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#3
6th March 2012, 06:39 PM
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It's the pump itself that wears out very often, you can buy repair kits with graphite parts instead of plastic that are supposed to wear out less.
But in those cases there is whirring from boot but no sucking. In other cases motor fails because of brush and commutator wear or corrosion Third cause is PCB fault mostly because of water ingress.
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Currently 8less 2011 Q7 S Line 3.0TDI, 2016 Tesla Model S 90D 8 history: 2006 A8 Sport 4.2TDI quattro SOLD, 1997 S8, reached end of life with gearbox failure 
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