Check the grill?

Sorry, I couldn't resist .....

I believe the little blower pulls air in from the overhead grill in the interior light cluster ......

Haasman

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'03 E320 Wagon-Sold
'95 E320 Wagon-Went to Ex
'93 190E 2.6-Wrecked
'91 300E-Went to Ex
'65 911 Coupe (#302580)