2006 Mercedes E-Class Owner's Manual - Page 450

Practical hints Bleeding the fuel system (Diesel engine only) Bleeding the fuel system (Diesel engine only) Allowing the vehicle to be driven until the fuel tank is empty is not recommended. If this occurs, air may be pulled into the fuel system. If this happens, the ú malfunction indicator lamp (USA only) or the ± malfunction indicator lamp (Canada only) comes and it may be possible that the engine will not start immediately after you refuel the vehicle. After refueling: Turn the SmartKey in the starter switch to position 2 for at least 30 seconds. Return the SmartKey in the starter switch to position 0. Turn the SmartKey in the starter switch to position 3 and hold it there for up to 60 seconds, i.e. until the engine is running surge-free. If the engine does not start: Try to start the engine again without interruption for a maximum of 60 seconds until it is running smoothly. If the engine still does not start even after this attempt, do not make any further attempts to start the engine. Contact an authorized Mercedes-Benz Center. i Where the ú malfunction indicator lamp (USA only) or the ± malfunction indicator lamp (Canada only) in the instrument cluster has been illuminated for the above condition, it will remain illuminated until the engine was cycled on and off four times in a row. 449