Power Steering: Description
NOTE:
On 140 models and 1970-71 164 models, power steering is optional. On 1972-73 models, power steering is standard.
This power steering unit is a ZF recirculating ball and nut type. Main components of this system are the steering gear, power pump, and fluid reservoir (with filter). In addition to the mechanical gear, the power cylinder and control valves are built into the gear housing.