Hydraulic pump on the estate models is on the back of the steering pump so makes no difference. I managed to unbolt the pump assembly and move it out of the way without disconnecting any of the hoses.

That was with a 4 cylinder engine with loads of room at the front which is why I thought you may have to remove the rad on a 6.

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Mick J
'08 Chrysler 300CRD (MB OM 642 engine)
'95 E220 estate
'89 230TE (R.I.P.)