bmw won't start with key

2002 BMW 530I E39 ENGINE M54 Car was starting fine the main problem was passenger door air bag and seat belt tensioner. If your BMW will not start but the lights and dash switch on have a look at the fault codes that the car reports.

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Your vehicle uses an module called an EWS or electronic immobilizer.

. It wouldnt lock or unlock the doors start the car or do anything else. Only show this user. These things are there.

The whole problem had been caused by a dead battery in the key fob. BMW wont start steering wheel is locked. Up to 25 cash back Hello The first thing to try will be another key.

Wait 5-10 seconds and try again. Test the keys functionality by trying to start the car with the spare key. 2 Feb 27 2012.

Insert the key turn to the start position turn back to the off position and remove the key. And from EWS system code 12 Key no2 Incorrect random code. To get the key to turning or the car to start you will need to move the steering wheel slightly then turn the key.

First perform a full health report on the scanner. The most common causes that hinders normal starting operation of your BMW X5 are dead key fob battery dead 12v battery corrosion on battery terminals bad alternator clogged fuel filter broken starter blown fuse empty gas tank immobilizer error or any fault in the electrical system. Because of the dead battery the car couldnt recognize that the key or its transmitter were nearby.

Older BMWs have a mechanical steering wheel mechanism to lock the steering wheel if the keys are moved. Ive replaced air bag and seat belt tensioner since then car wont start even not cranking. This module is actaully what allows the starter to turn when it sees a valid key the EWS code is correct in the EWS and the Engine control module it then releases the request to start the vehicle.

Defective push button or a fault inside the push button wiring harness. If the answer is no then hold the key in the start position and pump the clutch to the floor many times. It started right up.

EWS transmission parity. Ok so I lost my second key the other day and the only one I have now doesnt start my car up for some weird reason. I get code from engine module 128.

The object of these things is to rule out big sections of what could be wrong so I will ask again anyway you can get some friends to push the car and you in 3rd gear with ignition on and clutch inpop the clutch out once rolling fast and see if it will start. Below are some of the possible causes of a defective push-button start system and possibly why your BMW wont start. Youve got nothing to lose as its not going to harm anything and worst that happens is it doesnt work and you buy a new key from the dealer.

Common Causes Defective BMW key Comfort access not working Low battery voltage Electrical interference Water in BMW keyfob Local radio waves. If your BMW wont start and the battery has not died in your key fob then the push-button start system itself may be defective. It unlocks it even with the unlock button but after I insert it in the ignition and turn the car doesnt crank but it does go to ACC and start the radio and so.

If it still doesnt work there may be another cause.

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