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Cab Roof Opening

36584 Views 130 Replies 30 Participants Last post by  Andy_B
Has anyone been able to open their roof from outside the vehicle with the remote control ?
The handbook says you can , I couldnt in my A4 except with the key and I have been able to drop the roof in the A5 only with the detachable key from the remote .
Thanks
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No further with this really.

looks like the Advanced Key is the only way to remote open the roof in the UK
Ladoma - Voice Recognition isnt enabled by default on Cabs in the UK unless you make the VCDS change. Thats a definite fact. Once the change is made, voila..

Jace - I'm with you. I'm going to snoop round my VCDS settings on my cab (which has Adv Key) and see if I can work out where the "difference" to switch it on (or off) is located

Cheers

Andy
I may have found the VAG-COM/VCDS setting which enables roof open/close via remote:

Module 05 - Access/Start Authorization

Byte 02

xxxxxxxx? (bit 0)
0 = Roof Open via Remote Disabled
1 = Roof Open via Remote Enabled

xxxxxx?xx (bit 2)
0 = Roof Close via Remote Disabled
1 = Roof Close via Remote Enabled

...setting both of these bits to 1 should enable the feature according to my findings (unless it needs other codings in other modules).

My original bits for this byte were 00001111, the module doesn't accept anything other 0 in the last four bits but bits 1 and 3 are a mystery, at first I thought they would control roof/open close with physical key but this is not the case.

Would be grateful if you non-Advanced Key'ers would test this out and post your complete coding for module 05.
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Superb, thanks Warren. Will check it out first thing AM and let you know.

If it works you get my vote as the forums VAGCOM guru :thumbsup:

Cheers
4
Hi Warren

Tried your suggestion; however I think the advance key element creates a few more Bytes than I have, so was unable to adopt your suggestion. I had to cut short further invest because family turned up but thought I'd get these posted for a quick response.

Below are some pics of my MY10CAB (No advance key) Module 5.

Text Font Line Screenshot Technology
Text Font Line Technology Screenshot
Text Font Line Screenshot Technology
Text Font Line Screenshot Technology


Cheers
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Tried your suggestion; however I think the advance key element creates a few more Bytes than I have, so was unable to adopt your suggestion.
What did it do, reject the coding? My 05 module differs in part number to yours, so perhaps they use a different module for the advanced key and therefore this really does need different hardware:

Code:
Address 05: Acc/Start Auth. (J393)       Labels: 8K0-907-064-05.clb
   Part No SW: 8K0 907 064 CQ    HW: 8K0 907 064 CQ
   Component: BCM2 2.0      H04 0430  
   Revision: 00002001    
   Coding: 05130F
   Shop #: xxxxxx
   VCID: xxxxxx

   Part No SW: 8K0 905 852 D    HW: 8K0 905 852 D
   Component: J764 ELV MLB  H37 0042 

No fault code found.
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What did it do, reject the coding? My 05 module differs in part number to yours, so perhaps they use a different module for the advanced key and therefore this really does need different hardware:

Code:
Address 05: Acc/Start Auth. (J393)       Labels: 8K0-907-064-05.clb
   Part No SW: 8K0 907 064 CQ    HW: 8K0 907 064 CQ
   Component: BCM2 2.0      H04 0430  
   Revision: 00002001    
   Coding: 05130F
   Shop #: xxxxxx
   VCID: xxxxxx
 
   Part No SW: 8K0 905 852 D    HW: 8K0 905 852 D
   Component: J764 ELV MLB  H37 0042 
 
No fault code found.
Hi Warren, yes VAGCOM refused to accept the coding, both Bit 0 and 2, regardless whether they were amended seperately or combined. Give the different part No's for the module, I suspect your right - hardware needed. Thanks anyway for giving up your time on this.

Cheers
Hi Warren, yes VAGCOM refused to accept the coding, both Bit 0 and 2, regardless whether they were amended seperately or combined. Give the different part No's for the module, I suspect your right - hardware needed. Thanks anyway for giving up your time on this.
Damn! Well if anybody else wants to give it a try, please do and post the results but it looks like this is dead in the water :(

EDIT: This only works with advanced key up to 4 meters away so it isn't all that great plus the very fact it only works up to 4 meters means it must be using the advanced key RFID sensors to know the distance :(
Damn! Well if anybody else wants to give it a try, please do and post the results but it looks like this is dead in the water :(

EDIT: This only works with advanced key up to 4 meters away so it isn't all that great plus the very fact it only works up to 4 meters means it must be using the advanced key RFID sensors to know the distance :(
Warren / Mulski

Damn I thought you had it then. Is it worth checking the module part number for mine aswell (as have Adv Key) to see if it matches Warrens?

I'm assuming it will and therefore points to a hardware requirement as you say... :(

Andy
Warren / Mulski

Damn I thought you had it then. Is it worth checking the module part number for mine aswell (as have Adv Key) to see if it matches Warrens?

I'm assuming it will and therefore points to a hardware requirement as you say... :(

Andy
Yes, it wouldn't hurt to have some more data for comparison :)

The more I think about it the less doable it seems with just VCDS (the 4m RFID range, module connections for RFID sensors etc...).

