how to drain coolant from radiator
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2006 BMW 325i Question: drain coolant
Answer #1Oakman October 23, 2009, 17:14Master
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.