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Practical hints
What to do if …?
Display symbol Display message Possible cause/consequence Possible solution
A
Reserve fuel
The fuel level has dropped below the re-
serve mark.
̈ Refuel at the next gas station
(
୴ page 312).
I
Remove key
You have forgotten to remove the
SmartKey.
̈ Remove the SmartKey from the start-
er switch.
Replace key
No additional code available for SmartKey
or SmartKey with KEYLESS-GO*.
̈ Contact an authorized Mercedes-Benz
Center as soon as possible.
Change
key batteries
The SmartKey with KEYLESS-GO* batter-
ies are discharged.
̈ Change the batteries (୴ page 425).
Key
not detected
The SmartKey with KEYLESS-GO* is not
recognized while the engine is running be-
cause
ț the SmartKey is not in the vehicle
ț there is strong radio-frequency inter-
ference
̈ Stop the vehicle as soon as it is safe to
do so.
̈ Apply the parking brake (୴ page 58).
̈ Search for the SmartKey.
Otherwise the vehicle cannot be centrally
locked nor can the engine be started
again after the engine has been stopped.
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 necessary.