help please swapping abs unit with different part number ending ? re-code on vcds ?

[dazbo1972]

hello i have recently purchased a audi a4 b8 s-line 2008 with faulty abs unit part no : 8K0907379AQ
went onto fleabay and bought a used replacement off a guy breaking one so called same part number......well it was nearly the same : 8K0907379AK
can anyone please tell me if this replacement abs unit can be coded to my car and if so how i do it on vcds as i purchased a ross tech hex can but have not used it and no very little about diagnostics but need to learn as paid £263 quid for it and never used it yet,many thanks for any help/advise daz.

p.s. was told by former keeper of the car that the abs module is knackered as he had it diagnosed.....abs & traction light both illuminated on dash.

[Guest 2]

Have you had the car scanned for faults with the old module in place? Don't ever just assume the module has cooked itself before the scan.

[dazbo1972]

thanks for the reply.....no sorry i stupidly went ahead and just swapped the units as the guy in the trade i bought the car off said 100% it was knackered,basically swapped them over bled the brakes and still got esp abs fault flashing on dash ???
i never noticed the last 2 digits different before i swapped them...original part ending AQ replacement AK
can anything be done on vcds or do i need to find the exact part number,any help much appreciated daz.
i really need to understand electronics and use this vcds dont i lol ....:confused:

[dazbo1972]

anyone help or any advice please.......can i re-code this abs unit to work on my car ?????????????

[gupsterg]

Hi received your email, whilst goggling for info found your thread.

P/N's you are stating are the control module part of ABS unit, on both ABS units there will be a P/N 8K0 614 517 xx , what are they?

You see the ABS units on 8K support hold hold/TPMS, some P/N's do others not, you could be losing features by swapping to different ABS unit and may need to buy right one if old is knackered. Do you have hill hold/TPMS?

I have no info on adapting it yet other than you will need to gain security access to module, whilst in module 03 you'll see security access button, after clicking that hoover over blank entry area and a box will appear with code, enter that code, then you can do adaptations AFAIK.

You may find a PM to A8 Tech gets you solution.

[dazbo1972]

gupsterg many thanks for getting back to me.....;) ok i thought the 8k0 numbers were what i needed but if not i take it the required part numbers will be stamped into the abs unit housing so i will get those numbers from the car later and post details,also i don't know if the car has tpms as only got the car recently with abs fault already present.....will update required numbers shortly thankyou again for your help daz.

[gupsterg]

If you have a service log book there will be a car data sticker in there, you can enter PR codes (equipment codes) into this decoder Link:- http://igorweb.org/equidec/

As only an A6 owner I don't know if A4 have a copy of data sticker stuck in the spare wheel well like my A6 does but check there.

If you have no luck at all with finding/decoding data sticker PM your VIN and I'll see if I can get some info on car.

[dazbo1972]

hi gupsterg the original abs p/n off the car : 8K0614517DF
new unit i have fitted and bled brakes up : 8K0614517CP

i have the service book with the white sticker id label inside .....i have taken a photo of it and sent it to your email for you to have a look at,any help greatly apreciated kind regards daz.

[dazbo1972]

hi guys i fitted a replacement used abs unit after original was damaged in previous minor accident on n/s front corner.
original abs part no: 8K0 614 517 DF
used replacement ( was told it was same part number of lying or blind ebay seller ) : 8K0 614 517 CP

anyway without realising last 2 digits not the same i fitted the part and have esp / abs fault displayed and dtc code 01794 incorrect chassis / vin on vcds ?

gupsterg has kindly looked into this for me and is going to get back to me on this problem with a possible solution when he is not busy and can spare the time which is much appreciated :D.......anyways after a bit of advise from gupsterg i went into module 03 then security access and got code enabling = 61378 which was accepted and i currently have 160504 as current coding,once at this point asking for new coding to be entered i got stuck ?
i am clueless on vcds but trying:confused:
anyways whilst i await a reply from gupsterg i am intrested to know if anybody else has experienced any problems good or bad coding a used abs module especially if the part number is not 100% the same and if it makes a diffrence:confused:

any help advise or personal experiece on the topic of used inter-changable modules is of intrest whilst i await a reply from the good man gupsterg thanks daz:beerchug:

[gupsterg]

Hi Daz,

The coding section you are accessing is for options eg TPMS, etc not to code module to have correct VIN.

When using VCDS in Advanced ID of replacement ABS unit it may state the VIN coded in it, you can't change it there. You are getting DTC as say your engine ECU/other modules will have x VIN in it and ABS has another.

