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G-Class DIY Host
Date registered: May 2006
Location: South Texas
Vehicle(s): '04 G55, '80 280GE, '99 S420, '98 E320, 2011 E350
|Photo DIY- A/C Fan Motor R/R|
Well, so much for the Old-Wife's-Tale about "If the A/C Fan is acting Wonky.... It's 'GOT TO BE' the Fan Speed Regulator"...
After ordering and Installing a NEW Regulator? Still Wonky fan speeds.
Looking Directly into the Fan Housing/Motor (while Dimming the Garage Lights)... *SPARKS* within the Motor!!
After reading some posts (other M-B Models) where folks have Replaced ONLY the Brushes?? Hmmmm, the Methods did not look Satisfactory, to me... especially after seeing Sparks!!
Looking in EPC, I found the Fan Housing/Motor/"Hamster-Wheel" is only available as a One-Piece Unit, and costs $5-Zillion-Dollars$....
Sooo, back to an Internet Hunt ....
Come to find out, you CAN Replace the Motor itself, which is made by BOSCH.
The following post is *MY* home-brewed method of Motor R/R.
THEEEEEEEE most important thing to remember is: *BE CAREFUL WITH THE 'HAMSTER-WHEEL'* !!! Apparently THEY are Crazy-Expensive, as well!!
Warming the Hamster-Wheel, both on Removal AND on Re-Install relaxed the Plastic to Safely R/R without problem.
I also took the controversial extra step to put a tiny Drop of Loctite 496 (a Medium Strength "Super-Glue") to help hold the Wheel onto the Motor Shaft.
A [Relatively] Cheap, and Easy Repair!
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