Have a read of my experience here with MB brake pipes (W210)

Bubble flare or double flare? - Mercedes-Benz Owners' Forums

Even with the correct tool and fittings, doing this under the car is difficult simply because of the pressures involved. Flaring the new pipe is easy as soft, but that MB pipe is another thing altogether.

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David


1996 Mercedes S124 E300TD - 129k - rolling restoration project -

1998 Mercedes W210 300TD - 118k (assimilated into above vehicle)