giving higher RPM) the force from the waterpump draws the coolant from the ET (where the coolant level sensor is) and the low coolant light illuminates - when you get to an idle (or shut off the engine) the coolant draws back to the ET and the level is fine - the air pocket moves to the highest area of the cooling system - typically the heater core. It is common for the light to come on during a temperature change to cold weather due to contraction. ![]() I am in the process of bleeding the cooling system in my 2005 X3 3.0. The issue you describe is quite common on the M54 engine (X3 2004 - 2006) & in other BMW's It's due to an air pocket trapped in the coolant system. This video explains how to check and add coolant to your BMW. 2005 E83 Electronic cooling system bleed process. Retail Price (USD) Preferred Price: 19.29 Save: 9.00 Learn More Package Size. ![]() Compatible with all other antifreeze and coolant colors Warning - Click here for Proposition 65 information for this product 28.29. You didn't say the year of your X3 - there was an engine change for the 2007 model. Auto/Light Truck 2006 BMW X3 2.5L 6 -cyl Engine Code M54 3 Print View. ![]()
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