Quote:
Originally Posted by StartX5
Dude, i never replaced my former 1999 528i vanos/seals, I only replaced oil separator at around 145-150K miles. And it rolled until 214K miles without an issue.
PropellerH, we have the same M54 eninge, my X5 is almost 8 year-old and 91K miles in it. It's running great and i don't see/feel it's losing power at all.
M54 enine vanos rebuild procedure is not too difficult and about $60 parts compare to ~$500 the the whole BMW vanos unit. BMW don't sell just Oring/Seals for vanos and most people get vanos seals from Beisan systems. Beisan claim that their vanos seals is much better than the Buna seals that BMW install in our BMW vanos unit and last only for 20K miles!
I have Vanos seals kit here but i hesitate to replace them.
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That there is exactly my beef- the claim that the seals last only for 20K miles- Total BS meant to get people to buy before they need anything- it just expands his market that much more. It's a sales and marketing claim that people have chosen to believe despite what is right in front of them. Your car has 91K miles and is FINE. The marketing around this thing is that it's cheap enough that pretty much anyone can spend the $ and feel like it was worth it- whether it actually was or not.
I'd hesitate to replace them too. $200 snake oil on sale for $100 is still snake oil.