Leon Mk1
| Engine codes AGP, AQM |
| At low engine speeds, the decompression in the intake manifold is not sufficient to ensure the correct functioning of the exhaust recirculation. For that reason, after starting engine while the RPMs and load are low, close the butterfly valve to increase decompression. |
| 1 - | Upper part of intake manifold |
| 2 - | 10 Nm |
| 3 - | 15 Nm |
| 4 - | O-ring |
| q | Renew |
| 5 - | Lower part of intake manifold |
| 6 - | Exhaust recirculation valve |
| 7 - | 25 Nm |
| 8 - | Gasket |
| q | Renew |
| 9 - | 20 Nm |
| 10 - | Goes to air filter inlet hose |
| 11 - | Intake manifold regulating flap unit -N239- |
| q | Removing and installingn → Chapter |
| q | With decompression capsule Checking → VAS 5051 |
| q | With switching valve Testing → VAS 5051 |
| 12 - | Support |