After googleing/reading stuff to me it seems you only have 3 ways to resolve this:-

1. Change VIN data in ABS module by doing adaptations, which adaptation channel no idea, perhaps as a genuine VCDS user Ross Tech will tell you via support service.

2. When conducting research on P/N's for you an SVM code is shown when ABS modules swapped, only a main dealer or indi with online VAS can do SVM.

3. Find a thread where retrofit of TMPS / hill hold been done to an A4 B8 / 8K where ABS module was swapped and have details for what they did.

Have you PM'd A8 Tech?

[Mohohunter]

dazbo,
Have you resolved this issue? I recently went through a similar experience. Through VCDS I was able to swap an abs module that was not the exact part number and recode it to the vehicle. It showed the same incorrect chassis code. Let me know if you still need help and I can post a reply of what I was able to do. It involves the login and coding options. To let you know mine was a 2003 Audi A4 with the Bosch 5.7 module. Yours is newer but I think it should still work.

[Mohohunter]

Daz, I am unable to send you a private message as I am new to the forum and do not have ten posts yet. Please let me know if you have this resolved though

[dazbo1972]

hi gupsterg sorry for late reply as been on my hols:D......wish i was still there lol ha ha,thanks very much for your help and advice i will firstly look into the vin adaption and see if it can be changed as to my thinking if this was not possible then all the used second hand units would be obsolete which sounds crazy to me ?
i have not pm'd a8 tech but i will do so on your advice and if no luck i will speak to ross tech.
i have a genuine cable but not registered for support as i intend to re-sell the lead when i sell the car next year....any idea's if i will have to register the cable as last resort to sesolve my abs issue's as the re-sale values are lower when sold to next owner,mine is the kit in the box with hex can cable plus adapter cables for early pre 1995 car and also round pin connection for vans etc currently retails at £306.00.
if i can get advice on possible re-code abs without registering the cable for technical help that would be better for my re-sale of the kit as i am only a private novice user of vcds with very little knowledge......many thanks again gupsterg for all your help and advice kind regards daz.

[dazbo1972]

hi mohunter many thanks for your help and interest sorry for late reply as been on holidays so just got back.
i still need help if possible to re code the new abs unit which i am hoping is possible as i bought it too long ago now to return from ebay seller,also to my thinking surely these used units can be used again as if not the scrapyards would have no re-sale value on obsolete abs units ?
sounds crazy to my thinking,anyway if you can shed some light on this subject i would be very greatful for your time.....basically if it can be re coded i need clear instructions on vcds instructions as i have only used mine a couple of times for needle sweeps etc so pretty much clueless on how this thing actually works to it's full potential ?
if possible i do not want to register the cable for technical help with ross tech as i intend to sell next year along with the car,please get back to me if you have done a similar fix to my problem,many thanx daz.

[Mohohunter]

*Edit- from reading previous posts I surmised that you may need to use the "Security Access-16" instead of "Login-11". On my 2003 A4 the Security Access is grayed out while the "Login-11" is not. If it is the other way around then just follow my directions but instead use "Security Access -16" where I say to go into "Login-11" Also I just read that in the 2008's as well as the Steering Wheel Alignment you may need to perform ESP-Sensor Unit(G419) calibration, if equipped. For this check the drop down menu and/or group 069 within "Basic Settings". I have found a link to a Youtube video of this being done that is very good and covers a few areas that I missed such as changing the workshop code. here is the link Coding the Bosch 5.3 and 5.7 ABS Modules - YouTube (https://www.youtube.com/watch?v=G7YRiVYrLjo)

Ok it is a fairly long process but here goes I will try to be as thorough as possible but please feel free to ask any questions. This will be written as though you know how to do the simple things.

Step 1. Plug the cable in and with the key on get into the ABS section of VCDS (Select Module>03-ABS Brakes)

Step 2. You will need to turn on your vehicle and leave it running for the duration of this process. You will need to perform a steering angle sensor alignment after coding so this is very important.

Step 3. Take note of the heading that reads "soft. coding:". Write down that number in case you may need it later. First you need to find out what the Login and Coding is for your specific vehicle. Click on the Login-11 option. You should see a pop up balloon that will show you the different options to create your five digit code. The code is based off of your vehicle information(model,engine,brakes,transmission)25158 Refer to Image. The only one you may not know is your brakes option. This information can be found in spare tire well on a sticker. You will need to look on the sticker for PR code containing the three digit codes in the brakes section of balloon(in picture example mine are 1LA,1LG,1ZL,1LT,1LZ) Write down this 5 digit code. For example only, if I had an A4 with Brembo brakes, 4 cylinder engine, automatic- The code would be 09477.

