The W126 has an airbag instead of a glove box. You need to remove the panel under the dash on the passenger side and stand on your head to see the blower . It's between the end of the heater box and the right kick panel. The foam adapter to the tube has a tendency to deteriorate.

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Gregga
'89 420 SEL "Moby Dick"
'30 Ford Coupe
'31 Ford Slant Windshield Town Sedan
'33 Ford Pickup
'34 Ford Pickup
'01 Honda Passport