you could use regular Transmission Fluid.
Use DEXTRON II. Remove the power steering fluid reservoir cap, and fill the power steering reservoir until the fluid reaches the ''full'' line.
they don't have power steering
It is part of the power steering pump assembly.
I believe that any kind of power steering fluid will work. You can actually use any type of hydraulic fluid (i.e. brake, power steering, or transmission). It is usually best to use only power steering fluid if you can get it.
DEX III Transmission Fluid
Use a turkey baster to remove excess fluid
Where the stick is.
The fluid reservoir should be built onto the power steering pump. There will be a cap on top to fill through.
There is a power steering reservoir under the hood of the car. Remove its cap, and the dipstick is attached, this is where a person can check the fluid level.
Secure the power steering pump with the retaining bolts. Attach the power steering hose to the power steering pump. Put the belt on to the power steering pump. Fill the power steering system with fluid.
To add power steering fluid to a 1989 Mercedes-Benz 420 SEL, locate the power steering reservoir, which is usually found near the front of the engine bay on the driver's side. The reservoir is typically a small, translucent container with a cap labeled for power steering fluid. Open the cap, check the fluid level, and add the appropriate power steering fluid as needed, ensuring not to overfill. Always check the owner's manual for specific fluid recommendations and procedures.
The fluid could be leaking from the pump, hoses, or steering rack. Wash the steering system, then you can see where the leak is coming from.