Step 4. Enter this code into the space provided and click "Do it!"(if you incorrectly enter the code you will have to turn vehicle off for a few minutes and log back in to try again)

Step 5. Now go into the Coding-07 option and you will need to do the same thing for Coding as you did with Login. Another balloon will pop up but please note the code will not be the same. You will easily be able to figure it though based on the information you already acquired. After you find out this code also write it down and then enter it in the space provided. If the workshop code(WSC) reads 00000 then you will need to change this to 12345 and then Click "Do it!" If the work shop code is any other code than 00000 then you can just leave it alone. You should now be able to look at the "Soft. Coding" and it should say the code you just entered.

Step 7. Go back into Login-11 and enter the code for "basic settings enabling" This should be "40168" but I can not confirm that it is the same in every version of VCDS. Look at the bottom of the balloon and it will tell you. Enter this code and again click "Do it!"

Step 8. Go into "Basic Settings -04". Turn the steering wheel 90 degrees to the left and then back to dead center also making sure your tires are completely straight forward. You should see a drop down menu like this 25159. Click on the "Steering Angle Sensor(G85) Alignment" After you do this you should see all the boxes be green and the third box should read "OK". If the drop menu does not display you can enter 001 in the "group" box and then click "Go" After this is done you can click "Done, Go Back".

Step 9. You are done and just saved yourself a ton of money. You can exit the module and VCDS. Give yourself a pat on the back.

Please note that if you are unable to even access the 03-ABS Brakes module then your module is not compatible at all with your vehicle and or it is a faulty module.

Please feel free to ask any questions. My instructions make sense to me but may not to others. Have a great day and I hope this helps you and/or others
Also check out the Ross Tech Wiki and Forums. These have been very valuable resources to me. Here is a link to info on your specific vehicle. It is a split year though. Audi A4/S4/RS4/Cabriolet (8E/8H) - Ross-Tech Wiki (http://wiki.ross-tech.com/wiki/index.php/Audi_A4/S4/RS4/Cabriolet_%288E/8H%29)




(http://wiki.ross-tech.com/wiki/index.php/Audi_A4/S4/RS4/Cabriolet_%288E/8H%29)

[dazbo1972]

hi mohunter thanks for the info top bloke i managed to sort it out off your instructions.......now all working:D job done thanks to your instructions i worked it out,basically i got to step 8 basic settings and thought i had hit a brick wall as there was no options at all to click into absolutely nothing:confused: whatsoever so did not find or cover anything on steering angle sensor / alignment etc.....i am pretty much clueless on vcds so just had a play and the 2 5 digit codes were displayed in bubble for me so all i did was enter those all by going through security access 16 as option 11 was greyed out like you said it might be and somewhere along the lines i encountered ross tech stating something like "put to default 12345" or something ????
god knows what i did but it worked anyway esp light gone out and deleted fault codes then re-scanned and abs status : ok :D so fingers crossed all stays good now as no idea if the incorrect vin/chassis has gone as all i did was enter the 2 5 digit codes and nothing else but the car runs fine with no esp bleeping on dash so made up as thought i might have to remove and fit identical part with same matching numbers......excellent thanks for your time pal much appreciated daz.

[dazbo1972]

forgot to mention now the unit appears to work ok and there is no abs fault codes do i still need to do adaptions regarding the vin/chassis numbers as this abs unit was off another car or does it look like i may have already done it by chance on my vcds clueless guessing game adventure ha ha thanks again daz.

[Mohohunter]

Daz,
First off I apologize that due to my inexperience with 2008+ Audis that you were unable to follow my directions word for word. I am glad however that you were able to sort it out. It would seem that based off your information you have a 2008 1/2. They made a split year with the 2008. From what I understand there is a B6 and a B7 facelift version. I read on Ross Tech that the newer ones they moved the Steering Wheel Alignment to Channel "16 Steering Wheel". I was curious to see how that would work with the Steering Alignment process needed for the ABS recoding. Technically the real work is done by entering the 2 five digit codes. In the 2002-2008(pre facelift) it is required that you do the Steering Alignment, or after you exit the ABS module with VCDS, it will simply revert back to what it was before. Since they moved the Steering Alignment to channel 16 it makes sense that you would not be required to do that for it to work in the 2008 1/2 models. This means that for 2008 1/2 models and beyond you would simply need to follow steps 1,3,4 and 5. The main thing will be comparing what the "soft. coding" says while you are within the "03-ABS Module" to what it said before. Before I coded my module this read "00000". After I coded it, even if I exit the ABS module and come back in it will correctly read 09477(this is my vehicle information). This is a lot of information just to say that you should not need to do any more coding and/or adaptations. I am glad this worked for you and hopefully it can help others as well. If you are reading this and have a 2002-2008(pre facelift) then the above instructions should work easily for you.

