Petrol models
1. Remove the spark plugs.
2. Immobilize the engine, ensuring that it can be turned over with the starter without starting - disconnect the fuel pump relay (see Chapter Power supply system). Alternatively, locate and remove the fuel pump fuse.
Caution! On models equipped with a catalytic converter, immobilizing the engine by disabling the ignition system without disabling the power supply system may cause the converter working element to fail due to unburned fuel getting into it, which will then inevitably ignite during normal engine starting.
3. Crank the engine with the starter until the oil pressure warning light goes out. If the light does not go out after a few seconds of cranking the engine, recheck the oil level and the reliability of the oil filter. If everything is in order, check the condition of the wiring of the oil pressure switch. Do not continue trying until you are sure that oil is circulating properly in the engine.
4. Screw the spark plugs back into place and connect the power system.
Diesel models
1. Disconnect the electrical wiring from the shut-off valve on the high-pressure fuel pump (see Chapter Power supply system).
2. Turn the engine with the starter until the oil pressure indicator lamp turns off.
3. If the light does not go out after a few seconds of cranking the engine, recheck the oil level and the reliability of the oil filter. If everything is OK, check the condition of the wiring of the oil pressure switch. Do not continue trying until you are sure that the oil is circulating properly in the engine.
4. Connect the electrical wiring to the shut-off valve.
All models
1. Start the engine - the procedure may take a little longer than usual due to the need to fill the fuel system tract.
2. Leaving the engine running at idle, check it for signs of coolant, oil and fuel leaks. Do not panic if there is a burning smell or smoke - this is the burning of lubricants used during assembly.
3. On petrol modules, there may be a slight disruption in the stability of idle speed until the necessary parameters are restored in the ECU memory, which takes some time.
Material is available on the website www.SKODABOOK.ru
4. On diesel and 1.6L models, hydraulic tappets may initially operate with an increased noise level, but after a few seconds the background noise should return to normal.
5. If everything is OK, wait until the upper radiator hose warms up, then turn off the engine.
6. On diesel models, check the valve timing of the high-pressure fuel pump and idle speed.
7. Allow the engine to cool for a few minutes, then check the oil and coolant levels. Make adjustments if necessary.
8. On all models there is no need to tighten the cylinder head fasteners.
9. If the pistons, piston rings or crankshaft bearings have been replaced, the engine should be run in as if it were new. That is, during the first 1000 km (600 miles) of driving, avoid opening the throttle fully, try not to coast or drive at low engine speeds. It is also recommended to change the engine oil and oil filter after the break-in period.