Not really sure ;
My blower worked fine and dandy except when it didn't , then it began to not want to run on the low speed where I like it .
So , being nosy I took it all apart and found it not only filthy (normal for any air flow device) but the brushes were only like 4 MM long and the commutator was toast~ it's worn at a 45° angle so I know my new brush kit from Mercedes Source is but a band aid repair .
Once I get a bit caught up in my other works (front end rebuild , two engines , routine stuff too) I'll grab Tom and take a P-A-P tour and find one in better shape , maybe even a low use replacement one .
In general , you will always find the highest wear part , the first to fail so I'd look at the blower motor .
-Nate
Rob wrote :
>
> No, I haven't changed out the brushes. What are the signs of bad brushes?
> My blower seems to work fine at all speeds, then nothing, pointing to
> the controller.
> Thanks
>
> Rob
>
>
> On 7/26/13 3:34 AM, diesel_mercedes@yahoogroups.com wrote:
> > HVA/C blower problem cured?
> > Posted by: "Nate"vwnate1@... vwnate1
> > Date: Thu Jul 25, 2013 2:48 pm ((PDT))
> >
> >
> > Have you yet replaced the blower motor's brushes ? .
> >
> > -Nate
> > Rob wrote :
> >> >
> >> >I spoke too soon. There were more issues w/ the A/C controller, in the form of intermittent air blowing, so I swapped out with one from the PAP, which seems to work fine now. If more issues arise, I might splurge on the new one from the MB Classic Center.
> >> >
> >> >I haven't got to the MB turbo yet, as I've been working on my Wife's 240DL Volvo, which now has new suspension all around W/ springs, Bil HDs, alloys, etc. Very nice.
> >> >
> >> >Rob
> >> >
>
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