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1-19 of 19 Results
  1. E46 Introductions
    I have a 2003 325I with the M56 engine, it was basically given to me so of course I know there's some problems. It was running and driving fine when I first got it, but the radiator was cracked so I didn't get much driving in either. I just put a brand new radiator in it the other day and it's...
  2. E46 General
    Hey guys! So I swapped my valve cover went from m52tu to m56 now I did my research and got all new style coils plus repined harness and m56 oil dip stick. My problem now it I got codes for all cylinders misfiring and lean codes p1188,p1189,p0170,p0173 all plugs are new as well as coils and also...
  3. E46 General
    Over the past six months I have been going through the process of building a 2004 330ci to OEM+ specs. I started with a dirt cheap M56 325ci with a bad motor, and went from there. A lot the the information I had to figure out or find for myself, and thought that I would share what I've learned...
  4. ClutchAndM56Upgrade01.jpg

    M56 Valve cover Installed
  5. Driveline
    Available now is a cleaned M56 valve cover package to do the swap with almost all parts included to do the swap. No repinning of the coil harness is required if connecting to an MS43 DME. Only selling as a complete package. No warranty or returns on any item. Neither interior elongated...
  6. E46 General
    I've searched and read many posts and have gotten a ton of information but I'm still lost on certain specifics. For starters, I have a clean title 03 325i sulev with 216k miles. Reverse is out with a ZF tranny and motor is garbage. Interior and body are perfect. The other car is a 325i 03 m54...
  7. E46 General
    I'm just finishing up my 04 coupe project and I'm having a transmission/TCM issue hopefully someone can help me out with. The car is an 04 sulev M56 car. I bought it with a bad engine (no compression on #5). It ran rough but was able to drive on the trailer and around the driveway. No...
  8. Driveline
    M56 valve cover Aluminum Valve cover Plastic M56 engine cover Plastic tube from valve cover to intake manifold M56 harness Shipped $250 within 48 States
  9. E46 General
    Hi Guys! Long time member here. Recently completed a full m56 Valve cover swap - including PCV delete. I'm now getting a large amount of positive pressure through the crankcase which is leading to oil leaks around the engine. When removing the Oil fill cap I get the sound of air pushing out...
  10. Driveline
    SOLD I have a used M56 aluminum valve cover, beauty cover, breather hose and dipstick tube. If you have a post- 9/02 M54, this is what you need to swap your M54 engine to the M56 valve cover, deleting the annoying external CCV. If you have a pre- 9/02 car, you'll need a later-model coil harness...
  11. DIY: Do It Yourself
    Ok so I'm looking to hear if anyone has any info. The M56 SULEV engine has a hydrocarbon filter built into the air box as a part of the emissions system. This to me says "restriction" removing it would be simple enough however would mean you can not replace it in the future if needed. The one in...
  12. E46 General
    Hey there guys I'm pretty new to forums but i haven't seen a thread that speaks on risks for installing an e46 330 intake to a e46 325 m56 engine. Is that okay or am I hopeless having a m56..? If there are no risks Im considering installing the AFE .. or K&N..with a dry filter
  13. E46 General
    How do I test fuel pressure to injectors in 2003 325i with m56 engine? Thanks
  14. E46 General
    Humming noise. Hear it from the back driver side wheel. Thinking fuel pump. Normal?? Car runs fine. http://www.youtube.com/watch?v=vAUaX1_YXSg
  15. Engine, Driveline, Tuning
    In this first post, I am including any important information I find for SULEV owners, regarding warranty, part compatibility, etc. The Air Resource Board approvals indicate a service life of exhaust and evaporative emissions components as being 150,000 miles. I'm just curious how many M56B25...
  16. Engine, Driveline, Tuning
    Hi everyone, A few weeks ago I had my 2004 325i premium sport tuned by JLeviSW with an Active Autowerke Tune. As the title states, I've got a M56 SULEV engine (fully known as M56B25). I've put just shy of a 1000 miles on the car since the tune, so I thought I'd post up a review. The tune had...
  17. E46 General
    I am interested in getting the ebay headers everyone seems to like on this forum but I was wondering if I can get them since I have an M56 engine?....2005 325ci... Thanks for the suggestions...also, is this a DIY project for a novice?
  18. E46 General
    This weekend I decided to change my spark plugs so I looked over the DIY and found some great instructions and thank you for posting that. However, I have a M56 engine and I believe that the last (6th) spark plug if farther back in the engine bay than a M54 engine. My question is, how in the...
  19. E46 General
    I have a 2005 325ci with the M56 engine. I would like to put in an after-market Air Intake System. When I look at ebay, they range from $15 - $300. Does anyone have this engine and can you give me advise on what I should install for a M56 engine? I do not want to spend too much or too little...
1-19 of 19 Results