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  1. #1
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    VANOS issue - Codes P0011, P0012 & P0015

    My 2003 325Ci idles a bit rough in the morning on cold start up only for about 30seconds then stabalizes. After that the car will run perfectly for the rest of the day.

    I took the car for its routine oil service and asked them to check the idling issue out, thinking it might only be a camshaft sensor needing replacement.

    The diagnostics showed codes:
    P0011 VANOS inlet camshaft, end position not reached. Adaptation value outside tolerence
    P0012 VANOS inlet camshaft, tight or jammed. VANOS blocked/stiff
    P0015 VANOS exhaust camshaft, tight or jammed. VANOS blocked/stiff

    The dealer said the double VANOS should be replaced. They also said the problem might disappear with the fresh oil, and I should see what it does the next morning. No difference at all. Im thinking it might be an exhaust or inlet VANOS solenoid. I also unplugged the exhaust camshaft sensor while the engine was hot, and the car idled normal. This is a low mileage car, 100 000km (not sure how many miles that would be)

    Any advice will be much appreciated.


  2. #2
    Rick
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    Re: VANOS issue - Codes P0011, P0012 & P0015

    I can tell you that your car has about 60,000 miles. Very low miles for an '03.

  3. #3
    c.d.iesel
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    Yes | No

    100k = 62,000 miles......

    ...and that's a ton-0-miles when you've been using the wrong weight
    oil, and add extremely long intervals between changes,
    and you now have VANOS unit(s) gummed up.

    There's a good reason that BMW specified 5w-30 synthetic
    A3/B3 oil ? V A N O S and all the micro passageways
    that the oil needs to flow through. Importantly
    during cold starts and warm-up period. That
    is why your throwing VANOS fault codes today.

    Your in for a long expensive road to recovery.

    Cheers Mate,
    happy holidays! from accross da pond

  4. #4
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    DIY

    If you are able and inclined to do the work yourself, get the Vanos seal kit ($60) and excellent instructions here:
    Beisan Systems

    4-6 hours depending on skill and experience; no special tools; very satisfying results. I am about to do it on our '02 with only 68k miles.
    '03 525i Sapphire Blu/Grey, SP, Nav
    '02 325it Orient Blu./Grey, SP, Nav
    '98 323is Arctic Sil./Blk, SP
    '95 M3 Cosmos Blk./Blk

  5. #5
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    What exactly are the symptoms you have on your

    '02?
    I'm wondering if I have this on my car.

  6. #6
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    Re: What exactly are the symptoms you have on your


  7. #7
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    Dr. Vanos is another option.

    It is more expensive but you get a rebuilt VANOS unit with the upgraded Beisan seals and internal components machined to tighter tolerances.

    "Fully cleaned and rebuilt vanos unit with new seals and O-rings installed. In addition, we rebuild the internal bearings and reduce the tolerances to eliminate the 'marbles in a tin can' noises commonly found on the 'ZHP' package E46 models. The kit also includes a new vanos gasket and crush washers. Don't settle for half a rebuild, get the complete package with our dual vanos kit.
    Price: $400.00 (includes fully refundable $150 core charge)"


    Dr. Vanos Link

  8. #8
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    Symptoms

    Weak torque off the line, making clutch engagement point challenging to manage. Occasionally unsteady idle speed.

    Actually, both our E39 and the E46 have similar symptoms, and I will probably do the E39 first because it has more miles (83k) and the idle problem is more pronounced in that car.

    I did the Beisan seals on our previous '01 325it (manual), and the change was dramatic. Smooth torque off the line, so less clutch slipping to avoid stalling. Lots more power at higher RPM too. You should see those dead, crunchy o-rings that come out of the vanos.
    '03 525i Sapphire Blu/Grey, SP, Nav
    '02 325it Orient Blu./Grey, SP, Nav
    '98 323is Arctic Sil./Blk, SP
    '95 M3 Cosmos Blk./Blk

  9. #9
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    Yes | No

    Ironically I was just teaching a new 16 year old

    driver to drive a manual on my car last week, and she was doing fine. Evidence that my low end torque is fine at 77K on an '04 330Ci.
    I do kind of have a skipping in power up higher in the rpm range when I'm not trying for full power. And I do have a loud idle with skips in the rpm's there that are visible on my tach. And the engine rattles like it never did when new. I had to think for a moment that I recall my idle used to be silky smooth and quiet when I first heard the noisy rattling.
    I wonder if my rings could possibly be OK after the Beisan site says all rings are shot after only 30K miles?

    Are you going to do the 'rattle' repair in addition to the sealing rings?

  10. #10
    merckx
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    Re: What exactly are the symptoms you have on your

    I have a loud rattly engine....I am not throwing vanos codes but was told it is my idle adjuster unit...Intake Manifold Runner Valve Adjuster Unit #11617544805. ...and my noise does not appear to be coming from the front of engine but rather the side where the intake manifold is....but I think Dr. Vanos is in my future. Side note ...any of you have a clutch price...cut flywheel and replace clutch/etc. ? This is coming my way...110k, maybe in spring. Thanks ! -merckx

  11. #11
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    Rattle repair

    That kit from Beisan is new since I last bought a vanos kit. No explanation on the site? Our cars don't have much rattle, just the drivability symptoms. So, I'll probably pass on the rattle kit.
    '03 525i Sapphire Blu/Grey, SP, Nav
    '02 325it Orient Blu./Grey, SP, Nav
    '98 323is Arctic Sil./Blk, SP
    '95 M3 Cosmos Blk./Blk

  12. #12
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    Re: 100k = 62,000 miles...(true even in U.S.)

    I thought that 0-40 oil is much better than 5-30. Is't BMW oil 0-40?

  13. #13
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    The recomendation for our cars is:

    BMW High Performance Synthetic 5W-30
    or
    Mobil 1 0W-40.

    Both of those meet BMW's spec.

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