Underinflated tires
WARNING
Follow recommended tire inflation pressures.
Do not underinflate tires. Underinflated tires
wear excessively and/or unevenly, adversely
affect handling and fuel economy, and are
more likely to fail from being overheated.
Underinflated tires can:
• wear excessively and/or unevenly
• adversely affect fuel economy
• fail from being overheated
• adversely affect handling
See also:
Vehicle level
Important safety notes
Your vehicle regulates its height
automatically. All-round self-leveling ensures
the best possible suspension and constant
ground clearance, even with a laden vehicle.
W ...
Driving systems
Display messages
Level Selection
Not Permitted
Possible causes/consequences and ►
Solutions
You cannot change the vehicle level, because:
• you are exceeding the permissible speed ...
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 ...