Go Back  5Series.net - Forums > E60 5 Series (2004 - 2010) > E61 Touring Discussion
Reload this Page >

Remote keys only work with tailgate open after disconnecting/reconnecting battery

E61 Touring Discussion The touring is also known as the wagon version of the 5 series.

Remote keys only work with tailgate open after disconnecting/reconnecting battery

Old 03-17-2019, 06:13 PM
  #1  
New Members
Thread Starter
 
Join Date: Mar 2019
Location: Detroit
Posts: 7
My Ride: 2010 E61
Default Remote keys only work with tailgate open after disconnecting/reconnecting battery

Hello all. I did a bunch of googling on this issue to no avail. Sorry for the long story but I don't know what may or may not be relevant.


I recently purchased a 2010 E61 (N54) w/ ~70K miles. I was getting a 'low battery' message when using the radio in the car for a couple of minutes after turning the car off. Auto parts store tested the battery and it read 550 CCA. Car has a BMW battery that's just under 2 years old rated at 850 CCA, AGM I believe. I took it to the dealer, hoping the battery would be the problem and it would still be under warranty. They diagnosed the problem as a faulty IBS and said everything else tested OK.


This weekend I disconnected the negative terminal so I could take a look at the cable/IBS to see what I'd be dealing with and make sure I order the correct parts. Since reconnecting the battery, both remote keys function intermittently. It seems the only time I have been able to get them to work is if the tailgate is in the open position and locking/unlocking work fine. As soon as I closed the tailgate all remote key functions no longer worked. However as I said it is intermittent and I think when I last tried I couldn't get the remote keys to work at all irrespective of the tailgate position.


Current status: I'm waiting on parts to do the IBS replacement and using the physical key in the door. I am getting a "increased battery discharge" message that I was not getting before I started tinkering. I disconnected the IBS data cable for the time being to see if it affected anything and thus far it has not.


Any ideas what could be causing my remote keys to no longer work reliably?


Thanks!
esixtyone is offline  
Old 03-17-2019, 08:28 PM
  #2  
New Members
 
Join Date: Aug 2018
Location: Abbotsford, BC
Posts: 99
My Ride: 535xi wagon 6MT
Model Year: 2009
Engine: N54
Default

I might argue itís possibly a coincidence and some of the wires going to your tailgate are just happening to break right now. Super common and could explain why different results with the liftgate up or down.
kd7iwp is offline  
Old 03-18-2019, 09:49 AM
  #3  
New Members
Thread Starter
 
Join Date: Mar 2019
Location: Detroit
Posts: 7
My Ride: 2010 E61
Default

Looks like I didn't search hard enough because as you've said this issue is very common. It is quite a coincidence that it happened at the very moment I disconnected the battery, but that appears likely. I will check my wiring and report back. I did notice this morning my defroster does not seem to be working either. Thanks for the response kd7iwp!
esixtyone is offline  
Old 05-06-2019, 06:47 AM
  #4  
New Members
Thread Starter
 
Join Date: Mar 2019
Location: Detroit
Posts: 7
My Ride: 2010 E61
Default

Just wanted to close the loop on this thread -- the problem was the tailgate wiring. Right hinge, left bracket, there was one severed wire and a few were chewed up a bit. The 14 AWG wire was hanging on by a thread. Spliced in some new wire and used solder butt connectors and everything's working great since, knock on wood.
esixtyone is offline  
Old 05-06-2019, 07:35 AM
  #5  
New Members
 
Join Date: Aug 2018
Location: Abbotsford, BC
Posts: 99
My Ride: 535xi wagon 6MT
Model Year: 2009
Engine: N54
Default

So glad to hear you found the problem! Iím tempted to order the Sencom rebuild kit but none of my wires are currently broken and I have enough other projects to take on at the moment.
kd7iwp is offline  
Old Yesterday, 07:20 AM
  #6  
New Members
Thread Starter
 
Join Date: Mar 2019
Location: Detroit
Posts: 7
My Ride: 2010 E61
Default

Do you know the best way to order the Sencom kit? I read something about import duties and customs which sounds troublesome.

Although my car's good at the moment, I just peeked at the tailgate wires again with the flashlight and I think I saw a broken wire I hadn't noticed before and the wire wrap/tape coming off in some areas. I think it's just a matter of time before it all needs to be redone.

Brian
esixtyone is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
resunoiz
E60 Discussion
6
03-12-2017 11:41 PM
wokingBigBoy
E60 Parts, Accessories and Mods
1
04-29-2013 12:35 PM
xiTouring
E61 Touring Discussion
7
03-20-2011 11:52 AM
525d_e61
E61 Touring Discussion
2
04-15-2009 11:58 PM
525d_e61
E60 Discussion
4
04-15-2009 02:39 AM


Thread Tools
Search this Thread
Quick Reply: Remote keys only work with tailgate open after disconnecting/reconnecting battery


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.