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#11
07-29-2015, 02:51 PM
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Quote:
 The valve stem seals are not a cheap repair. And from what the indy shops I talked to told me and what I've read, the smoke doesn't really do any damage other than causing you to top off the oil on a regular basis (check every gas fill-up). If you want to put off the repair until you can save up for it, you can try a high mileage oil or a stop-leak, seal-swelling oil additive. Liqui-Moly is a brand which I've seen mentioned and recommended frequently. But I don't have personal experience with it.
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2006 X5 4.4i Sport package, summer package, cold weather package, DSP + Nav Bought 2/14 with 73k miles 
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#12
07-30-2015, 03:06 AM
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If your area allows it (temperature wise) 20w50 can help. I run it in the X and only get smoke if idling for 15 minutes or more. Never at stop lights.
My brother in law is planning on buying the X in October so I'll tell him it will need valve stem seals in the future, it's expensive, and no I won't do it for you. LOL. If he ends up not buying it, I'll fix it when the oil consumption gets ridiculous or the smoke starts appearing at stop lights.
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2005 X5 4.4i Build 04/05 Maintenance/Build Log Nav, Pano, Sport (Purchased 06/14 w/ 109,000 miles) (Sold 8/15 w/121,000 miles) 2006 X5 4.8is Build 11/05 Maintenance/Build Log Nav, DSP, Pano, Running Boards, OEM Tow Hitch, Cold Weather Pckg (Purchased 08/15 w/ 90,500 miles) 2010 X5 35d Build 02/10 Nav, HiFi, 6 DVD, Sports Pckg, Cold Weather Pckg, HUD, CAS, Running Boards, Leather Dash, PDC, Pano (Purchased 03/17 w/ 136,120 miles)
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#13
08-02-2015, 11:42 AM
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It's almost 100% the valve stem seals. Same exact symptoms on my 4.4i.
I respectfully disagree with Doru. I just finished this job, and after wrenching on cars for 20+ cars I can say this is just about the worst job I've ever done, even WITH the camshafts removed. Visibility is poor, access is tight, to remove one thing requires loosening or removing several other parts. I broke open the A/C lines just to get access to everything. I now have the AGA N62 valve stem seal toolkit for sale.
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2015 BMW X5 xdrive35i Msport 1999 Porsche Boxster 1974 Porsche 914 GT restomod
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