F31 Tailgate problem

Lambertlambert2003 · 05-08-2018, 04:41 PM

I’m new here and not sure which section this goes in, can a mod move it to the right section if it doesn’t go here.

Neither the boot or the window will open on my tailgate, it doesn’t even make a noise when I press either button on the back or the one in the car. If I climb through the backseats and pull the manual release cable then the boot will open, and the softclose works when pressing either button and I can here the motor pulling it at the final bit and it locks but won’t open again. There is a constant error on the dash that the boot is open when it is closed. I have read the error codes with Carly and it is showing

804846
ZV-Driving rear window (MERHS): open circuit or short circuit to battery voltage.
I’ve looked for the error on google and can’t find any results.

My car is a F31 2013 (Ex-police)
Thanks in advance.

Sea-Tac · 05-08-2018, 10:18 PM

Sounds like your valet switch is set to lock. In your glove box throw the switch to the unlocked position. Let me know if that works and Welcome!

Lambertlambert2003 · 05-09-2018, 12:10 AM

I had a look and feel around the glovebox and can’t find any switch? Do you think it would come up with that error if it was in valet mode?

Lambertlambert2003 · 05-09-2018, 12:17 AM

I had a look on here and it looks like my car doesn’t have a valet switch. It has a silver blanking plate like the one on this thread
http://f30.bimmerpost.com/forums/sho...d.php?t=788584

Sea-Tac · 05-09-2018, 12:19 AM

Quote:

Originally Posted by Lambertlambert2003

I had a look and feel around the glovebox and can't find any switch? Do you think it would come up with that error if it was in valet mode?

I can find that code anywhere. Did you scan through the OBD port? Do you have a valet key? If so try locking and unlocking the car. The only override I know is the valet switch to lock out the rear hatch.

Lambertlambert2003 · 05-09-2018, 12:26 AM

Ye, I used the Carly app to scan and clear the dtc but as soon as I start the car it says boot open on the dash and then that dtc comes back? I tried locking and unlocking with the key but that did nothing.

Sea-Tac · 05-09-2018, 12:29 AM

Quote:

Originally Posted by Lambertlambert2003

I had a look on here and it looks like my car doesnÂ’t have a valet switch. It has a silver blanking plate like the one on this thread
http://f30.bimmerpost.com/forums/sho...d.php?t=788584

Do you have a fuse diagram for your car. In my 328iX I think it's 57. But you'll need to verify. Find that fuse and remove it. Check if it's good or needs replacement.

Sea-Tac · 05-09-2018, 12:31 AM

Quote:

Originally Posted by Sea-Tac

Quote:

Originally Posted by Lambertlambert2003

I had a look on here and it looks like my car doesnÂ’t have a valet switch. It has a silver blanking plate like the one on this thread
http://f30.bimmerpost.com/forums/sho...d.php?t=788584

Do you have a fuse diagram for your car. In my 328iX I think it's 57. But you'll need to verify. Find that fuse and remove it. Check if it's good or needs replacement.

Be certain that the fuse is tight in place when you replace it.

Sea-Tac · 05-09-2018, 12:34 AM

Quote:

Originally Posted by Lambertlambert2003

Ye, I used the Carly app to scan and clear the dtc but as soon as I start the car it says boot open on the dash and then that dtc comes back? I tried locking and unlocking with the key but that did nothing.

Check you center counsel. Does it have a valet unlock button. Similar problem noted in another thread. You will have to link to

https://f30.bimmerpost.com/forums/sh....php?t=1436741

Lambertlambert2003 · 05-09-2018, 12:35 AM

Ye, it said there was 3 fuses for the tailgate but I decided to check every fuse under the bonnet and in the boot while I was at it

Lambertlambert2003 · 05-09-2018, 12:37 AM

Quote:

Originally Posted by Sea-Tac

Check you center counsel. Does it have a valet unlock button.

There’s no button in the Center. I think it should be in the glovebox. It’s an ex police car so I don’t think they needed the valet mode.

