I took the sensor fan out in the headliner by the interior lights and it is not squealing at all. Fastlane shows a heater fan for my car in addition to the main fan under the outside filter. Where is this fan and how does a person get to it?
Thanks.

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1995 S-350
370K + SOLD
1952 220B Cabriolet
39K kilometers + SOLD
1998 E300D
310K +
2012 E350 BlueTec
120K