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BMW i3 I01 (2014 - Current)
The BMW i3 and BMW i8 are the first two cars launch under BMW's new sub brand BMW i. The i3 is an all carbon fiber, all electric vehicle meant for urban mobility.

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  #1  
Old 05-30-2016, 04:18 AM
worelteam worelteam is offline
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I have another question: i like to add additional immobiliser for remote shut down the car. Do you know whitch line can i use ( cut) for immobiliser circuit?

Thank you for answer!

Last edited by God-Follower; 06-23-2016 at 10:22 AM.
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  #2  
Old 06-16-2016, 12:37 PM
God-Follower God-Follower is offline
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You mean like something to keep the car from turning on? Or are you trying to add in the factory alarm system?
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Last edited by God-Follower; 06-23-2016 at 10:22 AM.
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  #3  
Old 06-22-2016, 12:36 PM
worelteam worelteam is offline
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Yes! I mean to keep the car from turning on, and when is turned on i can turn it off remotely..
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Old 06-22-2016, 01:29 PM
God-Follower God-Follower is offline
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Not sure on the remotely part, but I bet we could come up with a switch driven immobilizer.
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Old 06-22-2016, 10:22 PM
worelteam worelteam is offline
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Originally Posted by God-Follower View Post
Not sure on the remotely part, but I bet we could come up with a switch driven immobilizer.
I have already a alarm unit with remote blockuing relay. I need to know which inmobiliser connection can i interrupt.
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Old 06-23-2016, 07:40 AM
God-Follower God-Follower is offline
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Originally Posted by worelteam View Post
I have already a alarm unit with remote blockuing relay. I need to know which inmobiliser connection can i interrupt.
If it were my car, I would try interrupting the power supply for the GWS(Gear Selector). This will prevent the Start/Stop button from functioning, effectively preventing the vehicle from starting.

It will likely not shut the vehicle off if it is already turned on however; in fact it may prevent you from turning the car off, putting it in park, etc. The parking brake will still operate however.

Here is a wiring diagram for it, I would install the relay on the power supply line coming from the fuse box. The wiring should run from the fuse box behind the glovebox, across the dash and up the steering column.

As far as I know there is no BMW approved method to installing an additional security device like this on the i3.

Anything I can think of to shut down the car forcefully is pretty risky and may damage the vehicle electronics/HV battery contactors, so I am pretty hesitant to recommend anything along those lines.
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Old 02-08-2017, 11:34 PM
worelteam worelteam is offline
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Yes. And how about interrupting immobiliser coils for keys?

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Old 02-09-2017, 06:35 AM
God-Follower God-Follower is offline
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Yes. And how about interrupting immobiliser coils for keys?

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You mean to prevent certain keys from starting the car?

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Old 02-09-2017, 07:44 AM
worelteam worelteam is offline
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Yes

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Old 02-14-2017, 12:44 AM
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Yes

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There is a test plan in ISTA to disable keys, so if you have a key you do not want to work in the car anymore(stolen, lost, etc) you can disable it.

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Old 02-15-2017, 08:00 AM
worelteam worelteam is offline
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No, i mean to interrupt receiving coils for immobiliser located in keys. After switching a secret switch is normal operation. All keys can start the car. After switch off, the car cannot recognise a key located in car. It is possible to cut one or more wires to disable key receiving?

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Old 02-15-2017, 08:29 AM
God-Follower God-Follower is offline
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Oh, gotcha. You could, but it would be a two step process. One, you would disable the FBD in the rear right corner of the car to prevent normal key usage. Then you would have to interrupt the exciter coil on the steering column, it is also capable of carrying the messages down to the BDC.

Note this would also disable your remote keyless entry, so you would have to manually unlock/lock the car.

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Old 02-15-2017, 08:57 AM
worelteam worelteam is offline
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I dont have a keyless entry. No problem. But the remote central lock will operate?

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Old 02-15-2017, 09:17 AM
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I dont have a keyless entry. No problem. But the remote central lock will operate?

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The button on the door will work, but all remote functions will cease when the remote control receiver(FBD) is disconnected. It is bussed from there to the BDC/CAS, so there is no easy way to selectively choose which signals to acknowledge.

An alternative would be to interrupt all the interior sensors and the ring aerial, but that would be a chore to have all 5 of them be switched at the same time. There is one by each rear seat, one in the center console and one in the frunk.
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Old 02-15-2017, 09:51 AM
worelteam worelteam is offline
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Yes, the second choice is better for me. I need to know which cable can i iterrupt and no error code send the control unit on ista...

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Old 02-15-2017, 10:09 AM
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Originally Posted by worelteam View Post
Yes, the second choice is better for me. I need to know which cable can i iterrupt and no error code send the control unit on ista...

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Here is the wiring diagram. It will likely set faults in the car to disconnect those aerials, no easy way around that. But they should resume operation once the switch is flipped.

If you wanted to go all-out on this I suppose you could measure the internal resistance of the aerials and then install a resistor pack after your switch that individually matched the resistance of the aerials, so you would drivert the signals to the resistor pack instead of the aerials.

This is getting pretty complex though...
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