turbo charged engines.reliabilty? - Page 2

Alan Smithee · #1 08-30-2011, 06:41 PM

Quote:

Originally Posted by JCL

BMW introduced a production turbocharged vehicle in 1973, almost 40 years ago. This isn't exactly a new concept.

...and up until the twin-turbo 3.0 N54, they only built one other turbocharged gasoline model (the 745i, in very limited numbers, in the early 1980s). A new concept? No. Has BMW proven long-term reliability with gasoline-powered turbos? Hardly.

nd200 · #2 08-30-2011, 10:26 PM

there's no need to worry about the fact that it is a turbo engine unless you are going to own the vehicle long term (8+ years and/or 120,000+ miles).

aimtimes100 · #3 08-30-2011, 11:12 PM

miles on JCL's 5 series and BGM's X vehicles please?

BGM · #4 08-30-2011, 11:38 PM

Quote:

Originally Posted by aimtimes100

miles on JCL's 5 series and BGM's X vehicles please?

My first X5: '01, 3.0, 105K miles bought new (only retired because it got totaled--hit by someone), no issues. Current: '08, 25K miles.

ard · #5 08-31-2011, 12:46 AM

Quote:

Originally Posted by aimtimes100

miles on JCL's 5 series and BGM's X vehicles please?

I actually laughed... what possible relevance could these numbers be to your question?

Quote:

opinions on bmws turbo charged engines? i dont know much about the E70 ones but from what i heard about the 3 series coupe there typically bmw(not realiable) but however in 2013 bmw is releasing a new turbo charged 4 cyl engine.looks like they're trying to compete with audis 4cyl considering audis outputs 211hp and bmws new engine outputs 240hp.how are the engines on the general the smaller the engine, the more reliable it is but in a bmw, anything can happen.opinions?

not sure where you are going with this- (BMW competing with Audi, but smaller engines are more reliable..but maybe not BMWs...pass me a period, comma and space, please.)

Your questions is unanswerable. Well, actually you ask for 'opinions' so you can collect up opinions. But if you are looking for data from which to draw a supported conclusion, you will not get that on a forum.

So carry on, many more posts for sure...nonsense like 'the e70 is heavier and that will stress turbos more', or 'more parts on the turbo means less reliable' (uh, duh- but that assumes EVERYTHING else is the same, which it is not...like mixing apples and crankshafts)

I predict you will conclude precisely what you want to conclude.

JCL · #6 08-31-2011, 01:20 AM

Quote:

Originally Posted by aimtimes100

miles on JCL's 5 series and BGM's X vehicles please?

For my 535i, 50,000 km when I sold it. But that has very little to do with reliability, which is what the thread title was about. It could relate to durability, ie will the engine last 300,000 or whatever the target is. The important thing from a reliability standpoint is that it went four years with zero turbo issues. If the rest of the vehicle was as reliable as the turbochargers then half the posts on this forum wouldn't be required, we'd just be driving them.

I have only owned three turbocharged vehicles (535i, Landrover diesel, VW diesel), but I have worked with turbocharged engines (diesel and natural gas) for 24 years.

BGM · #7 08-31-2011, 09:50 AM

Found this--interesting.

Class action suit alleges BMW N54 turbo engine unsafe, causes Unintended Deceleration

DeanLinAZ · #8 08-31-2011, 11:17 AM

Well, after everything has been said, and, everybody has had a chance to say it, I think I will just drive my 2011 X5 35i, with the twin-spool turbo and enjoy it. I don't think the turbo or any other vital parts will fail before I get tired of the vehicle and sell/trade it for something newer and more complicated.