What size engine does the 2003 Audi A6 have?

The 2003 Audi A6 came with a variety of engine options. To determine the exact engine size, you'll need to know the specific model trim level.

Here are some common engine options for the 2003 Audi A6:

* 2.7L V6: This engine produces around 200 horsepower.

* 3.0L V6: This engine is slightly more powerful than the 2.7L, producing around 220 horsepower.

* 4.2L V8: This engine was available in the A6 Quattro model and produced around 300 horsepower.

If you can provide the specific trim level (e.g., 2.7T, 3.0, 4.2 Quattro), I can give you the exact engine size. You can usually find this information on the vehicle's identification number (VIN) or on the car's registration documents.