Sea-Tac · 05-09-2018, 12:47 AM

Quote:

Originally Posted by Lambertlambert2003

Quote:

Originally Posted by Sea-Tac

Check you center counsel. Does it have a valet unlock button.

There's no button in the Center. I think it should be in the glovebox. It's an ex police car so I don't think they needed the valet mode.

Alright. If you have verified all the fuses are in tact and are properly seated the last thing I would do is open the hatch from the inside and when opened 1. press the close button for a slow count of 10. If it closes it should the open. 2. If not get a good fast drying solvent like brake cleaner and clean the latch in the in the tailgate. Other than that since it is a special police version it may have to go to the service center. I'll be reading this site for another 15 mins

Lambertlambert2003 · 05-09-2018, 12:52 AM

Once it opens it soft closes fine. I just found this thread which seems like it’s the same problem as mine.
http://f30.bimmerpost.com/forums/sho...1328653&page=2
Seems like that dtc code is referring to the same area aswell. I’ll have to try and find a guide on how to get to the latch on the window. Thanks for your help.

Sea-Tac · 05-09-2018, 12:54 AM

Quote:

Originally Posted by Lambertlambert2003

Quote:

Originally Posted by Sea-Tac

Check you center counsel. Does it have a valet unlock button.

There’s no button in the Center. I think it should be in the glovebox. It’s an ex police car so I don’t think they needed the valet mode.

Ok one other thing with the actual key. Insert the key into the drivers door lock. Lock the door then unlock it. Hold the key in the unlock position for a slow count of 10. Does this unlock your trunk.

Sea-Tac · 05-09-2018, 12:55 AM

Quote:

Originally Posted by Lambertlambert2003

Once it opens it soft closes fine. I just found this thread which seems like itÂ’s the same problem as mine.
http://f30.bimmerpost.com/forums/sho...653&page=2
Seems like that dtc code is referring to the same area aswell. IÂ’ll have to try and find a guide on how to get to the latch on the window. Thanks for your help.

Good luck keep me posted. Good night.

Lambertlambert2003 · 05-09-2018, 12:55 AM

I’ll go give it a go now

Sea-Tac · 05-09-2018, 12:55 AM

Quote:

Originally Posted by Lambertlambert2003

I’ll go give it a go now

Ok

Lambertlambert2003 · 05-09-2018, 12:58 AM

Quote:

Originally Posted by Sea-Tac

Ok

No, did nothing

Sea-Tac · 05-09-2018, 01:08 AM

Quote:

Originally Posted by Lambertlambert2003

Quote:

Originally Posted by Sea-Tac

Ok

No, did nothing

Ok. Check with the others in the threads you found they will be willing to help. Sorry I couldn't help further. Keep me posted. Do try the cleaning of the latch too. Good luck.

Lambertlambert2003 · 05-10-2018, 01:16 PM

Quote:

Originally Posted by Sea-Tac

Ok. Check with the others in the threads you found they will be willing to help. Sorry I couldn't help further. Keep me posted. Do try the cleaning of the latch too. Good luck.

Found the problem, there was a cable unplugged from the tailgate window latch which disabled the window and the boot opening.

Thanks for the help.

kevinwcm · 09-27-2019, 05:29 AM

Is it possible for you to show which part of the cable is loose?
I have the same problem, but mine is F30

No valet switch as well.
But all button and boot switch does not work. Only opens when I activated it from obd2 via workshop's computer. I'm dumbfounded.

Quote:

Originally Posted by Lambertlambert2003

Found the problem, there was a cable unplugged from the tailgate window latch which disabled the window and the boot opening.

Thanks for the help.

khaled hamdy · 02-13-2023, 06:30 AM

Lambertlambert2003

can you please share pic for which latch, and cable solve your problem
i have the same issue with my car.

