You could come into contact with hot gases.
You could come into contact with other hot, escaping operating fluids.
Components in the engine compartment may continue running or start up suddenly, even if the ignition is switched off.
Make sure of the following before performing tasks in the engine compartment:
Certain component parts in the engine compartment can be very hot, e.g. the engine, the cooler and parts of the exhaust system.
If you open the cap, you could be scalded.
The coolant temperature must be below 70°C.
If the engine is cold, the coolant is up to marker bar .
If the engine is warm, the coolant is up to 1.5 cm over the marker bar .