2002 E46 318 N42 - Oil leak / Vacuum pump

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  1. 2002 E46 318 N42 - Oil leak / Vacuum pump 
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    Afternoon all.

    My n42 gets through a fair amount of oil and have been trying to pin-point the problem for a while.

    The cam cover gasket has been done, which doesn't seem to have stopped oil loss but MPG has increased around 5!

    I took the pollen filter etc off today to take a look at the vacuum pump as I get puffs of White smoke from the engine side of the bay. I also get the burning smell shortly after starting from cold.

    The pump looked ok but think I will take it off next weekend for a clean up.

    I cleaned oil residue off the engine also and went for a run and noticed fresh oil here:



    Any thoughts/suggestions much appreciated!

    Thanks in advance!

    Brad
     
     

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    Check out this thread for vac pump repair
    http://www.bimmerforums.co.uk/forum/...03/#post777905
    Are the puffs of smoke there constantly?
     
     

  4. 2002 E46 318 N42 - Oil leak / Vacuum pump 
    #3
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    Cheers! Have bookmarked that one already for next weekend!

    Not constant, only seems to be when under load or on startup!

    Just thinking if there is fresh oil there and also down the front of the engine, is not just the pump. Possibly filler cap?! Although appears fine visually!
     
     

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    Quote Originally Posted by bradjsmith88 View Post
    Cheers! Have bookmarked that one already for next weekend!

    Not constant, only seems to be when under load or on startup!

    Just thinking if there is fresh oil there and also down the front of the engine, is not just the pump. Possibly filler cap?! Although appears fine visually!
    Most probably fresh oil burning off that has dripped on the exhaust manifold when the cars been left for a while and forcing more out when under pressure.
    check this thread about oil leaks2002 E46 316ti - Oil leak pics
    And yeah by the picture I'd say oil cap if the rocker gaskets ok.
     
     

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    bradjsmith88 (08-08-2011)

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    Cheers Mojojojo.

    Looks like you've been there and done that with this engine.

    The oil is sitting on the 'heat resistant plate' by the manifold. (Real OEM name)

    Am going to order up a new o-ring for the vacuum pump, and o-rings for the solenoid valves and try and get them all changed this weekend.

    Will report back on how it goes.
     
     

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    mojojojo (08-08-2011)

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    Oh yeah been there,
    if you can try and have a look under the intake manifold and in it for signs of oil, it'll let you know what condition the ccv system is in.
     
     

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