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  1. 02 Pilot Mod by default / preinstalled from factory? 05/2001 330xi auto

    General E46 Forum
    Hi guys, new member here! I recently bought an automatic 330xi from a friend 180k km, he changed the whole cooling system; the system was exploding because over-pressure, resulted to be a head gasket that previous owner didn't told but admitted she knew. He sold it to me for 1500€ and I...
  2. M56 Valve Cover Swap - Positive Crankcase Pressure?

    General E46 Forum
    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...
  3. Complex Problem - Engine Surge Upper Gears Only

    General E46 Forum
    Hello Everyone, I have a complex problem that I would love help narrowing down. Thank you in advance to any contributors. I don't drive my e46 often and so this problem has been dragging on for some time. I love this car and want to keep enjoying it. Last January I brought the car in to the...
  4. Any E46 ECS Tuning Oil Catch Can

    Engine & Performance
    Lightly used ECS Tuning oil catch can (8oz version). https://www.ecstuning.com/b-ecs-parts/ecs-tuning-baffled-oil-catch-can-8oz/003779ecs05-02~a/ Picture: https://imgur.com/a/XAmnSQb I ran this setup from April through November and only had to empty the catch can a couple of times during the...
  5. Excessive Vacuum Causes

    General E46 Forum
    I have a 2004 330i with 110,000 miles on it. In the year I've owned it, I've replaced nearly all gaskets, hose, seals, bolts, and nuts. All of this was to fix an oil weep at the rear main seal and hunting idle. Everything I do has no impact on the hunting idle. I start it up, it goes to 1K...
  6. WHOLY WASHOUT Batman!!

    General E46 Forum
    You MUST read below if you've just: -Removed Intake Manifold -Replaced CCV -Removed Fuel Injectors or Fuel Rail -Replaced hard coolant hoses (or heatercore hoses) or if you are experiencing a *** Crank but NO Start *** So...Long story not so short (there are some GOOD LESSONS in here!!): It...
  7. CCV hose attachment to intake manifold

    General E46 Forum
    :banghead:I've replaced the CCV on my '05 325Ci, but the connections that run from the upper end of the oil separator to the top of the intake manifold just don't want to snap on. They go in as far as the o-ring on the hose, but don't want to make the complete "click" connection. Used lots of...
  8. Cold weather oil separator question

    General E46 Forum
    I have a 2003 330XI with about 148,000 miles on it. I live in Maine. I have never had the "cold weather oil separator" upgrade done as I traditionally haven't driven the car in the winter due to the availability of a pick up truck. I recently purchased a 2015 435i and my son is taking my 2003...
  9. Hole in intake manifold, ccv replacment

    General E46 Forum
    e46 m52tub engine. The previous owner for unknown reasons decided to drill a hole in the intake manifold, stick a vaccuum hose in it, connect that hose to the fuel pressure regulator and plug the vaccuum hose that goes to the ccv with a rivet. Does anyone know why would you that? And what would...
  10. 2005 E46 330xi - replaced CCV, still have billowing smoke

    General E46 Forum
    2005 330xi w/220,000mi. Car is in perfect condition, so would like to repair if I can. Short story: drove car to airport end of December - car was fine. Went to start car on return 5 days later (single digit temperatures for days), and as soon as car was started, it was producing EXCESSIVE...
  11. CCV hose gunk/mayo buildup. What next?

    General E46 Forum
    Hi all, Some weeks ago I cleaned the VANOS solenoids on my 2001 330xi (200k+ miles), then I also took off the CCV hose (see attachments) and there was a lot of mayo/gunk in there. I cleaned it out and put it back on. I do have a rough idle with subpar rpm (650-750) that I am not sure where...
  12. My fully sick E46 is fully sick - please help!

    General E46 Forum
    Fellow E46 enthusiasts I have a 2004 320i MSport with ~138k on the dial. It was running like a dream until a few months back when one morning it began shuddering and I could smell burning plastic through the vents... Quick call to my mechanic had me soon having the ECU rebuilt (which...
  13. CCV symptoms

    General E46 Forum
    Hello e46 family! I know the ccv is a wery well known topic but i couldnt just find detailed information about how to spot a failling CCV system. In my case a have a pretty bad oil consumption in my E46 320i, M54B22. I have it for only around a month and i made around 1.6k miles with it since i...
  14. E46 Excessive crank case pressure

    Forced Induction Forum
    Welcome. Thank you for looking at this post! I will give a short topic point to help any one who may have quick and easy information, then I will proceed to post detailed information about my E46. --2001 330CI 3.0L __NEW PARTS__ -valve cover gaskets full set felt pro -rebuilt the VANOS -fuel...
  15. Help: Whistling and Light Idle Hunting

    General E46 Forum
    So, a while back I noticed that I was getting a certain whine/whistle from my m3's engine bay while driving. The whistle only appears when using light throttle at speed, maintaining speed, or when going downhill. The whistle generally starts around 2500rpm and gets drowned out by the engine...
  16. Engine Hoses (Which one is #3?)

    General E46 Forum
    What's up everyone. I'm replacing most of the engine hoses in my wife's 2001 manual 330ci coupe. #1 & #2 in the picture are plastic hoses. Do these even need to be changed? I have the intake manifold off so if I'm going to change them, then now is the time. I also can't find a part # for hose...
  17. Any E46 E46 3-series CCV valve kit for sale OEM (regular climate) This part has been SOLD!

    Engine & Performance
    This part has been SOLD. This is the regular climate CCV valve kit. Part numbers are: >11617501566 >11617504535 >11611432559 >11157532649 >11617504536 I want to install the COLD WEATHER climate version and got this regular version from a friend of mine who thought it was the cold weather...
  18. Question about oil separator

    General E46 Forum
    My car has this weird whine sound whenever I blip the throttle. I've posted a video*down below* and multiple people diagnosed this as an oil separator problem. I've looked up the symptoms of a failing oil separator and I basically have almost none? Here in the GCC it's really hot but in the...
  19. 318i Oil Consumption

    General E46 Forum
    Hi everyone, Currently having a problem with my 2003 318i, which I've only had for about 2 months. After driving about 1700kms, I generally get a yellow oil light warning and need to top it up by a litre. I am always using 5w-40 LL-01 spec oil for oil change and top ups. To try and fix this...
  20. Low oil level light came on and went off while driving

    General E46 Forum
    Hey everyone, new member here, please excuse the noobiness. I have been battling a yellow oil light issue with my E46 ever since I've owned the car for the past 6 months. My low oil light has been coming on after I shut off the engine. I figured this was caused by either an oil leak or a bad...
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