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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E46 (1999 - 2006)

E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

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  #1  
Old 12-28-2012, 04:25 PM
Tin Alley Tin Alley is offline
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2001 325i bad motor....updated 1-26-13

The BMW addiction has hit me. I currently own 3 and bought my daughter a 2001 325i that had ran hot. When I pulled the head off found the #4 piston is burnt and cylinder wall is scored. I am looking at pulling this motor and replacing it. I have been told that a 01 or 02 2.5 motor is plug and play assembly and that a 03-06 I would have to change some items. I could not find an interchange list online and was wondering what year besides the 01 would be an option. Thanks in advance and look forward to learning a lot from this site.

Last edited by Tin Alley; 01-26-2013 at 08:57 PM.
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  #2  
Old 12-28-2012, 04:44 PM
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You can start by reading this thread (below on this page):

325i engine with 330i engine?
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  #3  
Old 12-28-2012, 05:13 PM
Tin Alley Tin Alley is offline
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I have read that thread and from what I understand the 2.5 for 2001 and up is pretty much plug and play and the 3.0 will need re-flashing.

2001+ 325/330 M54 line of engines (some M56)

I have been doing some searching on the forum now and hope I don't have to many "newbie" questions. So please don't flame me too bad!
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  #4  
Old 12-28-2012, 05:18 PM
Tin Alley Tin Alley is offline
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My plan right now is buying a wrecked 2001+ 325/330 and just trying to have a good plan in place.
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  #5  
Old 12-28-2012, 06:47 PM
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SJBimmer SJBimmer is offline
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Quote:
Originally Posted by Tin Alley View Post
I have read that thread and from what I understand the 2.5 for 2001 and up is pretty much plug and play and the 3.0 will need re-flashing.

2001+ 325/330 M54 line of engines (some M56)

I have been doing some searching on the forum now and hope I don't have to many "newbie" questions. So please don't flame me too bad!
Nobody here flames guys with legitimate questions that need help. I honestly suggest sticking with the 325 motor if it's for your daughter, and it's an easier and less expensive install to boot. BTW, welcome to the fest! and let us know how the swap goes. Also, stay away from the M56 engine!!
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  #6  
Old 12-28-2012, 07:31 PM
Tin Alley Tin Alley is offline
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Quote:
Originally Posted by SJBimmer View Post
Nobody here flames guys with legitimate questions that need help. I honestly suggest sticking with the 325 motor if it's for your daughter, and it's an easier and less expensive install to boot. BTW, welcome to the fest! and let us know how the swap goes. Also, stay away from the M56 engine!!
Thanks for the reply. Just wanting to make sure that any 01-06 325i 2.5 motor will work. Planning on buying a wrecked one next week to use for the swap.
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  #7  
Old 12-28-2012, 09:17 PM
alpinweiss alpinweiss is offline
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Quote:
Originally Posted by Tin Alley View Post
Thanks for the reply. Just wanting to make sure that any 01-06 325i 2.5 motor will work. Planning on buying a wrecked one next week to use for the swap.
Ummm no. The 2006 325i sedans (E90) used the N52 engine, which is completely different from your M54 engine.

Get a 2.5 liter engine (M54 B25) from one of the following:
2001 to 2005 325i sedan (E46)
2001 to 2006 325i coupé (E46)
2001 to 2003 525i sedan (E39)

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  #8  
Old 12-29-2012, 08:24 AM
Tin Alley Tin Alley is offline
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That is what I needed to know. Thanks for the reply and I will be posting photos later.
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  #9  
Old 12-30-2012, 10:53 AM
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Brobby87 Brobby87 is offline
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Quote:
Originally Posted by Tin Alley View Post
That is what I needed to know. Thanks for the reply and I will be posting photos later.
Awesome. I will be looking forward to your swap photos.
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  #10  
Old 01-03-2013, 06:12 PM
Tin Alley Tin Alley is offline
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Ok here is pictures of the 01 that I am replacing the motor in.
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  #11  
Old 01-03-2013, 06:17 PM
Tin Alley Tin Alley is offline
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And here are some pictures of the parts car I bought. It's an 02 325i with a little over 120,000 miles. I picked it up today and started it up and ran it through the gears. Everything works on the parts car so I'll have several things I can use. I will be using the parts car interior. Let the fun begin! Also I had already pulled the headlights out of the 01 and polished them out.
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Last edited by Tin Alley; 01-03-2013 at 06:19 PM.
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  #12  
Old 01-03-2013, 06:34 PM
Jimmys 530i Jimmys 530i is offline
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Did you buy that car on Copart? I think I may have been bidding against you.
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  #13  
Old 01-03-2013, 06:38 PM
Tin Alley Tin Alley is offline
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Quote:
Originally Posted by Jimmys 530i View Post
Did you buy that car on Copart? I think I may have been bidding against you.
That would be it. I hate bidding against a fellow member. I did pay a lil more then I wanted because I needed the interior too. I have less then 1/2 in the 01 of what your bid was last week. I drove up there and picked it up today.
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  #14  
Old 01-03-2013, 08:07 PM
vandyboy vandyboy is offline
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Hey Tin...if your '02 325i parts car had a working CD stereo with the AUX mode, would you consider selliing it?

