2008 Mercedes S-Class Owner's Manual - Page 651
2008 Mercedes S-Class Manual
Page 651 highlights
Practical hints What to do if ...? Display Key not recognized Possible cause/consequence The SmartKey with KEYLESS-GO* is not recognized while the engine is running because the SmartKey with KEYLESS-GO* is not in the vehicle. Possible solution Stop the vehicle in a safe location or as soon as it is safe to do. Engage the electronic parking brake ( page 395). Search for the SmartKey. Otherwise the vehicle cannot be centrally locked nor can the engine be started again after the engine is stopped. The SmartKey with KEYLESS-GO* is not recognized while the engine is running because there is strong radio-frequency interference. Stop the vehicle in a safe location or as soon as it is safe to do. Engage the electronic parking brake ( page 395). Remove KEYLESS-GO* button from the starter switch ( page 345). Operate the vehicle with the SmartKey in the starter switch. The SmartKey with KEYLESS-GO* is momentarily not recognized. Change the position of the SmartKey in the vehicle. If necessary, operate vehicle using SmartKey with KEYLESS-GO* in starter switch under KEYLESS-GO* button ( page 345). 650
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