This is the heater core for BMW E46 3 series and E83 X3. The heater radiator uses hot engine coolant passing through the core create heat to warm the cabin. The blower motor moves this heated air into the interior of the car. If a heater core develops a crack or leak, it is likely that moisture will condense on the inside of the windows and the smell of anti-freeze may be apparent. Made by Behr.
This item fits the following BMWs: 1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M3 2004-2010 E83 BMW X3 2.5i X3 3.0i X3 3.0si
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