[JuiceQuadre]

I have ordered the o-rings from the german link provided in this thread.

So far i cant confirm if they fit as i havnent got into doing yet. The bolts to get to the inner o-ring are rounded off so ill have to take the whole thing off and deal with it at home with more tools.

ill post when i get to do it

[rsofronici]

Just replaced the vacuum pump O-ring on a 2005 E91 330xd (M57N2) for the third, and hopefully the last time.
Previously I replaced the O-ring with one that come in a kit for the vacuum pump from eBay and after a few years the O-ring needed replaced again.
This time I bought a Viton O-ring from Simply Bearings in UK (£6.46 for two pieces). The O-ring I bought has 96mm ID x 102mm OD and is 3mm round.
It fits perfect in the grove for the O-ring in the vacuum pump body but you do have to press it into the grove all the way around.
We'll see how this one lasts.

[Petersmirnoff2]

If anyone is ever looking for a m57 vacuum pump gasket kit, dudmd sells this kit for $25 and wont take super long to ship like from Europe since dudmd is based out of Washington.

https://dudmdparts.com/products/m57-...ump-o-ring-set

[Persian Whisperjet]

Originally Posted by Petersmirnoff2

If anyone is ever looking for a m57 vacuum pump gasket kit, dudmd sells this kit for $25 and wont take super long to ship like from Europe since dudmd is based out of Washington.

https://dudmdparts.com/products/m57-...ump-o-ring-set

Yeah Andrew Rodriguez is selling them too. Took me about an hour but I am slow.