|
|
|
Post Reply |
|
Thread Tools | Search this Thread |
11-30-2016, 09:15 PM | #1 |
Second Lieutenant
123
Rep 258
Posts |
z4 key fob: rooftop activation distance and other functions
i perused through several pages but did not find what i was looking for. in this youtube video, there are a lot of functions just from the fob alone and the person operating the remote appears to be at least 10 feet away.
my key fob only works in the most simplest of ways and i have to stand no more than a foot away and must hold the buttons. is my key fob a defect or an M sport package amenity? thanks in advance. |
11-30-2016, 09:39 PM | #2 |
Captain
213
Rep 887
Posts |
Thats an after market version, Smart Top.
So a few things. The distance for oem key fob to open/close top/ windows is 1 meter away from the car, but I hear others have longer distance. Like yours, mine only works when I'm close to the car. I was thinking maybe confront access maybe limiting the distance some how..idk. For the mirror you can have this coded in w/o Smart top. I have mine coded so I hold the lock button for 3 seconds and the mirrors will fold in. Off topic a coder can give you other functions as well. I had my navigation warning turned off on start up, and European style hazards and emergency braking tail lights, and DVD in motion added. Euro Hazards flash twice and the pause, as opposed to flat /pause. Emergency braking lights will have your brakes flash in bursts under hard braking.
__________________
GC LITES / BQ TUNE / MHD / FUEL IT BT ECA / WALBRO 525 LPFP / KW V3 / E9X M3 CONTROL ARMS / TURNER REAR CAMBER ARMS / RE BUSHINGS / H&R SWAYS / LUXON STRUTBAR / VRSF 7.5" FMIC / ER CP / TIAL BOV / VTT IN/OUTLETS / AFE PRO5R INTAKE / AR C.L. DP / BMS OCC / RB PVC / CF LIP + SIDE + SPOILER + DIFFUSER / IND REFLECTORS / BLK GRILLS / STUBBY / PB BBK / Forgestar F14 F: 19x9 et35 R: 19x10 et38/ Michelin PSS F: 245/35/19 R: 275/30/19
|
Appreciate
1
cruisingdownthestreet123.00 |
11-30-2016, 09:41 PM | #3 |
Captain
168
Rep 906
Posts
Drives: 2008 535xi / 2011 Z4 35Is
Join Date: Jan 2011
Location: Indiana
|
I didn't watch the video. But I saw the title.
The Smart Top is something you can buy from a third party. Not BMW. It adds extra functionality. Edit... Ha! Just saw the previous post. Comfort access does provide the functionality but you do have to be in very close proximity. That is just how the CA antennas work. |
Appreciate
1
cruisingdownthestreet123.00 |
11-30-2016, 09:44 PM | #4 |
Captain
213
Rep 887
Posts |
hehe, btw I sent you a message of what can be done with coding...
__________________
GC LITES / BQ TUNE / MHD / FUEL IT BT ECA / WALBRO 525 LPFP / KW V3 / E9X M3 CONTROL ARMS / TURNER REAR CAMBER ARMS / RE BUSHINGS / H&R SWAYS / LUXON STRUTBAR / VRSF 7.5" FMIC / ER CP / TIAL BOV / VTT IN/OUTLETS / AFE PRO5R INTAKE / AR C.L. DP / BMS OCC / RB PVC / CF LIP + SIDE + SPOILER + DIFFUSER / IND REFLECTORS / BLK GRILLS / STUBBY / PB BBK / Forgestar F14 F: 19x9 et35 R: 19x10 et38/ Michelin PSS F: 245/35/19 R: 275/30/19
|
Appreciate
1
cruisingdownthestreet123.00 |
11-30-2016, 10:29 PM | #5 |
Captain
168
Rep 906
Posts
Drives: 2008 535xi / 2011 Z4 35Is
Join Date: Jan 2011
Location: Indiana
|
|
Appreciate
1
cruisingdownthestreet123.00 |
12-01-2016, 12:19 PM | #6 |
35is driver
16
Rep 60
Posts |
I have comfort access and can lock/unlock the doors from at least 10 meters/30 feet away, but have to be within a meter/3 feet to operate the roof. My guess would be that because there are numerous pinch points in the mechanism, for safety they didn't want it to be operable without being very close by to observe and stop the operation in case someone had their hands in the mechanism.
As to how they detect the distance, I would guess a ping-and-response between the car and the fob with the time being measured to determine distance. |
Appreciate
1
cruisingdownthestreet123.00 |
12-01-2016, 12:28 PM | #7 | |
Captain
168
Rep 906
Posts
Drives: 2008 535xi / 2011 Z4 35Is
Join Date: Jan 2011
Location: Indiana
|
Quote:
The doors and windows work via an RF radio signal the same as any car remote control allowing it to operate from a distance. The top opening and closing, as you say is more dangerous, so it requires the operator to be very nearby. The close proximity is determined via the Comfort Access antennas located in multiple locations of the car. Now... if you tell me you do not have Comfort Access then I need to rethink my comments on this. Or... you do have Comfort Access and do not know it. edit: good grief. Reading these threads on a mobile is killing my reading comprehension. I see you do in fact have Comfort Access. That is why it works when you stand close. Jim |
|
Appreciate
1
cruisingdownthestreet123.00 |
12-04-2016, 02:44 PM | #8 |
Private First Class
22
Rep 190
Posts |
Interesting topic. I had my car coded so my key fob could open the roof (closing it is not possible since I do not have comfort access). I can now open my top from the same distance as I can unlock my door, this can EASILY be 30 feet away.
|
Appreciate
0
|
12-04-2016, 03:38 PM | #9 |
Captain
168
Rep 906
Posts
Drives: 2008 535xi / 2011 Z4 35Is
Join Date: Jan 2011
Location: Indiana
|
Sounds like the same experience with coding for windows and sunroof on my 535.
I could close the sunroof from a distance however. I have been in between old and new computers. I should be able to get back to coding soon and see what can be done with the Z4. |
Appreciate
0
|
Post Reply |
Bookmarks |
|
|