User's Manual Part 1

Function restrictions
For safety reasons, some functions are restric-
ted or unavailable
while the vehicle is in motion.
You will notice this, for example, because:
R
you will not be able to select certain menu
items
R
you will see a message to this effect
Cleaning
To clean, use a slightly damp cloth. The cloth
must be soft
and lint-free. For stubborn dirt, you
can use a mild cleaning agent. In particular, do
not clean the display with alcohol, acid or an
abrasive cleaning agent.
Introduction
7
Z
Qualified specialist workshop
Therefore,
have all work on and modifications to
electronic components carried out at a qualified
workshop. It has the necessary specialist knowl-
edge and tools for the work required. In partic-
ular, work relevant to safety or on safety-related
systems must be carried out at a qualified spe-
cialist workshop.
A Mercedes-Benz Service Centre is a qualified
specialist workshop.