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Post by Finn (RS3) on Jan 9, 2022 14:52:30 GMT
I took delivery of a 15 month old RS3 in October 2021. UK.
I trawled the net to find my perfect car so ended up getting it from Audi Epsom whereas I live near Manchester (circa 4-5hr drive each way). I have no desire to go back to the dealer to query this.
I have experience of using BimmerCode, carlyapp and a couple of other coding systems on my previous M140i and enjoyed making some subtle tweaks such as changing the number of light flashes and pitch of audible beep on lock/unlock, video in motion enabled, which lights and what brightness for welcome mode etc. Just little things but it made the car more personal to me.
It was only after I’d got my RS3 home that I discovered keyless entry (which is listed as being on my car according to Audi) isn’t working. Or rather it looks like it may have been disabled, perhaps for security reasons. If I go to grab the door handle from behind, the LED on the key flashes confirming (to me at least) that the car and the key are communicating with each other. But the fact the vehicle doesn’t unlock suggests to me it may have been coded off.
I thought - no problem, already got carlyapp. Will try that. Couldn’t access what I suspected was the appropriate control unit. Bought another VAG coding system which needed a Windows OS. So hurriedly bought a new laptop! Again, couldn’t access the control unit. Then discovered SFD protection online! Could have saved me a few hundred quid that!
Now bought OBD11 and an ultimate subscription.
So…
Does anyone know if indeed it’s possible to code keyless entry off and if so where that particular feature/function might be residing and how to change it.
Any RS and especially RS3 owners around Greater Manchester say hi. Always good to meet fellow owners.
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Post by dv52 (Australia) on Jan 10, 2022 20:38:30 GMT
@finn (RS3): I'm a little south of Greater Manchester - but Hi. First, I'm not sure if you know what I'm about to write - so my apology if you do.
Your MQB platform car, contains a number of separate computers called "control modules" (I'll call them just "modules") that are networked together via a communications protocol called CAN (Controller Area Network). In general, each of these modules has a specific function - but because the operating environment on a modern car is so integrated, modules are seldom stand-alone. Instead, it's normal for individual modules to enlist the aid of other modules on the CAN network to operate a specific function.
For keyless entry on MQB platform cars (the VAG name for this activity is called "KESSY"), the primary module is called Access Startsystem Interface and it is reported by OBD11 as living @ address B7. In the main, the B7 module controls facilities like the engine start/stop button and car entry via activation of the door handles. However, the actual central locking function on the car is managed by another module called central electrics (this module lives @ address 09 on the CAN network).
Hopefully with the above introduction, you can see that there might be a number of possible reasons why KESSY isn't working on your car. I suggest you start with a scan report - does the scan contain any errors and if so, are any related to either the B7, or 09 modules?
Don
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Post by Finn (RS3) on Jan 10, 2022 22:29:00 GMT
dv52 (Australia) Cheers for the info. As some what of a geek even though I’m new to OBD11 the info you’ve provided does make sense to me in the sense I now know where to look. Already done a scan and no errors come up. Which is what has lead me to the conclusion the previous owner had had keyless entry coded out specifically. I don’t know what it’s like in Oz (just south of Greater Manchester ) but theft involving keyless entry vehicles is becoming a real issue in the UK with amplifier boxes and such like used to scan a house from the outside in the hope of getting a key to respond. The previous owner spent a lot of money on the optional extras and on having a full PPF and ceramic protection put on the car. So it wouldn’t surprise me if the option exists that he had keyless entry turned off. But I would like to know for sure if that’s the case without my local Audi dealer trying to rip me off GBP100 just to do an OBD check first! I’ll have a look into the ECUs you mention and see if I can find anything. Cheers again. If you happen to know any further info please let me know. As it will be invaluable. Or where you found out where the door entry systems are located in the first place.
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Post by dinksy on Jan 10, 2022 22:48:44 GMT
Quick check to see if you have it. Might be worth a try using the key hold the unlock button down until all the windows in the cargo down and hold the indented button on the driver's side for at least 8 seconds if your windows go UP you have kessy installed. That's how I knew I had it from the garage.
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Post by dv52 (Australia) on Jan 10, 2022 23:43:29 GMT
@finn (RS3) : hmm......no errors - OK. Of course the previous owner could have disabled KESSY using a number of methods, but the "popular" tweak is like this: Long coding Control unit: B7 Access Startsystem Interface Passive entry frt.pass. door handle: Old value: activated New value: Not activated Passive entry driver door handle: Old value: activated New value: Not activated The changes above work by setting Byte 1, Bit 0-1 = 1 (i.e. tick). I suggest that you check these software switches as an initial exercise
Don
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Post by Finn (RS3) on Jan 11, 2022 0:46:50 GMT
dinksy Why else would the LED on the key flash when you touch the rear of the door handle or press the dimple. Plus as I have an after market alarm fitted, this disarms when you touch the rear of the handle. The supplying dealer advertised the car with keyless entry. My local dealer checked the equipment fitted and confirmed as far as they can tell it does. So I’m 99.9% certain it does. Maybe even 100%. But tomorrow I’ll give your suggestion a go. Was at Utd v Villa tonight and it’s dark, cool and raining here in Greater Manchester now.
