Golf Mk5
| Assembly overview - secondary air system, engine code BGU |
| 1 - | Combination valve |
| 2 - | 25 Nm |
| 3 - | Exhaust gas recirculation valve -N18- with exhaust gas recirculation potentiometer -G212- |
| q | If renewed, adapt engine control unit to exhaust gas recirculation valve → vehicle diagnosis tester, “Guided function”. |
| 4 - | 10 Nm |
| 5 - | O-ring |
| q | Renew if damaged. |
| 6 - | Pressure hose |
| q | Check for secure seating. |
| q | Press together at front to release. |
| 7 - | Intake hose |
| q | For secondary air pump. |
| 8 - | To air filter |
| 9 - | Secondary air pump motor -V101- |
| 10 - | Connector |
| q | 2-pin. |
| 11 - | 10 Nm |
| 12 - | 25 Nm |
| 13 - | 15 Nm |
| 14 - | Bracket |
| q | For secondary air pump motor. |
| q | Secured to intake manifold. |
| 15 - | Intake manifold lower part |
| 16 - | 10 Nm |
| 17 - | Gasket |
| q | Note installation position. |
| q | Renew. |
| 18 - | Connection |
| q | For combination valve. |
| q | Bracket for exhaust gas recirculation valve -N18-. |
