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M52/S52 vs. S50 Euro Hydraulic Chain Tensioner

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    M52/S52 vs. S50 Euro Hydraulic Chain Tensioner

    I have a bit of a rattle in my Alpina 3.3 M52 (basically a 3.3 S52 engine) and I wanted to replace the chain tensioner before I do the vanos. I ordered an S50 one (left hand side in the pic) - am I correct in assuming it will not fit?

    I think I already have a hydraulic tensioner, but the movement feels "crunchy" and doesn't move smoothly. Am guessing it's likely that it's the original item on around 110K miles, so this being a wear item at this stage sounds about right?

    So - what is the right part number for the M52/S52 hydraulic tensioner? Have been battling to find one that is confirmed to be hydraulic vs the spring.

    Cheers,
    Gus

    JUNGL3



    1990 "333i" Sport

    #2
    WWW.bmwfans.info E36 3.2 us car

    Timing chain guides are different in OBDI vs OBDII cars and must use matching tensioner.

    I was up above it, Now I'm down in it ~ Entropy - A Build thread.
    @Zakspeed_US

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      #3
      S52 are hydraulic as far as I know, M52 are not.
      Originally posted by priapism
      My girl don't know shit, but she bakes a mean cupcake.
      Originally posted by shameson
      Usually it's best not to know how much money you have into your e30

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        #4
        Ended up getting one from BMW - looks like the M52 one is a spring and some sort of hydraulic action...anyway, the rattle has gone! Very good news.

        JUNGL3



        1990 "333i" Sport

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