Leon Mk2
| Injection system - Components overview |
| 1 - | Plug |
| q | Replace gasket if it shows signs of damage. |
| 2 - | Engine guard with air filter |
| q | Air filter: removing and installing → Chapter |
| q | Components overview → Chapter |
| 3 - | Conduits guide |
| q | Clipped over fuel rail |
| 4 - | 10 Nm |
| 5 - | Bleed valve |
| q | Fuel delivery system: bleed → Chapter |
| 6 - | Fuel rail with injectors |
| q | Components overview → Chapter |
| 7 - | 20 Nm |
| 8 - | of the brake servo |
| 9 - | Connector |
| q | Black, 6 contacts |
| q | For Throttle valve module -J338- |
| q | Connector contacts are gold-plated |
| 10 - | It comes from Solenoid valve 1 for active carbon filter (pulsed) -N80- |
| q | → Item |
| 11 - | Intake manifold |
| q | Components overview → Chapter |
| 12 - | Gasket |
| q | Renew |
| 13 - | 10 Nm |
| 14 - | It comes from Exhaust gases recirculation valve -N18- |
| q | If the control unit is replaced, adapt the exhaust gas recirculation valve -N18- → Chapter; Functions and components: adjusting |
| q | Without exhaust gas recirculation for engines with code BKY, manufactured from 05/2005 |
| 15 - | Lambda probe after catalytic converter -G130-, 50 Nm |
| q | Location: in main catalytic converter |
| q | Only grease thread with “G 052 112 A3” → ETKA (electronic parts catalogue). The “G 052 112 A3” must not reach the probe body grooves |
| q | Remove and install with wrench -U-40080- |
| q | In case of leakage, cut out and replace sealing ring |
| 16 - | Connector |
| q | ForLambda probe after catalytic converter -G130- and Heater for lambda probe 1, after catalytic converter -Z29- |
| q | Located in a box on the floor of the vehicle, cover with protective plate. |
| q | 4 pins |
| q | Gold connector contact 3 |
| 17 - | Lambda probe -G39-, 50 Nm |
| q | Location: in exhaust manifold |
| q | Remove and install with wrench -U-40080- |
| q | Only grease thread with “G 052 112 A3” → ETKA (electronic parts catalogue). The “G 052 112 A3” must not reach the probe body grooves |
| q | In case of leakage, cut out and replace sealing ring |
| 18 - | Connector |
| q | For Lambda probe -G39-and Heater for lambda probe -Z19- |
| q | 6 -pin → Item |
| q | Gold plated contacts |
| 19 - | Engine speed sender -G28- |
| q | Fitting location → Item |
| q | Before removing, remove intake manifold → Item |
| 20 - | 5 Nm |
| 21 - | O-ring |
| q | Renew |
| 22 - | Clip |
| q | Check that it is seated securely |
| 23 - | Connector |
| q | For Coolant temperature sender -G62- |
| q | 2-pin, gold coloured |
| 24 - | Coolant temperature sender -G62- |
| q | Before removing, possibly reduce cooling system pressure |
| q | Resistance values for coolant temperature sender -G62- → Fig. |
| 25 - | Plug |
| q | Before removing, possibly reduce cooling system pressure |
| 26 - | O-ring |
| q | Renew |
| 27 - | 10 Nm |
| 28 - | Thermostat housing |
| 29 - | Supply hose |
| q | Black, with white mark |
| q | Immobilise with spring clips |
| q | Check that it is seated securely |
| q | From fuel filter → Item. |
| 30 - | Connector |
| q | For engine control unit |
| q | Only disconnect or connect with ignition switched off |
| 31 - | Engine control unit |
| On replacement, the control unit must be matched to the electronic immobilizer → Chapter; Functions and components: adjusting |
| 32 - | Support |
| q | For engine control unit |
| 33 - | 2 Nm |
