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Thread: Primary pump in the transmission

  1. #1
    Senior Member
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    Primary pump in the transmission

    Hi,
    Apparently, I have just broken the primary pump in the transmission of my E 500...
    It happened as I was driving at about 50 mph without pushing the car. The transmission suddenly started doing a whining noise when accelerating but only until something like 2500 rpm ; it has lost some oil but the oil left is of the right color.
    Trans is only 12000 miles old, OEM and fitted by MB. The car is at the MB dealer shop.
    Any idea, suggestion, bad news ?

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    TerryA (1 Week Ago)

  3. #2
    .036 Hoonigan™
    E500E Boffin
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    Re: Primary pump in the transmission

    That doesn't sound good.

    How long ago was the transmission installed at the MB dealer? I believe they have a 2-year, unlimited-mileage warranty now.

    Dave M.
    1997 E420 (Bugeyes)
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    TerryA (1 Week Ago)

  5. #3
    postwhore posterchild Klink's Avatar
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    Re: Primary pump in the transmission

    Quote Originally Posted by gsxr View Post
    That doesn't sound good.

    How long ago was the transmission installed at the MB dealer? I believe they have a 2-year, unlimited-mileage warranty now.
    Well, that's the MBUSA parts warranty. Unless Alexis is in Paris, Texas, it may be different in his Paris...

    That being said, the most common cause of premature primary pump failure post replacement or repair is failure to transfer the locating dowels to the new transmission housing if required...
    Putting the fun in dysfunction...

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    gsxr (1 Week Ago), JC220 (1 Week Ago), TerryA (1 Week Ago)

  7. #4
    Senior Member
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    Re: Primary pump in the transmission

    Hi,
    Unfortunately, more than two years...
    The transmission is going to be opened ; I'll update.

  8. The Following 2 Users Say Thank You to alexis For This Useful Post:

    gsxr (1 Week Ago), TerryA (1 Week Ago)

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