RepairPal Certified shops can diagnose and repair your 2000 BMW 528i. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
bad water pump--easy replace btw, and/or replace thermostat with a cooler running one and drill 2 3/16 holes in it 180 degrees apart from each other. or someone put stop-leak in it and the radiator is clogged.