Quote:
Originally Posted by RPM90
Yes, the N54 did have HPFP failures, and the problem has been largely fixed.
Once the recall was issued, all replacements since then have held.
N55's, if they have the newest pump, also don't have HPFP failures.
So, this problem is one that plagued the N54, but no longer.
To say, "...and various other turbo problems.", is really an incorrect assessment.
As for turbo failure, they are as likely to fail as any other mechanical part in/on the engine. Fact is, BMW turbo failure is rare.
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Just from the first page of the maintenance forum:
http://www.1addicts.com/forums/showthread.php?t=712843
http://www.1addicts.com/forums/showthread.php?t=704584
Two threads with multiple people having turbo failures, with a few a 33k. Fact is, it's not rare.
Maybe we should check elsewhere? Oh look, on the front page of the 1Series section of GetBMWParts.com it's replacement turbos on discount, before any other part.
http://www.trademotion.com/partlocat...egoryID=132126
Funny, I don't see other engine parts like cam shafts on that first page.
Quote:
Originally Posted by RPM90
Carbon buildup occurs in any internal combustion engine, including normally aspirated engines. The increase in carbon buildup issues with many modern engines is due to direct injection where the fuel can't help clean some of it away. The 328i NA engine is a direct injection engine as well, thus it to has a greater chance for carbon buildup.
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Wrong again cupcake, the N52 does not have direct injection. You might want to do a do a little bit of fact checking before you spout your nonsense.