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Practical hints
What to do if …
Display symbol Display messages Possible cause/consequence Possible solution
Z The cooling fan for the coolant is
malfunctioning.
̈ Observe the coolant temperature indicator in the
instrument cluster (
୴ page 26).
If the coolant temperature is under 120°C, you may
continue driving to an authorized Mercedes-Benz
Center.
̈ Avoid placing heavy loads on the engine (e.g. by
driving uphill) as well as stop-and-go traffic.
̈ Have the fan replaced as soon as possible.
±
Display malfunction
Visit workshop
Certain electronic systems are
unable to relay information to
the control system. The follow-
ing systems may have failed:
ț Coolant temperature display
ț Tachometer
ț Cruise control display
̈ Have the electronic systems checked by an autho-
rized Mercedes-Benz Center.
Engine
Service
There may be a malfunction in:
ț the fuel injection system
ț the ignition system
ț the exhaust system
̈ Have the engine checked as soon as possible by an
authorized Mercedes-Benz Center.