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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E39 (1997 - 2003)

E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 02-23-2013, 02:40 AM
4given 4given is offline
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Audi 4.2 swap?

Could this be easier than the LS swap? I would think the electronics would match up easier and it should be easier to bolt up to the ZF tranny's too.
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  #2  
Old 02-23-2013, 04:16 AM
HTK12 HTK12 is offline
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Why on earth would you do that? I'm guessing your thinking at the 4.2L V8 that was on A6 C5? I would never even consider that engine.
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Old 02-23-2013, 04:40 AM
4given 4given is offline
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I've heard that the newer 4.2 V8's are really good. It was just something a buddy and I were talking about this morning. I think I saw an Audi S4 with a 4.2 badge on the back. Just a thought I guess.
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Old 02-23-2013, 07:29 AM
HTK12 HTK12 is offline
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Quote:
Originally Posted by 4given View Post
I've heard that the newer 4.2 V8's are really good. It was just something a buddy and I were talking about this morning. I think I saw an Audi S4 with a 4.2 badge on the back. Just a thought I guess.
Well what do mean by newer? I think audi used the same 4.2 V8 until 2005. It has the chain at the back of the engine which means dropping the engine+transmission to do timing job on it. Any newer engine than that and the electronics are going to be a major PITA.
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Old 02-23-2013, 07:34 AM
geargrinder geargrinder is offline
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Thats a whacky idea.

The older Audi big V8's arent bad but the newer ones have a long-term maintenance nightmare issue surrounding fact that cam chains are on the back of the motor. Imagine exact same M62/S62 chain rattle problems but the motor has to be pulled to get to them at the back Those motors are great until you get to that problem... Of course if you were swapping you could deal with it then and maybe get a cheap deal on a bad one from somebody who doesnt want to dump the $5k to fix it.

The earlier 4.2s from C5 S6's and D2 S8's arent as bad and yes use the exact same ZF as the 540 except in awd form. Has a few more ponies than the M62 (340 i want to say off top of my head) but still tons of effort for small returns (and some would say BMW typically underrates the M62 so its less difference than it appears). Nice motors though.

And electronics would be completely different so huge wiring task either way. Both run flavors of motronic like every german car but youd have quite a task to sort out all the wiring still...

Yeah it fer sure wouldnt be my first call... The LS makes so much more sense - everything cheaper and way way more parts out there for them. Unless you just really want to be different....
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Last edited by geargrinder; 02-23-2013 at 08:06 AM.
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Old 02-23-2013, 07:35 AM
geargrinder geargrinder is offline
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Quote:
Originally Posted by HTK12 View Post
Well what do mean by newer? I think audi used the same 4.2 V8 until 2005. It has the chain at the back of the engine which means dropping the engine+transmission to do timing job on it. Any newer engine than that and the electronics are going to be a major PITA.
Oops simul post...
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2003 M3CicM6 TiAg
2002 540iT 6MT Sport TiAg
1995.5 Audi S6 Avant (utility/winter billetturbobattlewagen)
2008 Audi A3 2.0T DSG (hers)
1999 Cherokee Sport 4L (trailer-hitched in-law loaner bomber)



Some Stuff FS
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Old 02-23-2013, 07:41 AM
HTK12 HTK12 is offline
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Quote:
Originally Posted by geargrinder View Post
Oops simul post...
Hahaa you got the same feeling about it as I did.
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Old 02-23-2013, 09:41 AM
edjack edjack is offline
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