05-08-2018, 04:41 PM	#1
Lambertlambert2003 New Member 4 Rep 14 Posts Drives: E91 -2011 Join Date: May 2018 Location: UK iTrader: (0)	F31 Tailgate problem I’m new here and not sure which section this goes in, can a mod move it to the right section if it doesn’t go here. Neither the boot or the window will open on my tailgate, it doesn’t even make a noise when I press either button on the back or the one in the car. If I climb through the backseats and pull the manual release cable then the boot will open, and the softclose works when pressing either button and I can here the motor pulling it at the final bit and it locks but won’t open again. There is a constant error on the dash that the boot is open when it is closed. I have read the error codes with Carly and it is showing 804846 ZV-Driving rear window (MERHS): open circuit or short circuit to battery voltage. I’ve looked for the error on google and can’t find any results. My car is a F31 2013 (Ex-police) Thanks in advance.
	Appreciate 1 Sea-Tac1455.00 Tweet Quote

05-08-2018, 10:18 PM	#2
Sea-Tac Major 1455 Rep 1,487 Posts Drives: 2108 X3 xDrive30i Join Date: Apr 2018 Location: Bellevue, Wa iTrader: (0) Garage List 2018 X3 xDrive30i [0.00] 2016 328i xDrive [0.00]	Sounds like your valet switch is set to lock. In your glove box throw the switch to the unlocked position. Let me know if that works and Welcome!
	Appreciate 0 Quote

05-09-2018, 12:10 AM	#3
Lambertlambert2003 New Member 4 Rep 14 Posts Drives: E91 -2011 Join Date: May 2018 Location: UK iTrader: (0)	I had a look and feel around the glovebox and can’t find any switch? Do you think it would come up with that error if it was in valet mode?
	Appreciate 0 Quote

05-09-2018, 12:17 AM	#4
Lambertlambert2003 New Member 4 Rep 14 Posts Drives: E91 -2011 Join Date: May 2018 Location: UK iTrader: (0)	I had a look on here and it looks like my car doesn’t have a valet switch. It has a silver blanking plate like the one on this thread http://f30.bimmerpost.com/forums/sho...d.php?t=788584
	Appreciate 0 Quote

05-09-2018, 12:26 AM	#6
Lambertlambert2003 New Member 4 Rep 14 Posts Drives: E91 -2011 Join Date: May 2018 Location: UK iTrader: (0)	Ye, I used the Carly app to scan and clear the dtc but as soon as I start the car it says boot open on the dash and then that dtc comes back? I tried locking and unlocking with the key but that did nothing.
	Appreciate 0 Quote

05-09-2018, 12:35 AM	#10
Lambertlambert2003 New Member 4 Rep 14 Posts Drives: E91 -2011 Join Date: May 2018 Location: UK iTrader: (0)	Ye, it said there was 3 fuses for the tailgate but I decided to check every fuse under the bonnet and in the boot while I was at it
	Appreciate 0 Quote

05-09-2018, 12:52 AM	#13
Lambertlambert2003 New Member 4 Rep 14 Posts Drives: E91 -2011 Join Date: May 2018 Location: UK iTrader: (0)	Once it opens it soft closes fine. I just found this thread which seems like it’s the same problem as mine. http://f30.bimmerpost.com/forums/sho...1328653&page=2 Seems like that dtc code is referring to the same area aswell. I’ll have to try and find a guide on how to get to the latch on the window. Thanks for your help.
	Appreciate 0 Quote

05-09-2018, 12:55 AM	#16
Lambertlambert2003 New Member 4 Rep 14 Posts Drives: E91 -2011 Join Date: May 2018 Location: UK iTrader: (0)	I’ll go give it a go now
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02-13-2023, 06:30 AM	#22
khaled hamdy Registered 0 Rep 2 Posts Drives: bmw f30 316i Join Date: Feb 2023 Location: saudi arabia iTrader: (0)	bmw f30 316i model 2013 Lambertlambert2003 can you please share pic for which latch, and cable solve your problem i have the same issue with my car.
	Appreciate 0 Quote