Nice find on the donor car, by the way. Looks like a lot of good interior items on that car.
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  #15  
Old 01-03-2013, 08:12 PM
Tin Alley Tin Alley is offline
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Quote:
Originally Posted by vandyboy View Post
Hey Tin...if your '02 325i parts car had a working CD stereo with the AUX mode, would you consider selliing it?
I will check on that tomorrow and let you know.
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  #16  
Old 01-03-2013, 08:16 PM
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3seriesbmw 3seriesbmw is offline
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From what I see the parts car has heated seats! If the 01 doesn't have those then that's a definite swap if easy enough! Very nice parts car! Out of curiosity how much should you expect to pay for a similar parts car? If you aren't going to use the plastic shields along the bottom front end of the parts car I'd be interested!
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Vehicle lineup:
2003 325i-Premium pkg, heated seats, leather (sold)

2005 Chevrolet Tahoe-Navigation, Sunroof, DVD, 4X4, autoride, etc. (sold)

2007 Audi A6-everything except navigation (sold)

2007 z-71 Avalanche-heated seats, sunroof, 4X4

2007 BMW X5 3.0si- heated seats, technology pkg, premium pkg
(current)

Also in the garage-
2007 Cadillac Escalade
2010 GMC Sierra SLT
2012 Ford F-250 Lariat
2004 GMC 2500HD

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  #17  
Old 01-03-2013, 10:59 PM
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iskoos iskoos is online now
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May I ask why that Black bimmer became a parts car? It has a good interior, working engine(since you will be using it), I don't see any body damage other than missing bumper, fender etc. So what was wrong with it? I am confused.
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  #18  
Old 01-04-2013, 05:13 AM
Jimmys 530i Jimmys 530i is offline
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The black car has a salvage title.
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  #19  
Old 01-04-2013, 07:37 AM
Tin Alley Tin Alley is offline
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Quote:
Originally Posted by vandyboy View Post
Hey Tin...if your '02 325i parts car had a working CD stereo with the AUX mode, would you consider selliing it?
It does not have the AUX mode.
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  #20  
Old 01-04-2013, 07:39 AM
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iskoos iskoos is online now
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Yeah but "why" is what I am asking...
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  #21  
Old 01-04-2013, 07:51 AM
Tin Alley Tin Alley is offline
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Quote:
Originally Posted by iskoos View Post
May I ask why that Black bimmer became a parts car? It has a good interior, working engine(since you will be using it), I don't see any body damage other than missing bumper, fender etc. So what was wrong with it? I am confused.
The insurance estimate on that car was $5,787. You start adding up body parts, a/c condenser, radiator, tires etc. the insurance company will total the car depending on the year and mileage. The passenger door needed replacing and it had damage on the rear door and quarter panel. I'll agree with it being an easy fix but if you ever start looking at salvage auctions you'll be surprised at how little damage some salvage title cars have. Also you will be amazed how little damage a Florida car will have and be a certificate of destruction only instead of a salvage car.
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  #22  
Old 01-04-2013, 08:02 AM
Tin Alley Tin Alley is offline
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Quote:
Originally Posted by 3seriesbmw View Post
From what I see the parts car has heated seats! If the 01 doesn't have those then that's a definite swap if easy enough! Very nice parts car! Out of curiosity how much should you expect to pay for a similar parts car? If you aren't going to use the plastic shields along the bottom front end of the parts car I'd be interested!

Yeah the 01 does not have heated seats and I plan on using the heated ones from the 02. I have tried a search on the install and can't find one. I will see how in-depth it will be first.


You can expect a parts car like that between the $1,000 to $2,000 range usually.


Let me make sure I won't need the shields and I'll let you know on them.
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  #23  
Old 01-04-2013, 08:59 AM
vandyboy vandyboy is offline
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Originally Posted by Tin Alley View Post
It does not have the AUX mode.
Thanks for checking. Good luck with the project.
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  #24  
Old 01-04-2013, 03:49 PM
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3seriesbmw 3seriesbmw is offline
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Quote:
Originally Posted by Tin Alley View Post
Yeah the 01 does not have heated seats and I plan on using the heated ones from the 02. I have tried a search on the install and can't find one. I will see how in-depth it will be first.


You can expect a parts car like that between the $1,000 to $2,000 range usually.


Let me make sure I won't need the shields and I'll let you know on them.
It might just be plug and play! The black bar that the heated seat switches sit in should transfer over and I would think the connectors would be there if the 01 has electric seats! I would think all you would have to do is run the wires and swap the seats and probably a fuse!
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Thanks,
3series

Vehicle lineup:
2003 325i-Premium pkg, heated seats, leather (sold)

2005 Chevrolet Tahoe-Navigation, Sunroof, DVD, 4X4, autoride, etc. (sold)

2007 Audi A6-everything except navigation (sold)

2007 z-71 Avalanche-heated seats, sunroof, 4X4

2007 BMW X5 3.0si- heated seats, technology pkg, premium pkg
(current)

Also in the garage-
2007 Cadillac Escalade
2010 GMC Sierra SLT
2012 Ford F-250 Lariat
2004 GMC 2500HD


Last edited by 3seriesbmw; 01-04-2013 at 03:52 PM.
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  #25  
Old 01-04-2013, 03:57 PM
Tin Alley Tin Alley is offline
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Yeah I found a link on another site and also found a diagram for the heated seats.

http://www.angelfire.com/myband2/ds/...ts-English.pdf

Doesn't look to be too bad.
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