I've fucking had it with this car.

I've fricking had it with this car. 2002 MB e320 trans was hiccuping a few months back, turns out it's an easy fix. drop the trans pan, replace 20 year old plastic and electric bits, replace filter, etc. totally fixed the shifting and runs good for 6 months. few weeks back the radiator leaks coolant into the troony and after replacing the radiator and flushing the trans with $300 worth of ATF, it still slips after 15 minutes of perfect driving. I assume the clutch plates are still good because it does drive but there's still coolant trapped in the torque converter because there's no real flow out of there, and it foams/boils after 15 min. some models have torque converter drain plugs, some don't. mine doesn't. what's the best way to drill and tap a drain plug into the TC, tools needed, etc? never tapped anything before but I'm not moronic, just too lazy and poor to drop/replace the whole trans.

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  1. 1 month ago
    Anonymous

    Only way coolant gets into troony is modulation valve bad.
    Never change troony fluid in an older car unless it was changed regularly.
    Once you changed the fluid that contained very fine particulates the tolerances on the clutch plates are gone…no grab. Plan on a new transmission fren.

    • 1 month ago
      Anonymous

      >Only way coolant gets into troony is modulation valve bad.

      Couldn't a cracked radiator/troony cooler cause it? I know a lot of stuff has a transmission cooler built into the same radiator as engine coolant. A crack there could allow for cross contamination.

      I have drilled and tapped torque converters in the past with a 1/8" pipe plug so they could be drained of all fluid during a re-build of the transmission.

      Pic rel is a transmission out of a 1996 Mercedes that I rebuilt... Thing had an extra ridiculous/annoying amount of check balls...

      • 1 month ago
        Anonymous

        Yes, you are right. A busted radiator will absolutely send coolant into your trans. I hate to be negative, but unless you caught it immediately and barely drove it, you're likely screwed. Hot antifreeze will eat the shit out of the trans components, fast. As for the torque converter - Yeah, the better performance replacements used to have pipe-plugs, but the trans shops, doing a full flush, would just drill a hole, drain it and use a special sealed rivet to close off the hole. I believe most shops just use power-flush equipment now, but I'm not sure.

        • 1 month ago
          Anonymous

          don't neglect to replace the radiator or hang an aftermarket cooler after the rebuild, or you'll shithouse your fresh troony first heat cycle

          • 1 month ago
            Anonymous

            >replaces transmission
            >hooks it up to the same radiator
            Man, that would fricking suck:)

            • 1 month ago
              Anonymous

              i watched a guy do it on a $18k cat skidder transmission last year. he claimed it got water in getting pressure washed. didn't pressure check the cooler lines or pull a oil sample prior to rebuild. less than 100 hrs on the new trans and all the frictions sluffed off
              >surprise pikachu face
              >no refunds
              you can't fix stupid, you just bill accordingly

  2. 1 month ago
    Anonymous

    Holy cheap chrysler benz is there really no drain bolt on the TC on these? How the mighty had fallen.

    • 1 month ago
      Anonymous

      >Holy cheap chrysler benz is there really no drain bolt on the TC on these?
      Not after 2000 or 2001 on those 5G-TRONICS.
      > few weeks back the radiator leaks coolant into the troony and after replacing the radiator
      That's a W203, W209, and W211 issue, not a W210 issue.
      >and flushing the trans with $300 worth of ATF, it still slips after 15 minutes of perfect driving.
      The transmission is trash.
      >what's the best way to drill and tap a drain plug into the TC, tools needed, etc? never tapped anything before but I'm not moronic, just too lazy and poor to drop/replace the whole trans.
      You can use the transmission cooler lines to pump new fluid through the transmission and empty the torque converter, but it's a complete waste of time for you. That transmission is done.

    • 1 month ago
      Anonymous

      the trans cools through the radiator. some of them leak in older models

  3. 1 month ago
    Anonymous

    Frick draining the tc. Any water / antifreeze will boil off derpderp. Honestly there is no way engine coolant can get in a transmission

  4. 1 month ago
    Anonymous

    coolant/water breaks down the adhesive that holds the friction material on the discs. if your troony got water in it, it needs a rebuild. no amount of hope or cope will restore it

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