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overheating on 1999 BMW 323i

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
i had put new serpentine belt&s new idler pulley and expansion tank belt tensioner assembly
(1) Answer
Number of questions you need to answer before replacing parts.
Manual or Auto?
Cooling fan comes on when AC is turned on?
Thermostat in working order?