What size engine does the 2004 BMW 5-Series have?

The 2004 BMW 5-Series came with a variety of engine options. To give you a more specific answer, I need to know which model you're interested in.

Here are the available engine options for the 2004 BMW 5-Series:

Gasoline:

* 525i: 2.5-liter inline-six engine

* 530i: 3.0-liter inline-six engine

* 545i: 4.4-liter V8 engine

Diesel:

* 530d: 3.0-liter inline-six diesel engine

Please tell me which specific model you're interested in (e.g., 525i, 530i, etc.) and I can tell you the exact engine size.