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brake booster

  1. Brake occasionally fail and car sometimes stall

    General E46 Forum
    Hello lads my car is a 2004 325i. Recently I have been some problem, such as, the brakes would occasionally fail. It works most of the time, but if I happens to brake really hard, it will lose brake after that, as in the pedal goes to the floor, and the brake light goes on. Then after a while...
  2. Rough/uneven idle goes steady when a/c compressor turns on.

    General E46 Forum
    I've been having an issue with my 2004 BMW 330ci. Some background; the vehicle ran perfectly fine for a long time. Regular maintenance done one day serp belt ripped. Before replaceing figure the alternator pulls was getting stuck. But when the new parts were installed everything seemed fine till...
  3. 2001 325i Vac Leak

    General E46 Forum
    So, just bought a 01 325i. I believe i have a vac leak. I hear a air/hissing sound around my DISA valve so replaced it. Still a vac leak in the same area based off the hissing sound. Also my beak booster has a vac leak so my question is, is the break booster my problem?... to go more in detail...
  4. 318 Ci e46 hard brake pedal..Please help

    Suspension & Braking
    Hi guys really need your help please read. 2003 e46 318 Ci m sport convertible I have a hard brake pedal when braking and little or no braking assist. I had my check valve changed and then my servo which fixed the problem. 3 months later I get the problem again with some uneven engine idling...
  5. Brake Booster Before CCV Before VCG?

    General E46 Forum
    -Got some things on a list of mine after I replace my front Rotors, Pads, and Bearings within a few weeks, and was wondering if there should be an order of operation. That is to say, I don't want to have any non functioning/ poorly functioning part mess up the the last job. E.G. If I replace my...
  6. Newbie with SES - Help!

    General E46 Forum
    Pulled the following codes P0300: Random/Multiple Cylinder Misfire P1349: Ignition System/or misfire P1351: Ignition System/or misfire P1352: Ignition System/or misfire P0171: System Lean (Bank 1) P0174: System Lean (Bank 2) Coils/plugs OK. Replaced exhaust camshaft sensor. Since both banks...
  7. Brake Fluid Emptying and Master Cylinder Questions

    General E46 Forum
    hey everyone so i was proceeding to remove my brake booster after what happened in my previous thread (rubber grommet from brake booster vacuum line falling into the brake booster).... so i started to empty the brake fluid with a syringe and i noticed that there is a drain cap that is blocking...
  8. Brake Power Unit Dilemma and 1.5 Years of Same Oil

    General E46 Forum
    So here it goes.... Background: The last two weeks my car has been up on stands while I replacing my CCV (and upgrading to the cold climate version; car was originally a FL car so it didnt have the cold climate version), VCG, ofh gasket, vanos oil lines and some smaller gaskets/orings etc...