See also:

Headlamps fogged up on the inside
The headlamps may fog up on the inside if there is high atmospheric humidity. - Drive with the headlamps switched on. The level of moisture diminishes, depending on the length of the journey and ...

Brake fluid
WARNING Over a period of time, the brake fluid absorbs moisture from the air; this lowers its boiling point. If the boiling point of the brake fluid is too low, vapor pockets may form in the ...

Headlamp cleaning system
The headlamps are cleaned automatically if the "Wipe with washer fluid" function is operated ten times while the lights are on and the engine is running. When you switch off the igni ...