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How to Check and Refill the Antifreeze in a BMW 3 Series

Model: BMW Serie 3 E46 - Years 1998-2006
Part: Antifreeze coolant

Release and lift the hood. Now, remove the cap from the antifreeze circulation system for the radiator. Prepare a container to collect the fluid you are about to extract. The cap is located on the lower part of the hood, so you should place your vehicle on jack stands. Now, open the upper cap of the fluid reservoir. After replacing the lower cap, refill the fluid in the appropriate opening. Once done, replace the upper cap, and you're finished.

Updated on 24 February 2026 by ScegliAuto

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