2006 BMW 325i Q&A
2006 BMW 325i Question: drain coolant
Most radiators have a "drain plug" though some new cars do not. If there is no drain plug on the radiator of your 2006 BMW 535i then removing the lower radiator hose at the radiator should do the trick. Remember to dispose of any used coolant properly. Coolant is considered a hazardous waste and should be disposed of properly. - Oakman
I need to know how to replace the crack water resporvoir on my BMW
I replaced the expansion tank on my bmw 325i and drained the system. What is the proper procedure for adding coolant to the radiator. How do you know that you don't have a air pocket in the system....