Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > BMW SAV Forums > X5 (E53) Forum
Fluid Motor Union
User Name
Password
Member List Premier Membership Search Today's Posts Mark Forums Read

Xoutpost server transfer and maintenance is occurring....
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management


Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 01-09-2015, 06:40 PM
Member
 
Join Date: Aug 2014
Location: BC Canada
Posts: 9
Chad800xt is on a distinguished road
Strange key/central locking issue

Hey guys and gals, I have an issue with my 03 e53 that has me scratching my head. A little history, bought the x used and only got the 1 key and at some point the drivers door lock cylinder has bee replaced with a blank, thus keyless entry is the only option. Ok, so a month back the wife calls and says she's stuck at work the x won't open, key is doing nothing. I head over and sure enough nothing... I get in through the pass door using an air bag and a flex tool to hit the button and pull the handle twice. The alarm goes off but stops when the key is inserted and started. Drive the x home and start investigating, diamond key buttons do nothing, central locking button does nothing, everything else works as it should (dome lights, wipers, rear hatch button,seat functions) I decide to disconnect the batt for 10 min and reconnect. Magically the central lock system is working as it should! But the key buttons still do nothing. I follow the key reprogram procedure I found on this forum and everything is back to normal. don't know what, how or why but it's all good. Now, fast forward to yesterday... Exact same thing! Same call from the wife x5 parked in the same spot at her work and same procedure is required for me to fix (apparently temporarily). Any of u brilliant bmw experts have any advice? These parts get expensive fast and frankly I'm getting pretty tired of spending money on this ride.

Thanks in advance, Chad.
Reply With Quote

Sponsored Links

  #2  
Old 01-09-2015, 06:56 PM
upallnight's Avatar
Member
 
Join Date: Aug 2012
Location: Cook County
Posts: 7,280
upallnight is on a distinguished road
Did I miss something in your original post??? What did you replace??? I only read where you disconnected the battery for 10 minutes and everything work again.

Order a spare key for your X or order a new door cylinder for the driver side door and replace the blank.
__________________
2006 Infiniti G35
2001 BMW 3.0I E53 X5 Build date 08/2000 SOLD
Lotus Europa 1970 Destroyed by fire
Lotus Europa 1970 S2 Renault Powered
Lotus Type 52 1970 Twincam Webers Powered
PORSCHE 911 Targa 1982 The Garage Queen
Audi Avant donated to Kars for Kids
BMW 525IT Sold
Audi 4000CS Quattro Sold
Jensen Healey Lotus Powered Sold
Opel 1900 Sold
Triumph Spitfire 1971 Sold
Triumph Spitfire 1968 Sold
Plymouth "Cuda" 340 Six pack SOLD
Reply With Quote
  #3  
Old 01-09-2015, 07:22 PM
Member
 
Join Date: Aug 2014
Location: BC Canada
Posts: 9
Chad800xt is on a distinguished road
Quote:
Originally Posted by upallnight View Post
Did I miss something in your original post??? What did you replace??? I only read where you disconnected the battery for 10 minutes and everything work again.

Order a spare key for your X or order a new door cylinder for the driver side door and replace the blank.
I Didn't replace any part of the locking/keyless entry system, the battery disconnect "reset" worked. I have ordered a new lock cylinder and key to gain an entry point if this continues to happen but that is just skirting around the problem. My first thought is the gm3 module but disconnecting the battery shouldn't have any impact if it is a module problem... I don't think

In the 6 month of ownership I have replaced,
-Transmission/ torque converter
-ccv valve and piping
-valley pan gasket
-water pump and crossover pipe gaskets
-upper timing cover gaskets
-valve cover gaskets
-rear airbags
-lower control arms
-lower oil pan gasket
-timing chain tensioner
-power seat module
-pre cat o2 sensors
-belt tensioner and idler pulleys
I can do all the work myself in my own shop so labour is free but the x5 is becoming hard to love....
Reply With Quote
  #4  
Old 01-09-2015, 08:11 PM
lhordmclain's Avatar
Member
 
Join Date: May 2013
Location: Chicago
Posts: 377
lhordmclain is on a distinguished road
Using the key button and/or central locking button

If the lock/unlock issue happening on a single door - maybe the door actuator.

If the lock/unlock issue happening ONLY on the rear doors - maybe the General Module / Body Module.

Or other that I am not yet familiar with..........................


