Leon Mk1
| Secondary air system display diagram |
| 1 - | Secondary air inlet valve -N112- |
| q | Testing → Chapter |
| 2 - | Vacuum reservoir |
| q | On engine cylinder head |
| 3 - | Turbocompressor air recirculation valve -N249- |
| 4 - | Non-return valve |
| 5 - | Overrun shutoff valve |
| 6 - | Brake servo |
| 7 - | Air filter with Air mass meter -G70- |
| 8 - | Secondary air pump motor -V101- |
| q | Testing → Chapter |
| 9 - | Combination valve |
| q | Testing → Chapter |
| 10 - | Fuel pressure regulator |
| 11 - | Intake manifold |
