E91 Tailgate window opening problem

Triton · 10-19-2011, 02:15 AM

Proud new owner of 2006 320d M Sport. However, have just discovered that the rear tailgate window won't open.
Any ideas about where to start the diagnosis would be much appreciated.

W55ksy · 01-21-2012, 03:14 PM

Did you get this resolved in the end? Have same problem.

330i07 · 01-22-2012, 02:50 PM

Get your codes read, anything electrical will throw it up..

blackibanez · 04-17-2012, 12:49 AM

Hi,

I have recently moved from a Mazda3 to a 2008 E91 318i.

I have a similar issue I believe.

The rear window opens when I unlock the car the first time of the day, or if there
is a long gap between locking and unlocking.

Once it's closed it's not possible to open it manually even if the car is unlocked.

Any ideas why this might be happening ?

Cheers,
--

doughboy · 04-17-2012, 09:53 AM

If the main tailgate isn't shut properly (or the car thinks its not shut properly) then it blocks the opening of the rear window.

Check if the rear boot courtesy lights are on, this is a giveaway that the main tailgate isn't shut 100%, sticky sensor or something.

Mine does it sometimes, always has, i just open and re-shut the main door and its ok.

Don't slam it as it bounces. As there is no outside 'handle', to keep your hands off the paintwork, just push it closed with your hand on the wiper pivot and firmly push down.

Give it a try.

W55ksy · 05-31-2015, 02:25 PM

Guys - just so you know, this turned out to be the little button under the tailgate window lifter.

Cheap to replace, easy to fix and been working fine now ever since.

jackstrath · 05-31-2015, 04:19 PM

Haha not bad 3 years later lol

bytejunkie · 06-01-2015, 02:44 AM

Quote:

Originally Posted by W55ksy

Guys - just so you know, this turned out to be the little button under the tailgate window lifter.

Cheap to replace, easy to fix and been working fine now ever since.

got part number or a guide? mine does the same. just remembered ive never been able to use it in the 2 years ive owned it.

mete · 04-07-2019, 07:18 AM

Here is a nice video on a possible cause of the tailglass not opening:

In brief: If you have deconnected the diversity antenna, u might have forget to connect the switch related with the tailglass opening.

quigger · 01-08-2020, 04:09 AM

The thread above was useful to me when I had a similar issue.

My issue was:
"e91 boot hatch UN locking issues"

but with clock and trip mileage resets too.

So I link to my thread in case it's useful to anyone else:
https://www.e90post.com/forums/showt...php?p=25644804
I included all threads I read.

10-19-2011, 02:15 AM	#1
Triton Registered 7 Rep 3 Posts Drives: 2006 E91 M sport Touring Join Date: Oct 2011 Location: Hertfordshire iTrader: (0)	E91 Tailgate window opening problem Proud new owner of 2006 320d M Sport. However, have just discovered that the rear tailgate window won't open. Any ideas about where to start the diagnosis would be much appreciated.
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01-21-2012, 03:14 PM	#2
W55ksy Registered 0 Rep 3 Posts Drives: 330d sport touring auto Join Date: Jan 2012 Location: Bromley iTrader: (0)	Did you get this resolved in the end? Have same problem.
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01-22-2012, 02:50 PM	#3
330i07 Enlisted Member 1 Rep 35 Posts Drives: 330i sport Join Date: Jan 2012 Location: Yorkshire iTrader: (0)	Get your codes read, anything electrical will throw it up..
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04-17-2012, 12:49 AM	#4
blackibanez Registered 0 Rep 1 Posts Drives: 2008 318i E91 Join Date: Apr 2012 Location: Berkshire iTrader: (0)	Hi, I have recently moved from a Mazda3 to a 2008 E91 318i. I have a similar issue I believe. The rear window opens when I unlock the car the first time of the day, or if there is a long gap between locking and unlocking. Once it's closed it's not possible to open it manually even if the car is unlocked. Any ideas why this might be happening ? Cheers, --
	Appreciate 0 Quote

04-17-2012, 09:53 AM	#5
doughboy Major General 1545 Rep 8,970 Posts Drives: 2018 M2 Comp 6MT Join Date: Jan 2009 Location: UK iTrader: (2)	If the main tailgate isn't shut properly (or the car thinks its not shut properly) then it blocks the opening of the rear window. Check if the rear boot courtesy lights are on, this is a giveaway that the main tailgate isn't shut 100%, sticky sensor or something. Mine does it sometimes, always has, i just open and re-shut the main door and its ok. Don't slam it as it bounces. As there is no outside 'handle', to keep your hands off the paintwork, just push it closed with your hand on the wiper pivot and firmly push down. Give it a try.
	Appreciate 0 Quote

05-31-2015, 02:25 PM	#6
W55ksy Registered 0 Rep 3 Posts Drives: 330d sport touring auto Join Date: Jan 2012 Location: Bromley iTrader: (0)	Guys - just so you know, this turned out to be the little button under the tailgate window lifter. Cheap to replace, easy to fix and been working fine now ever since.
	Appreciate 0 Quote

05-31-2015, 04:19 PM	#7
jackstrath Major 659 Rep 1,239 Posts Drives: 16' F31 340i & 03' Focus RS Join Date: Aug 2014 Location: Aberdeen iTrader: (0)	Haha not bad 3 years later lol
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04-07-2019, 07:18 AM	#9
mete Registered 0 Rep 3 Posts Drives: BMW e90 320d 2007 Join Date: Mar 2019 Location: Belgium iTrader: (0)	Here is a nice video on a possible cause of the tailglass not opening: In brief: If you have deconnected the diversity antenna, u might have forget to connect the switch related with the tailglass opening.
	Appreciate 0 Quote

01-08-2020, 04:09 AM	#10
quigger New Member 2 Rep 15 Posts Drives: F31 320d Sport Join Date: May 2013 Location: United Kingdom iTrader: (0)	The thread above was useful to me when I had a similar issue. My issue was: "e91 boot hatch UN locking issues" but with clock and trip mileage resets too. So I link to my thread in case it's useful to anyone else: https://www.e90post.com/forums/showt...php?p=25644804 I included all threads I read.
	Appreciate 0 Quote