Wait! It will eventually fall off when you are not expecting it
The engine control unit (ECU) on a Skoda Octavia 2003 is typically located under the dashboard on the driver's side, near the pedals. It is often mounted on the firewall in the engine compartment. You may need to remove some panels or covers to access it.
There is 3 round plastic caps on the top of the cover,1 at the back and 2 at the front. Pop these out with a screwdriver and there is a nut under each one. Take off the nuts, take out the dipstick and take off the oil filler cap and the cover comes off.
Almost in the middle of the windscreen area, under the bonnet and under the plastic panel holding the window washer jets. The air filter is also housed in this area.
Under the armrest that's between the driver and passenger seat. You can get at it easier if you put your hand under the front of the armrest and pull the button that's there, the armrest can go straight up out of the way.
Under the plastic cover just below the windshield on the right hand side side. You don't need to remove the cover to change the filter, it is enough to lift the front of the cover and reach in to release the filter. It is a bit tricky since it is pretty tight, but it can be done.
in the tank,remove rear seat swab,undo small plate pump under plate
you have to remove the flywheel, take engine cover off, remove flywheel, its under it, next to the points, you have to remove the flywheel, take engine cover off, remove flywheel, its under it, next to the points, you have to remove the flywheel, take engine cover off, remove flywheel, its under it, next to the points, you have to remove the flywheel, take engine cover off, remove flywheel, its under it, next to the points,
At the rear - the transmission end - of the engine. Down low. Often hidden under a heat shield.
how do you remove the engine? Is it pulled from the top or do you unbolt the sub frame and slide it out from under the car?
It depends on the boat. Some have an engine cover that is removable and the engine can be removed easily. Others have the engine under a deck and you literally have to cut a hole in the deck to remove the engine. On really big boats it may be easier to cut a hole in the side of the boat to remove the engine.
remove plastic shroud under engine. remove plug on oil pan.
Remove the drain plug under the engine and remove oil until it is at the proper level. Running the engine with too much oil can cause damage.