Mechanical key
See also:
Roadside Assistance
The Mercedes-Benz Roadside Assistance Program offers technical help in the event
of a breakdown. Calls to the toll-free Roadside Assistance Hotline are answered
by our agents 24 hours a day, 365 d ...
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 ...
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 t ...