Changing my byte from 00001111 to 00000000 definitely disables remote roof open/close.

Such a shame, I guess the only option for non-Advanced Key'ers is smartTOP.
Yes, it wouldn't hurt to have some more data for comparison :)

The more I think about it the less doable it seems with just VCDS (the 4m RFID range, module connections for RFID sensors etc...).

Changing my byte from 00001111 to 00000000 definitely disables remote roof open/close.

Such a shame, I guess the only option for non-Advanced Key'ers is smartTOP.
I'm rebuilding my laptop at the moment so will check the module part tonight..

Mentioning SmartTop.. what do you think that is actually doing then to allow it to work? What is it 'intercepting' to allow remote roof. I assuming its "tricking" the car somehow into thinking your using the key in the door to open the roof or something like that.. :wall:
I'm rebuilding my laptop at the moment so will check the module part tonight..

Mentioning SmartTop.. what do you think that is actually doing then to allow it to work? What is it 'intercepting' to allow remote roof. I assuming its "tricking" the car somehow into thinking your using the key in the door to open the roof or something like that.. :wall:
It isn't doing anything special - it is just listening to data travelling on the CAN for remote key presses or cabin roof switch presses and then talking to the roof module directly to open/close the roof whilst sending messages on the CAN to flash the hazards etc...
I was so hopeful with your latest findings but still nothing....

I changed byte 2:

1) 00000101 - Nothing
2) 00000101 + reboot - Nothing
3) 00001111 - Nothing
4) 00001111 + reboot - Nothing

Here is my module information... of course it's slightly different....

PHP:
Address 05: Acc/Start Auth. (J393)       Labels: 8K0-907-064-05.CLB
   Part No SW: 8K0 907 064 CS    HW: 8K0 907 064 CS
   Component: BCM2 2.0      H05 0431  
   Revision: 00002001    
   Coding: 0D0300
   Shop #: xxxxx
   VCID: xxxxx

   Part No SW: 8K0 905 852 D    HW: 8K0 905 852 D
   Component: J764 ELV MLB  H37 0042
My default coding for the module: 0D0300
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I was so hopeful with your latest findings but still nothing....
...but your module accepted the coding? Hmm...

I tried your exact codings for module 09 and 46 on my car, at the same time, I was still able to open/close the roof with my remote so I think this should rule out module 09/46 codings having anything to do with it.
...but your module accepted the coding? Hmm...

I tried your exact codings for module 09 and 46 on my car, at the same time, I was still able to open/close the roof with my remote so I think this should rule out module 09/46 codings having anything to do with it.
Good to know ...

Still no joy ... But, I decided to try a couple more things... I changed Module 5 Byte 0 to be RoW instead of NAR, nothing (0101 or 1111). Then I changed Auto-Roof (Mod 26?) Byte 0 to be RoW instead of NAR, nothing. Rebooted, nothing.

Both modules have been restored to the prior settings.... So still have window control but no roof/top control from the remote.

I'm hoping to have some time to start investigating this again real soon. Thinking I might just swap scan dumps with you and see if we can find something.
I'm hoping to have some time to start investigating this again real soon. Thinking I might just swap scan dumps with you and see if we can find something.
Yes, that would be a good idea, it might be time to try those adaptation channel scans I mentioned previously; but I am still dubious about this not requiring extra hardware - my roof will stop opening/closing if I move more than 4m away from the car, it can only know this with the RFID sensors on Advanced Key cars, so if the software wants to know if the key is within distance to actuate the roof its not going to work for you.
Still no joy ... But, I decided to try a couple more things... I changed Module 5 Byte 0 to be RoW instead of NAR, nothing (0101 or 1111). Then I changed Auto-Roof (Mod 26?) Byte 0 to be RoW instead of NAR, nothing. Rebooted, nothing.
Try my complete module 05 coding? 05130F

Note: I didn't need to reboot anything when changing byte 02 in module 05, the roof wouldn't do anything from the remote immediately after changing it to 00000000 (and vice-versa).
Try my complete module 05 coding? 05130F

Note: I didn't need to reboot anything when changing byte 02 in module 05, the roof wouldn't do anything from the remote immediately after changing it to 00000000 (and vice-versa).
Sorry, I wasn't clear... I did compare our differences and applied those that made sense (ie; RoW but not Right Hand Drive). I think there were only two differences, so RoW matched byte 0, and byte 1 was a match with RHD so I didn't do that one.

Good to know you didn't have to reboot. I know I needed to reboot to enable voice control so it's usually the last thing I do if things don't just automagically work.

(This past weekend we took my son to a state chess championship tournament w/his school team, weekend before that was his all weekend birthday party, life's been busy...)
No worries :)

Do you have instant messaging or anything like that? It would be good to chat with you on a day we're both free to do some VCDS thrashing.
I think I saw one of the Audi dealers offering a £150 pack to enable remote hood operation. I think it was Stafford Audi but can't be sure.

Cheers
RG

Just found this:

YouTube - mods4cars SmartTOP for Audi A5 Cabrio / Convertible
Just to confirm.. Should you be able to open the roof of an A5 Cab with Advanced Key without any mods at all?

Cheers
RG:cheers:
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