A5
| Secondary air system - exploded view |
| 1 - | Bolt |
| q | 9 Nm |
| 2 - | Air cleaner |
| q | For secondary air pump |
| 3 - | Hose |
| q | For secondary air |
| 4 - | Air cleaner housing |
| 5 - | Nut |
| q | 9 Nm |
| 6 - | Hose |
| q | For secondary air |
| 7 - | Bolt |
| q | 5 Nm |
| 8 - | O-ring |
| q | Renew |
| 9 - | Vacuum hose |
| 10 - | Combination valve for secondary air system (left-side) |
| q | Symmetrically reversed on right side |
| q | Fitting location: at rear of cylinder head |
| q | Checking → Chapter |
| q | Removing and installing → Chapter |
| 11 - | Sender for secondary air pressure |
| q | Cylinder bank 1 (right-side) sender 1 for secondary air pressure -G609- |
| q | Cylinder bank 2 (left-side) sender 2 for secondary air pressure -G610- |
| q | Removing and installing → Chapter |
| 12 - | O-ring |
| q | Renew |
| 13 - | Connection |
| 14 - | Bolt |
| q | 5 Nm |
| 15 - | O-ring |
| q | Renew |
| 16 - | Gasket |
| q | Renew |
| 17 - | Bolt |
| q | 9 Nm |
| 18 - | Connecting pipe |
| q | To cylinder head (left-side) |
| 19 - | Bolt |
| q | 9 Nm |
| 20 - | Gasket |
| q | Renew |
| 21 - | Bolt |
| q | 9 Nm |
| 22 - | Bracket |
| q | For secondary air pump |
| 23 - | Nut |
| q | 9 Nm |
| 24 - | Bolt |
| q | 9 Nm |
| 25 - | Bonded rubber bush |
| 26 - | Secondary air pump |
| q | Cylinder bank 1 (right-side): secondary air pump motor -V101- |
| q | Cylinder bank 2 (left-side): secondary air pump motor 2 -V189- |
| q | Fitting location: behind auxiliary radiator |
| q | Removing and installing → Chapter |
| q | Checking in Guided Fault Finding → Vehicle diagnostic tester |
| 27 - | O-rings |
| q | Renew |