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Post by francesco1102 on Mar 2, 2022 18:23:26 GMT
@finn (RS3) : hmm......no errors - OK. Of course the previous owner could have disabled KESSY using a number of methods, but the "popular" tweak is like this: Long coding Control unit: B7 Access Startsystem Interface Passive entry frt.pass. door handle: Old value: activated New value: Not activated Passive entry driver door handle: Old value: activated New value: Not activated The changes above work by setting Byte 1, Bit 0-1 = 1 (i.e. tick). I suggest that you check these software switches as an initial exercise
Don
I, on the other hand, on q2 I activated the keyless out (when I go away the car closes) but the mirrors remain open there is a way to make them close
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Post by Finn (RS3) on Mar 29, 2022 16:31:31 GMT
@finn (RS3) : hmm......no errors - OK. Of course the previous owner could have disabled KESSY using a number of methods, but the "popular" tweak is like this: Long coding Control unit: B7 Access Startsystem Interface Passive entry frt.pass. door handle: Old value: activated New value: Not activated Passive entry driver door handle: Old value: activated New value: Not activated The changes above work by setting Byte 1, Bit 0-1 = 1 (i.e. tick). I suggest that you check these software switches as an initial exercise
Don
Apologies for the long delay in adding anything here. Read into that as either I’ve been too busy or I’m a lazy bastard! Anyways I’ve just looked into this further and can report my car has the following settings:- Activation of Kessy door handle, frt.pass. door - installed Activation of Kessy door handle, driver door - installed Passive entry frt.pass. door handle - activated Passive entry driver door handle - activated Yet keyless unlocking and locking still won’t function. I’ve tried having a bit of a look round for anything else but as a bit of a novice at this I didn’t see anything immediately which would indicate the system has been disabled. I think I’m going to have to revert back to my Audi dealer and get it looked into.
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Post by dellinmelbourne on Feb 23, 2023 7:32:23 GMT
Good afternoon Finn
Did you manage to sort your issue with Keyless entry. My S5 has just had a new BCM2 installed at Audi BarryBourke here in Berwick Melbourne and they have somehow lost keyless functionality and can’t get it back. First telling me I have failed grounded door sensors which they replaced and we still have the same fault !!! They wanted to charge $750 for this pleasure which I have refused. My car has been with Audi for over a month I would suggest choose another dealer if ever in Melbourne. PS a new BCM2 is $3000 installed after finding out they can’t code the old unit.
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Post by Finn (RS3) on Feb 23, 2023 8:18:26 GMT
Hi Dell. Sorry to hear about your issues.
Yes I did resolve it in the end. I’m guessing the previous owner had keyless coded out for both front doors. I stumbled across it almost by accident whilst browsing changed the coding and hey presto all works.
But my own local dealer wasn’t overly helpful. Initially they didn’t even realise my car had keyless on it and even after some convincing on my part they deduced maybe new door handles were needed as the sensors must have failed. Clearly they hadn’t as the third party alarm I had installed was operating via the handle perfectly fine.
I’ll try and see if I can locate screen grabs of where the coding option was. DM me.
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cs01
New Member
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Post by cs01 on Mar 25, 2024 9:03:54 GMT
Hi Dell. Sorry to hear about your issues. Yes I did resolve it in the end. I’m guessing the previous owner had keyless coded out for both front doors. I stumbled across it almost by accident whilst browsing changed the coding and hey presto all works. But my own local dealer wasn’t overly helpful. Initially they didn’t even realise my car had keyless on it and even after some convincing on my part they deduced maybe new door handles were needed as the sensors must have failed. Clearly they hadn’t as the third party alarm I had installed was operating via the handle perfectly fine. I’ll try and see if I can locate screen grabs of where the coding option was. DM me.
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cs01
New Member
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Post by cs01 on Mar 25, 2024 9:05:06 GMT
Hi Dell. Sorry to hear about your issues. Yes I did resolve it in the end. I’m guessing the previous owner had keyless coded out for both front doors. I stumbled across it almost by accident whilst browsing changed the coding and hey presto all works. But my own local dealer wasn’t overly helpful. Initially they didn’t even realise my car had keyless on it and even after some convincing on my part they deduced maybe new door handles were needed as the sensors must have failed. Clearly they hadn’t as the third party alarm I had installed was operating via the handle perfectly fine. I’ll try and see if I can locate screen grabs of where the coding option was. DM me. @finn, I just saw your post and wondered if you might still know how to code out keyless entry on the RS3 please?
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cs01
New Member
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Post by cs01 on Mar 25, 2024 9:06:46 GMT
Has anyone got a solution that works for this please? I would like to code out keyless access but everything I’ve tried so far hasn’t worked!!
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Post by Finn (RS3) on Mar 25, 2024 11:00:05 GMT
I did manage to sort this yes. I actually turned keyless back on again rather than off.
But as I no longer have the car I’d need to rummage back to see if I have any pics from the coding options I changed.
I’ll look after the next few days and see if I can find anything.
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Post by CallumW on Mar 25, 2024 15:51:15 GMT
There is a way to do it ad-hoc. When you leave the car, lock it with the keyfob and it disables the keyless entry. Esp. useful for washing the car so it's not constantly locking and unlocking all the time.
The car will also auto-disable keyless by itself if left for a long time (days) and/or the battery level drops below a certain voltage. If I know I'm not coming back to it for a while then I'll lock as normal with door contact then the fob as I'm walking away to minimise voltage drop.
Additional advantage of this is that it also stops thieves using tools to remote unlock your car if you left the keys by a front door. The fob will still be transmitting (BLE?), but the car ignores the signals.
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