I purchased a new pump from a Jetta from eBay for $25, (part #1H0 962 257 F) and went ahead to swap the motors/graphite disks while I was draining my oil today. Took apart my pump only to realize all my disks were in tact.. I only found an extremely small defect on the outside of one the disks and scraped off the extra graphite so it was smooth. I was shocked that all the parts were in tact so I re-assembled it.
After it was all plugged back in, I tested it and it was just as loud as it was before. I'm not sure, but I think my locks are quicker.. My driver's door lock is definitely quicker but all others seem the same. Tested out my sunroof and it was working properly.
One thing I noticed is that the graphite disks do not all line up perfectly, like on the jetta pump. The top disk appears to be more of an oval shape compared to the 2 under it
B5 pump

Left: Jetta pump Right: B5 pump

Even after I put everything back together with the insulation and such, the pump is just as loud. Is it normal for the pump to be so loud? I'm not quite sure what else could be wrong. The vacuum tubes all seem fine because I can hear the pressure release from the pump after locking the car (while it was out of the insulation).
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