2002 E46 316ti - n42engine oil leak

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  1. 2002 E46 316ti - n42engine oil leak 
    #1
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    Hi All
    Any help appreciated with my prob.

    The car is a 316ti, 2002. manual.

    I only recently bought it and noticed a small (ten p piece size) oil drip when

    left over night.

    Had oiled and filter changed in the hope that maybe that would shed some
    light on it,,,,,,but no it didnt.

    So yesterday I took the car in for initial investigation to find the source of the
    leak.........i stayed with the car, and the only oil that was evident was coming
    from high up, at the rear of the engine, on the offside. There you could see a drip forming hanging from what looked like some flange.

    The garage is not BMW trained and they said all they can do is to strip down the air intake bulk head area to get to the rear of the engine.

    I am a bit dubious about this as I can see they could rack up a sizeable bill
    just looking and still i would not know the poss cost of repair.

    Is there any common area this engine might spring a leak in the vicinity I have mentioned??
    Do you think the BMW garage would poss be cheaper?
    Or would you , as my brother said, just leave it, its only a small leak and will do no harm, save the odd topping up??
     
     

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    I have just been able to solve an oil leak, fingers crossed, no dripping oil since fixing it. You could leave it but it could get worse and oil engine light may come on when driving. This happened to me and I decided enough was enough had to find the leak. Is it definitely dripping from the back of the engine or is it dripping at the back of the tray ? What I am trying to say is that did you check this with the bottom engine cover off ?

    I didnt have much luck with mechanics, some telling me to engine clean and then bring it, etc etc. In the end I found the oil leak to be coming from the front of the engine where the solenoid valves were. 3.60 in Parts.

    I was getting desperate and rang BMW up. They said that they wuld charge me 49 for half an hour diagnosis and then would call me back if more time would be required.

    This is a tough one, if you are sure its from the back of the engine this is going to be hard to dignose. And yes, from my experience oil leaks are notorious on these cars, dont know what BMW are playing at??? Have u checked head gasket seal ? this is a common place and could expalin dripping at the back of the engine.

    Stick with it for a bit and see how you get one.
     
     

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    Hi mate
    Yes I made sure the drip tray had been removed, and I personally saw
    a drop of oil just hanging ready to fall.

    It was hanging as i said off a small protrusion on the engine, where there is obv something attached as there was gasket there.
    But of course it may be coming originally from higher on the engine and the place i saw was just where there was nowhere else to drip to than on the floor. But clearly when put back together it would fall onto the drip tray.
    But i think this oil has also been dripping around where the exhaust comes down as the area around that on the body was oil damp.
    But it defo at the rear of the engine, it could not have travelled from the front as in your case
     
     

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    Not head gasket seal but rocker cover profile gasket
     
     

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    I could buy a lot of oil for 49 !! and of course there coiuld be another one in a weeks time,
    I may well just leave it alone, it is only a drip each night, so will be a while before any light comes on I would imagine.



    Quote Originally Posted by moghm View Post
    I have just been able to solve an oil leak, fingers crossed, no dripping oil since fixing it. You could leave it but it could get worse and oil engine light may come on when driving. This happened to me and I decided enough was enough had to find the leak. Is it definitely dripping from the back of the engine or is it dripping at the back of the tray ? What I am trying to say is that did you check this with the bottom engine cover off ?

    I didnt have much luck with mechanics, some telling me to engine clean and then bring it, etc etc. In the end I found the oil leak to be coming from the front of the engine where the solenoid valves were. 3.60 in Parts.

    I was getting desperate and rang BMW up. They said that they wuld charge me 49 for half an hour diagnosis and then would call me back if more time would be required.

    This is a tough one, if you are sure its from the back of the engine this is going to be hard to dignose. And yes, from my experience oil leaks are notorious on these cars, dont know what BMW are playing at??? Have u checked head gasket seal ? this is a common place and could expalin dripping at the back of the engine.

    Stick with it for a bit and see how you get one.
     
     

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    Quote Originally Posted by NealP View Post
    Not head gasket seal but rocker cover profile gasket

    thanks for calrifying that. Is valve cover gasket and rocker cover profile gasket the same thing ? U know when i said my oil issue was solved, haha, I have seen a little bit of oil this lunch time. If you are stnding infront of the engine, it is on the left hand side on the engine block, just below the black engine cover. So looks like another job. Got a part number and an approx price please?

    thanks
     
     

  8. The Following User Says Thank You to moghm For This Useful Post:

    Rogerpears (30-12-2010)

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    You want no. 2 in the diagram.



    BMW Part#: 11120032224
    Price 66 inc.

    65.62+VAT from ECP
     
     

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    hi
    Took car into Indy BMW yesterday.

    They looked for oil leak and came up with the following conclusion.

    1) Oil leak evident from Vacuum Pump and Cam cover gasket.

    I asked what this would cost and they have still to get back to me.

    But a question I have is Is this more likely to be a gasket rather than the vacuum pump itself?

    As far as I know there are no issues with anything requiring a vacuum
    Is there a difference I would notice in the oil that is dripping on to the floor

    I guess i had assumed it was engine oil !!

    Is a cam cover gasket a common problem on n42 ??
     
     

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    Easier one to do is the profile gasket. I would change that first and see what happens.
     
     

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    Hi
    Just received the quote for this oil leak !!!!!!!!!!!!!!!

    From the Indy 440.00
    From a BMW dealer 575.00

    Breakdown

    Dealer
    Cam Cover Gasket kit 67.00 + labour = 235.00
    Supply and fit vacuum pump = 340.00

    Indy just one price quoted

    Not bad for an oil leak !!!!!!!!!!!!!! Blimey
     
     

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