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Old 12-29-2009, 12:33 AM
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HT417 HT417 is offline
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Location: Oberpfalz, Germany
Join Date: Dec 2007
Posts: 835
Mein Auto: 2008 BMW X5 3.0si
Originally Posted by XXX555 View Post
I understood the US mods were to soften valve clatter noise only and are of a nature that should not alter reliability.
It's deeper than that. I think this informative post from Santo will answer the question of what's been changed. I would recommend reading the PDF first and then following up with chapters 4 & 5 from the media event.

My biggest concern, possibly baseless, is the change in wrist pin offset. If this is a north america only engine that was just introduced last year, then its track record is very short.

This post, in particular, raised an eyebrow. Most likely a "one-off" but does this reflect the US mods? At this point there probably wasn't a large population of X5d's in country and therefore the failure rate, percentage wise, is higher.

Craig B and jaaX3 have also experienced the joys of warranty repair within the first year of ownership.

Clearly, patience and, as stated above, a nice warranty are you and your BMW's best friend.
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