Where is Power steering fluid reservoir of 1998 BMW 328i?

The power steering fluid reservoir on a 1998 BMW 328i is located under the hood, on the driver's side (left side when facing the engine), near the firewall. It's usually a small, clear or translucent plastic reservoir with a cap. Look for a cap with a power steering symbol (often a steering wheel). It might be somewhat hidden behind other components, so you might need to move some things aside for a clear view.