2001 E53 3.0i No Crank no Start.

[upallnight]

Your indy can check the signal wire to the starter solenoid. If it doesn't have 12 volt when you turn the key to the start position than that is the reason why the starter is not turning.

There are many reasons why there is no 12 volt to the starter solenoid. On my Audi the signal wire had a break in it so I just located the break in the wire and spliced a new wire from the break to the solenoid.

[srmmmm]

Do you have a second key that you can try? I have the same problem with my wife's E46. My key will lock and open the car, turn the ignition switch cylinder, but will not energize the ignition or starter.

2002 X5 3.0 269,600 miles
2004 325i 117,700 miles

[LeiZ]

Let many other people already said, try the 2nd key first, and get back to us. If the coil in the key goes bad, the ignition switch won't send signal to starter motor, because the system is thinking the key is a cut-out duplicate, not with the chip.

If the starter is good, it's either key or ignition switch. Otherwise, it should at least crank. Oh wait, what if the crankshaft (NOT camshaft) positioning sensor goes bad in the cold temperature? Can you hook up a OBDII reader and check if there's any code throwing up?

[j_lopez]

Hi guys thns for the help! Iam i doomed now? Coz i only have one key? Any other route to verify it is not the key?

[Jungerishere]

Originally Posted by j_lopez

Hi guys thns for the help! Iam i doomed now? Coz i only have one key? Any other route to verify it is not the key?

Turn the key to position 2 for 30 seconds (without starting) then try starting. Heard from several sources that this method will start the car if having sync issues with the key. Worth a try...

[upallnight]

Originally Posted by j_lopez

Hi guys thns for the help! Iam i doomed now? Coz i only have one key? Any other route to verify it is not the key?

Yeah, order a new key from an authorized BMW dealer. It will take a couple of days, weeks, or months depending on your dealer. Keys are not cut/ or program at the dealer they either get it from the fatherland or Tennessee which ever factory is the closest.

[j_lopez]

Hi guys thanks for the reply, would ordering a new key require me to program it in the car? Coz my dilemma is that that car is not starting at the moment, i might not be able to successfully code it? Or the dealer will have it coded for me? Thanks

[Jungerishere]

Key will come coded to your car but you would need to program the lock function. Follow instruction below.

[Jungerishere]

Originally Posted by j_lopez

Hi guys thanks for the reply, would ordering a new key require me to program it in the car? Coz my dilemma is that that car is not starting at the moment, i might not be able to successfully code it? Or the dealer will have it coded for me? Thanks

BMW dealers should be able to test your key. Bring the key in and ask them to test it.

[Jungerishere]

Also, could be park sensor or relay preventing 12 volt to starter.

Originally Posted by upallnight

Your indy can check the signal wire to the starter solenoid. If it doesn't have 12 volt when you turn the key to the start position than that is the reason why the starter is not turning.

There are many reasons why there is no 12 volt to the starter solenoid. On my Audi the signal wire had a break in it so I just located the break in the wire and spliced a new wire from the break to the solenoid.