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Practical hints
What to do if …
Display symbol Display messages Possible cause/consequence Possible solution
Y
Hood open
You are driving with the hood open. ̈ Close the hood (୴ page 319).
F
Key
Check battery
The SmartKey with KEYLESS-GO* batter-
ies are discharged.
̈ Change the batteries (୴ page 431).
Key
not recognized
The SmartKey with KEYLESS-GO* is not
recognized while the engine is running
because
ț the SmartKey with KEYLESS-GO* is
not in the vehicle
ț there is strong radio-frequency inter-
ference
̈ Stop the vehicle in a safe location as
soon as it is safe to do so.
̈ Search for the SmartKey.
Otherwise the vehicle cannot be cen-
trally locked nor can the engine be
started again after the engine is
stopped.
Key
not recognized
The SmartKey with KEYLESS-GO* is mo-
mentarily not recognized.
̈ Change the position of the SmartKey
in the vehicle.
̈ Operate the vehicle with the
SmartKey in the starter switch if nec-
essary.
Key
still in vehicle
A SmartKey with KEYLESS-GO* left in the
vehicle was recognized while locking the
vehicle from the outside.
̈ Take the SmartKey out of the vehicle.
Keyless Go
Check system
The KEYLESS-GO* system is malfunction-
ing.
̈ Visit an authorized Mercedes-Benz
Center as soon as possible.