Quote:
Originally Posted by Werewolf
I am not sure I agree with you. I have not seen a newer BMW with over 200k miles let alone 600K. The closest I've seen is a e24 with 215k miles; a much simpler engine design than a double-Vanos I-6 3.0i.
Modern (2000+) BMW engines are
1) high-compression, high-revving and are more 'sensitive'
2) have more gadgets and sensors than older engines
3) sometimes have coolant-related issues (warped heads, etc)
I don't think the engine would make 600k or even 300k without a major rebuild. But I don't know if we will see one. Why? b/c the rest of the car will break down 1st / repair costs will be too much and the owner will scrap the car before the engine rebuild.
Let's wait and see
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We can debate whether typical BMW engines die at 300K miles or at 600K miles, but you've made the most relevant and practical point to this discussion: the rest of the car will break down LONG before the engine does! So if the OP is still around to hear feedback to his question, a well-maintained engine is NOT the rate-limiting factor on a 3.0i's "life expectancy".