[Makavelif32]

Hey guys so I have a 435i and my key won't work. I changed battery twice. Still didn't work. Checked and replaced damaged fuses, still nothing. I even got my key checked to see if it's working and it's 100% functional. I was told that it could be the module but most likely the antenna that is in the back of the car. I know if I replace it it'll need to be coded but I can't seem to find the part or the part number anywhere. Any help would be greatly appreciated! Thanks so much

[atzebmw]

What about the replacement key?
Does it work?

[atzebmw]

https://www.newtis.info/tisv2/a/en/f...ensor/Hsp46Y4T

[Makavelif32]

Originally Posted by atzebmw

https://www.newtis.info/tisv2/a/en/f...ensor/Hsp46Y4T

Hey thanks so much for the reply. I noticed that there is 3 or 4 other radio control receivers. Could the others also be not working? And also this does need coding after replacement? Thanks again bud

[atzebmw]

You have comfort access?
There are several antennas with comfort access, but not all of them can be defective.
Does the Tire pressure control work if you have?
What about the replacement key, does it work?
No need of coding for the receiver.

[Makavelif32]

Originally Posted by atzebmw

You have comfort access?
There are several antennas with comfort access, but not all of them can be defective.
Does the Tire pressure control work if you have?
What about the replacement key, does it work?
No need of coding for the receiver.

I have replaced my rims and new one don't have tire pressure sensors yet so the light is on yes. I do not have comfort access so can't open the door without unlocking first. And when I first bought the car it came only with one key. Thank you!

[atzebmw]

Originally Posted by Makavelif32

I have replaced my rims and new one don't have tire pressure sensors yet so the light is on yes. I do not have comfort access so can't open the door without unlocking first. And when I first bought the car it came only with one key. Thank you!

Then it is a bit more complicated because it does not allow you to find out whether the key or the remote control receiver is the problem.
I think the error memory should now be read out.

[namsons]

Try to switching on drive ready state in the event of emergency detection of the remote control. Found this in manual
1. Hold the back of the remote control against the mark on the steering column
2. Switch on drive-ready state within 10 seconds.

If remote not detected, change the position of remote and repeat the procedure.