Removing
1. We prepare the car for work (see "Preparing the car for maintenance and repair").
2. Remove the battery (see "Battery - removal and installation").
3. Remove the air filter (see "Air filter - removal and installation").
4. socket wrench by 10 mm loosen two nuts (1) and key by 13 mm two bolts (2) securing the battery tray.
5. Slide off the studs and remove the shelf.
6. Wrench if needed by 10 mm unscrew the two nuts and remove the air filter mounting bracket from the battery shelf.
Installation
Install the shelf in reverse order.