See also:

Checking and Changing the Engine Coolant
WARNING: Do not remove the radiator cap when the engine is hot. When the engine is hot, the engine coolant is under pressure and may erupt through the opening if the cap is removed. You could be ...

Spark plugs
Make sure to install new spark plugs of the correct heat range. ...

Door locks
WARNING: o Unlocked doors can be dangerous. Before you drive away (especially if there are children in the car), be sure that all the doors are securely closed and locked so that the doors cannot ...