personally I just replace the filters. Its a pain in the butt to wash, dry and relubricate them. and they never seem to be the same.
I would not replace them at regular Dealer Schedules, Infact i usually dont keep a car long enough to warrant cleaning or replacing them. But if I did, it would be a new set.
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2011 BMW X5 M-SOLD
1/4mile blast
2009 Mercedes E63 AMG-SOLD
2014 Mercedes E63s AMG
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