power steer fluid on 1994 BMW 325i

where do you fill the power steering fluid and should you check your oil when engine is warm or cold? thanks

Asked by for the 1994 BMW 325i
The min and max level on the engine oil dipstick give you a "range" where checking the oil hot or cold wont matter (naturally the oil will be higher when the oil is hot). The power steering reservoir has a black screw off cap in the engine compartment ( I had one of these cars and can't remember where it is), and should not require frequent topping up unless there is a leak. Ask any one at a auto parts store they will come out and show you.