See also:

Correct use of the seat belts
WARNING USE SEAT BELTS PROPERLY - Seat belts can only work when used properly. Never wear seat belts in any other way than as described in this section, as that could result in serious injuri ...

High outside temperatures
If DEF heats up to over 122 °F (50 °C) for extended periods, e.g. as a result of direct sunlight on the DEF reservoir, DEF can decompose. Ammonia vapors develop as a result. WARNING When o ...

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 ...