E46 318 Secondary air injection & Engine tap
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  1. #1
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    Secondary air injection & Engine tap

    On start up its sounding a bit ruff only for couple of minutes while the SAI is in use, Maybe a leek with this some where along the line but i wonder if the car would start okay with this disconnected? any one done away with theirs? Also i have a Tappet sound its louder when you take of oil filler cap and gets quicker with the engine, if anyone could point me in the right direction that would be great. Would be nice to know if its anything to worry about. Cheers people
    Last edited by Dcubitt; 01-08-2012 at 19:56.

  2. #2
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    The air pump could be a broken rivet issue, not uncommon to be fair, try nut and bolting the pump instead of any broken rivets.

    Tappet sound could be worn valvetronic followers at worst or a tappet issue. How many miles has the engine done? how frequently is the oil changed? what grade oil are you using? LL04 spec?
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