Where is the PCV and brake booster on a 1985 Mercedes 500 SEC?

On a 1985 Mercedes 500 SEC, the Positive Crankcase Ventilation (PCV) valve is typically located on the valve cover, connected to the intake manifold. The brake booster is mounted on the driver's side of the engine bay, attached to the brake master cylinder. It is a large, round component that assists with brake pressure when the brake pedal is pressed.