Mad_Max 231 Report post Posted December 10, 2017 Guy in town here has an E46 325i that won't start due to a missing transponder chip.... long story short, he was changing the batteries in the key in a Mitre 10 carpark and thought the chip was a wasted piece of plastic that had broken off, so it has gone missing. So the question becomes, does anyone know the easiest/most cost effective way of replacing the chip? Or who is the best to do it? Obviously it will need to be coded to the car before being sent out. If anyone can point me in the right direction, or if any forum members can do it, it would be greatly appreciated. TIA Quote Share this post Link to post Share on other sites
Gabe79 410 Report post Posted December 10, 2017 (edited) This is an interesting story... The original keys had transponder and remote built into the same board. The coil around the ignition being a charger for the electronics in the key. Assuming then this is an aftermarket key, like this one: https://www.ebay.com/itm/EWS-Remote-Key-For-BMW-3-5-7-Series-E38-E39-E46-433MHZ-315MHZ-W-Chip-HU58-3BTN/172103766805 Note the little black thing next to the key, and the green electronics board. That's the transponder. You can buy those on ebay for a few bucks each, no fuss. You then need someone with an AK90+ to code it. You take out the EWS from the car, read it, code transponder to it. EDIT: Search ebay for "chip:PCF7935" to show just the transponder for that key above. EDIT2: I have keys here, and an AK90+ if your mate pays for one key, and sends me his EWS, I can code it no problem. Edited December 10, 2017 by Gabe79 Added transponder search query. Quote Share this post Link to post Share on other sites
Mad_Max 231 Report post Posted December 10, 2017 16 minutes ago, Gabe79 said: Note the little black thing next to the key, and the green electronics board. That's the transponder. You can buy those on ebay for a few bucks each, no fuss. You then need someone with an AK90+ to code it. You take out the EWS from the car, read it, code transponder to it. EDIT: Search ebay for "chip:PCF7935" to show just the transponder for that key above. EDIT2: I have keys here, and an AK90+ if your mate pays for one key, and sends me his EWS, I can code it no problem. Not sure if it's an aftermarket key or not, that little black thing is definitely not inside his key. Cool, thanks heaps man, how much are you looking at for the key? I will put it to him, I can remove his EWS module and get it up to you easy. Quote Share this post Link to post Share on other sites
BM WORLD 1283 Report post Posted December 10, 2017 express keys , send them the ews box Quote Share this post Link to post Share on other sites
Gabe79 410 Report post Posted December 10, 2017 9 hours ago, Mad_Max said: Not sure if it's an aftermarket key or not, that little black thing is definitely not inside his key. Cool, thanks heaps man, how much are you looking at for the key? I will put it to him, I can remove his EWS module and get it up to you easy. Can you send me some detailed, up close pictures of the key? The key costs what it costs on that link above, $18ish. Round up to $20. Actually coding transponder to EWS takes half an hour or so, send self-addressed return envelope and I can post back same, or next day. Quote Share this post Link to post Share on other sites
Mad_Max 231 Report post Posted December 10, 2017 4 hours ago, BM WORLD said: express keys , send them the ews box Thanks Brent, will keep them in mind for future issues. 3 hours ago, Gabe79 said: Can you send me some detailed, up close pictures of the key? I will get some and send them through as soon as possible, will probably be tomorrow. And I'll pm you to grab your details as well so we can get it up to you asap. Quote Share this post Link to post Share on other sites
HELLBM 1557 Report post Posted December 11, 2017 Send us your DME and we will do an ews delete on it. Plug and play $150 bimmersport price. Quote Share this post Link to post Share on other sites
