I had an accident in my 123 today, and as a result my power steering has stopped working. The belt and harmonic balancer are fine, and the P/S pump pulley is turning, but there is no power assist. The power steering was working perfectly fine beforehand. I'm completely stumped. The only part of the power steering system that could have been damaged in the accident was that the shaft of the P/S pump was struck by the upper oil cooler hose fitting.

__________________
1984 300D
Euro spec, 5 speed
217,000 miles

I'd loosen the return line and see if it's pumping fluid when you turn the wheel.

__________________
1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13