If you are not sure what power steering fluid to use in your BMW, it is best to consult your owner’s manual. Many different types of power steering fluid can be used in a BMW, but each type has its own specific requirements.
One common type of power steering fluid is ATF (automatic transmission fluid). This type of fluid is often used in older BMWs. However, you should not use ATF in a BMW that has a ZF Steering Rack.

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Another type of power steering fluid is mineral oil. Mineral oil is a common choice for newer BMWs. It is important to note that some BMWs require synthetic power steering fluid instead of mineral oil. Also, BMWs that are equipped with a ZF Steering Rack require synthetic power steering fluid.

Another type of power steering fluid is an electric pump (EPS) fluid. This type of fluid is best for newer BMWs that have EPS systems. The main difference between an electric pump system and non-electric pump system is the suction power of the pump. EPS systems use an electric motor to create the suction power, while non-electric systems use a belt to transfer power from the engine to the pump.

There are a few things to consider when choosing the right power steering fluid for your BMW. The most important factor is the type of power steering system that your car has.

If your car has a hydraulic power steering system, you should use a synthetic power steering fluid. If your car has a rack and pinion power steering system, you should use a mineral-based power steering fluid.

It’s also important to make sure that the power steering fluid is the correct weight for your car. Most BMWs use a power steering fluid that is 10W-30.
Make sure to consult your car’s owner’s manual to make sure you are using the correct type and weight of power steering fluid. Using the wrong type or weight of power steering fluid can damage your car’s power steering system.