What does the aspirator blower do???? 93 w140

[BmwTek]

I am wondering what the aspirator blower is.. could that be why i do not get the appropriate amount of air blown from the climate control????

I just took the overhead console off and i see the small aspirator.. but i dont know how to take it out... dont want to break it.. I did the test with the piece of paper.. it did not work.. help me out guys

[Benzmac]

This motor pulls air over the interior temp sensor all the time. If the key is on, the motor should run.
Hope this helps. IF the blower is not functioning properly, you should check the blower regulator and the filter.

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Benzmac:
1981 280GE SWB
1987 16V
ASE CERTIFIED MASTER AUTO TECHNICIAN
SERVICE MANAGER FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM

[RAYMOND485]

2001 E320 47000
Push In Two Rear Light Covers Clips, Overhead Front, Pull Down And The Aspirator Is Under The Grille Pull Wire Plug And Use A Small Flat Screwdriver To Help Pull The Unit Out, And Turn On A/c And Motor Will Run Use Light To See Fan Is Turning On Three Sides Is A Slot To Check, Use Vacuum To Clean, The Unit Is Working The Temp Is Control, Clean Two Light Bulbs 1/2 Hr Diy, Save Gas And Power Increase It Was Always Cold, Now Ok, Thanks To Greg B, 98 S500

[anziani]

I have a couple of 124's, a '87 300E and a '95 E420. Did these cars come with an aspirator motor for the interior temp?
Thanks,
Anziani

[sixto]

I believe any MB with auto climate control has an aspirator motor. At least any from the early 80s through the mid 90s.

Sixto
93 300SD

[anziani]

Sixto,
Thank you for the info. I did the tissue test on my '87 and got nothing. I'll try the '95 today.
Anziani