Where is the battery located in a 2002 Audi a6?
It's under the hood near the windshield. Lift up the small panel
right in the middle to inspect or clean the posts. To remove the
battery you remove the entire plastic panel--remove the weather
strip (it just slips on) about 10 inches from the windshield, slide
the full-width plastic panel toward the front of the car and remove
it.