The FSM specifies a torque value of 35-45 Nm for the fitting at the return line and the power steering pump reservoir. I'm sure tightening by feel will be fine, but it does make me curious: what kind of torque wrench exists to enable one to specify a torque value on a fitting that takes an open-ended wrench?

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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 159k miles
06 E320 CDI "Rutherford", Black on Tan, 178k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver on Tan, 145k mi, wastegate conversion, ALDA delete

19 Honda CR-V EX 75k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife