GTStinger comment x2. Find a hydraulic hose shop that will fabricate new hoses and new fittings for you. I'll be your fittings are seized.

When I questioned the owner of the hydraulic hose shop I used about being able to make a hose that would handle the pressure of my "mighty" mercedes oil cooler, he spit, swore, laughed and said "Dave I make hoses for drilling rigs.....now if you want to talk about hoses under pressure lets talk about that, not our puny mercedes ones!"

New hoses and new fittings were $125. Fit perfectly.

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'89 260e (212K Mi.), '92 400e (208K Mi.), '92 400e (not a misprint) (146K Mi.), '95 C220, '81 240D--Sold

The two hydraulic line shops here wouldn't do it, for liabilities sake. That, and they both thought they would have trouble finding metric line. Therefore, I have to do Mach4s conversion.

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1998 VW Cabrio
2001 Audi SomeRoad A/T (no air suspension)
2003 Audi DeadRoad M/T (no vroom, for later)
2002 Audi NoRoad A/T (nothing under the hood, being rebuilt)

Unless your 300TD is different than my 84 300D, 5/8" ID hose fits tight. See my post #2. The temp & pressure conditions are easy for any hydraulic hose, including AC hose. Your high-pressure power steering hose is the only one that takes care in selection (2-wire works fine).

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1984 & 1985 CA 300D's
1964 & 65 Mopar's - Valiant, Dart, Newport
1996 & 2002 Chrysler minivans

Doh, I missed that bit... Now, If I could find someone that wasn't worried about liabilities...

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1998 VW Cabrio
2001 Audi SomeRoad A/T (no air suspension)
2003 Audi DeadRoad M/T (no vroom, for later)
2002 Audi NoRoad A/T (nothing under the hood, being rebuilt)