Leon Mk2
| Removing and installing parts of the injection system |
| 1 - | Motronic control unit connector -J220- |
| q | Connect or disconnect only when the ignition is off |
| 2 - | Motronic control unit -J220-* |
| q | Connect or disconnect only when the ignition is off |
| q | For injection system, Lambda regulation, activated charcoal filter solenoid valve, knock control, governed speed, ignition and self-diagnosis |
| q | If replacing, the engine control unit must be adapted to the electronic immobilizer and the throttle valve control unit; adapting components → Chapter |
| 3 - | Motronic control unit support |
| 4 - | 3 Nm |
| 5 - | Connector |
| q | Black, 4-pin |
| q | For intake manifold pressure sender -G71- with intake air temperature sender -G42- |
| q | Contacts gold plated |
| 6 - | Connector |
| q | Black, 3-pin |
| q | For engine speed sender -G28- |
| 7 - | Air filter |
| q | Removing and installing → Chapter |
| q | Separate and fit → Fig. |
| 8 - | Securing clip |
| q | Note the version |
| 9 - | Cable/line guide |
| q | Clipped onto fuel rail |
| 10 - | Connector |
| q | Black, 2-pin |
| q | For injectors -N30-, -N31-, -N32- and -N33- |
| 11 - | Fuel supply pipe |
| q | black |
| q | Ensure tight fit |
| q | Secure with spring-type clips |
| q | This comes from the fuel filter → Item |
| 12 - | 10 Nm |
| 13 - | Fuel rail with injectors |
| q | Removing and installing → Chapter |
| 14 - | 20 Nm |
| 15 - | Connector |
| q | Black, 6-pin |
| q | For throttle valve control unit -J338- |
| q | Contacts gold plated |
| 16 - | Of the activated charcoal filter solenoid valve -N80-*/** |
| q | → Item |
| 17 - | Of the brake servo |
| 18 - | Intake manifold |
| q | Removing and installing → Chapter |
| 19 - | O-ring |
| q | Renew |
| q | Note the fitting position |
| 20 - | Lambda probe before catalytic converter -G39-* 50 Nm |
| q | Situated in the front exhaust pipe |
| q | Grease thread only with “G5”. “G5” must not get into the slots on the probe body |
| q | Remove and fit with -U-40080- |
| q | In case of leaking, nip open and replace the o-ring |
| 21 - | Connector |
| q | Black, 4-pin |
| q | For Lambda probe -G39- and heater for Lambda probe -Z19- |
| q | Contacts 3 and 4 gold-plated |
| 22 - | Engine speed sender -G28-* |
| q | Situated in the cylinder block, intake side |
| 23 - | 5 Nm |
| 24 - | Guide tube |
| q | For dipstick |
| 25 - | 3 Nm |
| q | Observe what is indicated in note → Fig. |
| 26 - | Securing clip |
| q | Ensure tight fit |
| 27 - | O-ring |
| q | Renew |
| 28 - | Connector |
| q | Black, 2-pin |
| q | For coolant temperature sender -G62- |
| q | Contacts gold plated |
| 29 - | Cap |
| q | If necessary, release the pressure in the cooling system before removing |
| 30 - | Coolant temperature sender -G62-* |
| q | If necessary, release the pressure in the cooling system before removing |
| q | Resistance values for coolant temperature sender → Fig. |
| 31 - | Thermostat housing |
