The easiest way is to take it to a place that cuts car keys, and have them put it in their key tester - a little machine that you stick the key in and push a button, and if a light comes on they know not to try cutting a key for you because it won't work.
BMW keys use what is called an EWS chip. These chips are built into every key, even spares and plastic wallet keys. They can only be obtained from BMW. Each car can only have 10 keys. If all 10 are lost, the entire ignition system must be replaced for a new chip set.
Transponder Keys - have a chip inside the handle of the key, which also often features remote control buttons for locks & trunk access. "Remote keys" and "switchblade keys" are two types of transponder keys.Smart Keys/ FOBIK Keys - an all-in-one car remote & key, usually standard with push-button start & "keyless entry" carsVATS Keys - for older model GM vehicles have been called "chip keys" because of the resistor on the key blade. The resistor looks like a "chip," but in fact is not a computer chip at all.
Most 2000 Concordes do have chip keys.
It sounds as if the ECW chip inside you key is bad. this is the chip that talks to your car and tells the vehicle that the key is the proper key. The cut of the key is right so it will unlock the tumblers, and let you turn the ignition switch, but the car needs that signal from chip to tell it to start. you will need to replace the key at the dealership. about ($120-$190). The keys on websites wont work they may be cut right but only BMW has the key with the proper signal to start the car.
The dealership (if it is one of those keys which require a coded chip reprogram).
Call a mechanic.
how do you unlock the trunk of a 740il BMW with keys locked inside
Off road motorcycles do not have keys. Enduro (dual sport) and street motorcycles have keys. Older BMW motorcycles have a "key" but it is not unique to the individual motorcycle. That is, a BMW key will start any old BMW motorcycle. yes motorcycles have keys
If the plastic portion you grip is grey in color on the original you had or have now, that's pretty much a dead giveaway that yes you do have a coded chip key. To be sure just go to Walmart auto department where they make keys. They can test it and tell you if it has a chip.
break the windows
Not all models have chip. Engine immobilizer is a part of security and was optional.
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