Contents: Petrol models 🠛 Diesel models 🠛
Recheck the engine oil and coolant levels. Make sure all wires and hoses are connected and that no tools or rags are left in the engine compartment.
Petrol models
1. Remove the spark plugs, disable the engine management system (remove the "M" protection fuse from the fuse box in the engine compartment, note that this fuse also supplies power to the emergency seat belt tensioner mechanism and air bag systems, so see the notes and warnings in Section Front seat belt tensioner system - general information and Section Airbag system - general information and precautions and Removal and installation of airbag components). Crank the engine with the starter until the oil pressure warning light goes out.
2. Install the spark plugs and fuse.
3. Start the engine, keeping in mind that this may take a little longer than usual.
4. Inspect the engine while idling for fuel, water and oil leaks. When first started, smoke and a burning smell may appear due to burning lubricant.
5. Let the engine idle until hot water flows through the top hose, then turn it off.
6. After waiting a few minutes, recheck the oil and coolant levels and top them up as necessary (see Schedule of current maintenance).
7. On all engines except the F7R, there is no need to re-tighten the cylinder head bolts.
8. If new pistons, rings or crankshaft bearings have been installed, the engine needs to be run in. For the first 800 km of travel, do not turn on full throttle or overload it at low speeds. After running in, it is recommended to change the oil and filter.
Diesel models
1. Fill the fuel system as described in Chapter Power and exhaust systems.
2. On turbocharged models, prime the lubrication system by disconnecting the fuel shut-off valve from the fuel pump and cranking the engine with the starter for 10 seconds with 30-second pauses. Finally, reconnect the fuel shut-off valve (check that the oil pressure warning light comes on when the starter is turned on).
3. Press the gas pedal all the way down, turn the ignition key to position "M" and wait until the heating indicator lamp goes out.
4. Start the engine.
5. Once the engine is running, maintain it at a fast idle. Check that the oil pressure warning light goes out, then check for any oil, fuel or coolant leaks. Where applicable, check the power steering couplings.
6. Keep the engine idling until you feel hot coolant flowing through the upper radiator hose, indicating normal operating temperature has been reached. Then turn off the engine and allow it to cool.
7. Recheck the oil and coolant levels and top them up if necessary (see Schedule of current maintenance).
8. Check the injection timing and idle speed as described in Chapter Power and exhaust systems.
9. On turbocharged models, tighten the cylinder head bolts to final torque after warming the engine to normal operating temperature (the cooling fan should turn on), and then wait at least 2 hours for it to cool.
10. If new pistons, rings or crankshaft bearings have been installed, the engine needs to be run in. For the first 800 km of travel, do not turn on full throttle or overload it at low speeds. After running in, it is recommended to change the oil and filter.