Your father's car uses a Smart Key. It consists of an electronic key and a metal insert key. The metal key can only be used to open the door/trunk in the event that the batteries are dead in the Smart Key. It (the metal key) can not start the car. The car uses a system known as DAS (Drive Authorization System). This system makes theft of the car very difficult. For some reason the car's ECU does not recognize the Smart Key. Each Smart Key must be programmed to the car. In the US dealers usually charge between $250-$300 for a replacement Smart Key.

In case you are wondering, the batteries in the key are not an issue. They provide power to transmit a signal to release the door locks or open/close the sunroof and windows. They are not necessary to start the car.

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Good luck.






1998 E320 Wagon