It is very strange that you key is getting out of synch. The only time our key gets out of synch is when we don't use it for 8-12 months (This happened to us once, never again! I see to it that me+wifey always swap the designate keys every week on our vehicles)
__________________
Build Date: 06/2004

2004 E53 3.0L 6 Cyl
Engine Code: M54
AT: 5L40-E/GM5 (A5S 390R)
http://s101.photobucket.com/user/lho...in/library/E53

2004 E46 M3 Coupe 3.2L 6 Cyl
Engine Code: S54
MT: S6S 420G - 6 speed
http://s101.photobucket.com/user/lho...in/library/E46
----------------------------------
Build Date: 10/2008
2009 E90N 328xi Sedan 6 Cyl
Engine code: N51
AT: GA6L45R/GM6
http://s101.photobucket.com/user/lho...in/library/E90
Reply With Quote
  #5  
Old 01-09-2015, 08:31 PM
crystalworks's Avatar
Member
 
Join Date: Jun 2014
Location: SA, TX
Posts: 5,987
crystalworks is on a distinguished road
It sounds to me like the battery in the diamond key is on its way out. After you did the relearn/reprogram procedure it had just enough juice to last for a little bit and then couldn't transmit anymore again.

Just my guess though based on experience with e46's. My X came with a key that had a dead battery so I just replaced the battery... relearn procedure... and everything has been good since. Also recommend buying a second key. Our dealer charged $183 for a new one.
__________________
2005 X5 4.4i Build 04/05 Maintenance/Build Log
Nav, Pano, Sport (Purchased 06/14 w/ 109,000 miles) (Sold 8/15 w/121,000 miles)


2006 X5 4.8is Build 11/05 Maintenance/Build Log
Nav, DSP, Pano, Running Boards, OEM Tow Hitch, Cold Weather Pckg (Purchased 08/15 w/ 90,500 miles)

2010 X5 35d Build 02/10
Nav, HiFi, 6 DVD, Sports Pckg, Cold Weather Pckg, HUD, CAS, Running Boards, Leather Dash, PDC, Pano (Purchased 03/17 w/ 136,120 miles)
Reply With Quote
  #6  
Old 01-10-2015, 03:33 AM
Member
 
Join Date: Aug 2014
Location: BC Canada
Posts: 9
Chad800xt is on a distinguished road
I'm going to visit the stealer and look into getting a second key for sure. Do the keys typically need to be re learned after a battery disconnect ? Could the central locking system becoming inactive be a result of the alarm going off? Some sort of security thing?
Reply With Quote
  #7  
Old 01-10-2015, 04:04 AM
Qsilver7's Avatar
Member
 
Join Date: Oct 2012
Location: Indiana, USA
Posts: 3,489
Qsilver7 is on a distinguished road
The first thing I'd do is order a door lock cylinder for the driver's door based on your X5's VIN so that you have a manual way into the vehicle.

If you only have one key...then yes get another one, too. The "coded" cylinder doesn't cost that much and will come already keyed to work with your X. I'm not sure why anyone would replace the cylinder with a "blank" other than to fix/mask a problem...which may be part and parcel to the infrequent remote unlock issue you've now experienced twice.

Also check locally for a place that can check the radio frequency or operation of your key to see if the battery voltage is dropping. One of the things I loved about the old style key is its red LED status light which not only indicated if a signal was sent but also if the battery was dying.

Although the image below is of the old style key and it has an easy replaceable battery you can pick up anywhere...the battery voltage info applies to the new style key...so if you can find an auto store that can check your key's battery...if the voltage is dropping below 2.2 volts...then that could be the issue:

__________________
Become a BMW CCA member! Click HERE to join and feel free to use my BMW CCA member #191509 as a referral.
  • 2013 f06 650ix GC (1/13 build date) Black Sapphire exterior/Schwarz (black) Nappa Leather interior
  • 2014 f15 X5 50i (11/13 build date) Space Gray exterior/Mocha Nappa Leather interior
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On





All times are GMT -4. The time now is 05:33 PM.
vBulletin, Copyright 2022, Jelsoft Enterprises Ltd. SEO by vBSEO 3.6.0
2017 Xoutpost.com. All rights reserved. Xoutpost.com is a private enthusiast site not associated with BMW AG.
The BMW name, marks, M stripe logo, and Roundel logo as well as X3, X5 and X6 designations used in the pages of this Web Site are the property of BMW AG.
This web site is not sponsored or affiliated in any way with BMW AG or any of its subsidiaries.