You will have to use 2 wrenches...One to hold the fitting and the other to loosen the line. I have had to spray them with oil, let them sit a day, then hit them with a little heat. Not so much that it blows, but enough to get loose the connector.
Good luck.
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Benzmac:
Donnie Drummonds
ASE CERTIFIED MASTER AUTO TECHNICIAN
MERCEDES SPECIALIST 11 YRS
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