Remote Starter

[RFredeking]

I was wondering if anyone knew if you could put a remote start on a BMW because of the whole thing with the code between the car and the key. Does anyone have a remote start on their car? And if so what remote start do you recommend? Thanks

[007ben]

I am pretty sure there are kits to bypass the key/chip thing. so you could do a remote start...

[jllphan]

Yes you can. I will have one by the end of the month. My installer said it will take a few more relays than normal, but not a big deal. i am also going to have him add the module so that my alarm remote will open my garage door, roll the windows up, close the sunroof, and activate my seat warmers. Also, when the remote start is activated, my angel eyes will also come on. Not bragging, just letting ya know all of the kick ass options that are available these days.

[sean]

i have a compustar alarm on my car. it is the two way remote with remote start that works on stick cars. it is great, pages with when my car gets door dinged, broken into, trunk opens, etc. i also got the relays so i can remote open and close the windows/sunroof to cool the car off. it only remote starts if you first put the car in neutral, then let off the foot brake, and then pull the e-brake, its a nice safety feature so your car won't jump or move when it starts.
Anyways back to the original question, i found a site once that shows how to bypass the key code, usng one of the spare keys, that makes it so the remote start will work for the alarm, but still be needed to start otherwise. in short it can be done, ill look for the site again and post a link if i find it.

[RFredeking]

Thanks for all ur replys

[Dirty_Tool]

what most installers do is use a spare key and add another ring aerial (the black plastic ring which goes around the ign lock tumbler which reads the key transponder data) under the knee bolster panel which basically disables the EWS (driveaway protection)system. It works fine but keep in mind that whatever alarm you install is most likely not going to have as sophistcated anti driveaway protection as the rolling code transponder chip system that BMW uses. Just something to think about. That said I installed a remote start system in my e32 series and I love it, its great especially on cold mornings so I dont blame you for wanting one. Theyre great.

[007ben]

I'm pretty sure the key's chip doens't roll codes as it is a fairly passive system (RFID). the radio energy put off by the ariale exites the chip enough to send of its ID number to the car and the car goes hey i know you and says lets go. Unless the key has a power source of its own which unless its also a fob to lock and unlock the car it doen't it woiuldn't have the ablity to roll codes...

[Dirty_Tool]

Its a rolling code system, trust me im positive.

[mrogers]

I'm not sure about the E36, but I know for a fact my E39 uses a rolling-code system, so I bet most other BMWs do too.

[sean]

listen to dirty_tool, it is a rolling code system

[Dirty_Tool]

Here let me expand,
first of all the key has a capacitor in it which is charged by the ring aerial upon inserting the key and turning it to the acc position, thats how it gets its power supply. When the key is on the transmit/receive module sends a 125khz AM signal to the ring aerial which powers the transponder chip in the key. One powered up the transponder chip sends the key code to the transmit/receive (T/R) module. Then the T/R module converts the AM signal to a digital signal and sends it to the EWS2 module. (note that EWS1 system never made it to the US EWS2 was introduced here in 95) EWS 2 checks the key code and verifies the key is enabled. If the key is valid and enabled the the EWS2 module sends a digital password to the T/R module which then converts it to a AM (analog) signal and sends it to the transponder via the ring aerial. If the transponder accepts the password as correct then it releases the changing code to the T/R module which converts it from analog to digital and sends it back to the EWS2 module. If the changing code received by the T/R module is correct and all of the systems other parameters have been met then the starter motor is released, while at the same time the EWS2 module sends the ISN(individual serial #) to the DME (engine control module) If the ISN # is correct the the DME releases the ignition and injection signals so that the vehicle ill run. During the process of sending the ISN # to the DME the EWS2 module also sends a new changing code to the transponder via the ring aerial. Note that all this takes place in under 750 milliseconds. Also note that eventually the T/R module was deleted and its features were incorporated into the EWS2 module. Any questions?

[TeeUp]

thanks!

[Graphic Designer]

even with thoe code, then can be bypassed.
so yeah they can be installed.