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  1. sensor failure/something wrong - help

    General BMW Model Discussion
    So recently my z3 2.8, with the m52tu engine found in the e46, has started to do something weird. As I drive the car, it never seems to fully reach operating temperature, and the temperature swings between all the way cold and almost fully warmed. And so to the weird thing, when I plugged the...
  2. M54b30 Intake Cam in M52B28TU

    General E46 Forum
    Hello, Will the M54B30 intake camshaft fit on the M52B28TU intake side with the standard timing procedure? Do I have to turn the cam a little different than I would have to do with a standard cam? I know that this swap has been done but I couldn't find answers to my questions Thanks in Advance
  3. E46 328 M52TU Valve Cover, $80

    Engine & Performance
    Selling a valve cover from an M52tub28, bit dirty but in decent shape. No visible cracks. Believe it was off an e39 but should fit an e46 afaik. Pics of part number to be sure. Was keeping as a spare, liquidating to finish a swap :) Asking $80, will ship at buyer's expense or pickup near...
  4. Misfiring after engine is warm

    General E46 Forum
    My E46 328Ci with the M52TU engine starts to misfire after running for sometime. Changed the coil packs, spark plugs, fuel filter, pump and injectors recently. Scan gives an error code for an oxygen sensor, could this be the issue or does anyone have any idea what it could be? Thanks :bow:
  5. MS42 pop mod

    Driveline, Engine & DME Tuning
    Hey guys I edited my .bin exactly as it was depicted at the MS42 Wiki. The problem is, that there is no "bang" and the revs fall down very slowly. I tried de AD and C6 version. Has anyone had the same issue? What can I possibly do to get the pops and bangs? Cheers.
  6. Mixed up vanos pistons - Help

    General E46 Forum
    2000 328i m52tu engine In process of replacing dual vanos pistons seals. Have forgotten which piston went where, exhaust or intake cam side. They are labeled t-15 & t-16. Any ideas? Does it matter ? I've got a 50/50 shot :)
  7. intermittent m52tu misfire

    Driveline, Engine & DME Tuning
    Had to take the car out tonight and it was very obviously misfiring from the get go. this has happened sometimes on cold starts before and has gone away shortly thereafter (think 5-10 seconds) so I started driving. The misfire continued for the whole 5 minute drive. When I dropped off what I...
  8. M52tu throwing codes after vanos seal replacement! HELP!

    General E46 Forum
    Alright guys i'm as a loss. last weekend i did a valve cover and vanos seal replacement. After i got it all put back together it immidialaty stated throwing codes. I DID however forget to plug in the intake solenoid electrical connector. i took the car on a quick spin and quickly realized...
  9. Theoretical turbo e46

    General E46 Forum
    Hey all. I have a dd 330i that I'm very pleased with and I'd like to look at getting a second e46 as a project. Here's my idea. I want to turbo a bmw very badly. Maybe an e30. Maybe an e46. I've researched to death about boosting the m20, lots of people do that. Lots of people also...
  10. M54b30 manifold swap EML codes

    DIY: Do It Yourself
    Hello Guys I've been using this site for years for all my problem solving etc. Its finally come to the point were I'm facing a new problem. I've just done the m54b30 manifold swap into my m52tu, all went well pretty straight forward. On start up for the first time I had a rough idle and vacuum...
  11. 323CI EML Light HELP!!

    General E46 Forum
    So I recently just bought this car from probably the biggest D bag on the planet because he fixed everything with superglue, zip ties, and electrical tape. I've been going through the car and fixing things that go wrong with it. I have run into an issue though. Every morning, like clockwork...
  12. Engine Intake and cam In colorado

    Engine & Performance
    How is everyone. I have the following for sale, and I'm willing to ship, that is if you pay for shipping, i.e. freight. What I have for sale is as follows a complete M52TUB28 with 90k miles and an engine stand, I'm looking for 700 and you can pick it up, if you're in colorado springs, I can...
  13. FS or FT

    Engine & Performance
    I have some parts left over from a previous car and I'm tired of moving them out of the way. All prices are OBO and very negotiable. I will ship at buyers expense for exactly what it costs to ship. I really don't have a feel for how much they are worth so please don't flame just make me an...
  14. Timing issues

    General E46 Forum
    Here's the gist: I was driving down the road with cruise control on and all of a sudden when I went to accelerate past a couple cars, I felt a rough rumble that shook the car and diminished acceleration/horsepower. Since then, It happens every once in a while and I haven't been able to pinpoint...
  15. 2000 323i sedan black on black part out

    Parting Out
    Car is being parted out now! If you want something and i tell you a total price, pay me within 24 hours or i may sell it to someone else. The receipt for the trans is attached. I have a nice set of LED taillights, pm me an offer No speakers, radio or factory intake. Radiator Support: SOLD...
  16. Engine Noise with movies

    General E46 Forum
    Hello, my name is Len Ruygrok, i drive a 1998 M52tub25 motor driven bmw 323i. I have some problems with the engine wich i try to figure out ... I have uploaded 2 movies with the noise my engine makes. Please I hope somebody can help me !!! finding the problem .. Car drives great except for a...
  17. FS: Parting out M52TU / M54, Complete Motor

    Engine & Performance
    I'm in the process of parting out a complete M52TU 2.8L / M54 Motor, will ship all parts but pick up is also available here in Chicago. Following parts are available, most are interchangeable with M54 motors, I believe the manifold is M52TU only and perhaps the wiring harness (Please correct me...
  18. Let's talk M52TU upgrades

    Driveline, Engine & DME Tuning
    Yep, you read right. 1st off, supercharging - yeah, I know, but that's not what I'm here to talk about. 2nd turbocharging - yeah, even if someone makes a kit I can't afford that either. NOS - no, way, I don't do drugs. So now that that's out of the way, let's talk about bolt on mods. I have the...