Quote:
Originally Posted by Graham
I had noticed a few drips of AF on garage floor. Had a look today and glad that I did!
The leak can be seen in the pic below. Presumably that is a transmission cooler line? As you can see from second picture, the nozzle nut completely split into pieces. This without touching it.
I did a search and found that someone on MBCA site had exact same problem on a 300SD some years ago. He was able to fix it (he was a guest, so no way to contact him)
Questions:
- any one here on Peachparts had this problem?
- How to disconnect transmission fluid flare nut? Seems like I would need to grip the threaded nozzle, which could damage it.
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The transmission oil heat exchanger should be all brass. The broken nut just holds and seals the heat exchanger to the radiator tank. Undo the flare nut then get another nut to replace the broken one (you may have to custom make one).
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85 300D turbo pristine w 157k when purchased 167,870 July 2025
83 300 D turbo 297K runs great. SOLD!
83 240D 4 spd manual- parted out then junked
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