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Old 11-12-2015, 07:04 AM   #54
BimmerBobster
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Join Date: Nov 2015
Location: San Luis Obispo
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Mann filters are $26 for two on Amazon today. That seems like a good deal, I have always had good luck with their filters.

It seems like going without these filters in place would result in all that dirt and debris and unseen dust going into the system and getting plugged up deeper in the system. I'm not sure what comes first, probably the fan and I wouldn't want to listen to leaves in there, and maybe next the AC evaporator which is a little radiator with tight fins to cool the air, all of that debris would eventually completely plug the passageways through the evap and would be impossible to clean. Next is the heater core, dirt plugged on that as it gets hot seems like it would start to vaporize and smell. All of this risk to save $26 seems short sighted, meaning all would be well for a while until things get all plugged up and can't be accessed to clean without a big disassembly.

Last edited by BimmerBobster; 11-19-2015 at 06:02 AM.
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