Blue Lagoon 0 Report post Posted August 17, 2015 The remote function on my only key stopped working. I tried replacing the battery however found the that one of the buttons on the circuit board was broken. As it was my only key I decided to get another. I found one on ebay and have had it cut and programmed. Both keys will manually lock/unlock and start the car. The locksmith who programmed the key could not get the remote function to work. (he tried this before programming transponder) I tried programming the key (key on and off 5 times then unlock button while pushing the lock button 3 times)with no joy. I removed the transponder chip and was able to get the remote function to work, however of course could not start the car (no chip) I replaced the chip and the remote still worked until I started the car. After stopping the car the remote function wouldn't work. I repeated this a few times. Remote can only be programmed without chip in and it seems to cancel it after starting the car. Any ideas? Quote Share this post Link to post Share on other sites
dkonsta1 109 Report post Posted August 17, 2015 Is it the infrared remote or radio frequency? Quote Share this post Link to post Share on other sites
Blue Lagoon 0 Report post Posted August 17, 2015 Not sure. I think uses radio frequency. 2002 320i diamond key Quote Share this post Link to post Share on other sites
dkonsta1 109 Report post Posted August 17, 2015 ok. not sure if the programing procedure you described is correct. did you Google it? Quote Share this post Link to post Share on other sites
Blue Lagoon 0 Report post Posted August 17, 2015 Yeah. I've seen it on quite a few sites. Key to first position and back to off 5 times then remove key, hold down unlock button and press lock button 3 times. It works when the chip is removed however as soon as I replace the programmed chip and insert into the ignition it wipes the remote function. Quote Share this post Link to post Share on other sites
hybrid 1044 Report post Posted August 21, 2015 You need to sync all keys with the car and activate one after the other to re-associate the lock-unlock function. Quote Share this post Link to post Share on other sites
andyb184 7 Report post Posted August 25, 2015 You need to sync all keys with the car and activate one after the other to re-associate the lock-unlock function.That's correct. You need to figure out which one is Key 1, do that one first and then all others. Otherwise it won't hold the sync.sent from my android Quote Share this post Link to post Share on other sites