Also I found and watched a video for how to do this that explains it in much more detail than I was able to. I posted a link above but will also put it here.
Coding the Bosch 5.3 and 5.7 ABS Modules - YouTube (https://www.youtube.com/watch?v=G7YRiVYrLjo)

[dazbo1972]

hi mohunter my car is a 2008 first of the facelift b8 model....your instuctions are nice and clear i just got thrown off a bit when i went to basic settings and nothing came up so thought i had lost my way a bit on vcds as totally clueless at working this great piece of kit but keep trying:confused:
anyway after resolving the abs unit problem which is great:D i have run a scan the day after and now got 2 faults again not sure if related to abs ?

08 - auto h vac malfunction 0010
09 - central electrics malfunction 0010

tried deleting dtc's but both came back on but car is running sweet with no warning lights on dash....not 100% but pretty sure these faults were not there before i had a play on vcds with abs coding any ideas's :confused:

many thanks again daz.

[Mohohunter]

Daz,
Both of those codes sound unrelated to your ABS. I suspect that they were there before. Did you find these codes by running an "Auto Scan"? Was that all Thad VCDS said? It seems rather vague. I am unfamiliar with those codes but tomorrow (I'm in the US) I can see what I'm able to find out about them.
Mohohunter

[dazbo1972]

mohunter thanks for the reply.....yes i did a quick auto scan and got these 2 faults both showing malfunction 0010 ?
the only thing i know wrong with this car is the aircon don't work (no gas) aircon pipe broken, other than that no known faults,just wondering if this could be aircon related :confused:
if the codes are nothing to do with abs/esp or steering etc that would be good thing and hopefully nothing much to worry about.....any idea if i still need to change anything on abs regarding vin/chassis change & different part numbers or will 5 digit codes have sorted this out on vcds,cheers again daz.

[dazbo1972]

also forgot to add that this thread should provide some very good info for anybody swapping abs units as all google and forum threads i found stated identical part numbers to be used and some even stating a "used" abs unit deemed obsolete by vin coded to specific car and probably have to buy brand new unit coded by main dealers:confused: obviously NOT correct and can be re-used again.
some very good info from mohunter having already swapped abs with different part numbers and re-coding on vcds as well as myself proves this can be done with success sometimes but may not be the case for all as i think i got lucky as my part numbers were only last 2 digits in difference so very similar abs unit.
thanks to gupsterg & mohunter for there input on this subject cheers lads i owe you a drink for your time:beerchug: and good luck to all reading this thread with similar problems daz.

[Mohohunter]

Daz, yes your module is coded and you do not need to do any additional VIN coding. As far as the other two codes they seem to be the CAN gateway list codes. I would go into the select module and go in to channels 08 and 09 respectively. From there click on the fault codes to see if you have any. If you have no codes then I wouldn't even bother. Some have said reintializing the CAN gateway list can fix that. It's not a big deal though and I would not worry about it. Thanks for the kind words. I'm glad I could help you out :-)

[dazbo1972]

hi mohunter i will look into the 2 channels like you mention and try clearing the codes but not to worried as got no dash lights displaying any faults and all appears ok;)

many thanks again for all your help & quick replies to this thread top bloke,cheers daz.

[dazbo1972]

quick update only drove the car today since abs repair and soon as i got to aprox 10 mph total chaos.....lights beeping off all over the place abs/esp/brake failure/park brake/no speedo dash lit up like a illumination show :zx11:
if i delete all dtc's they stay off but soon as car driven to speed all hell breaks loose i cannot have coded this abs correctly :confused:

gutted car still off the road and back to square one :(

i will do a scan tomorrow and post results if anybody can help thanks daz.

[dazbo1972]

UPDATE: hello everyone after many headache's trying to code this in-correct module to my car i have now repaired the damaged casing on the original abs unit and put it back on my car now all esp abs red flashing brake malfunction crap displayed all over the dash lighting it up like blackpool illuminations is now back to normal thank god.....:biglaugh:
so please disregard all my posts on this subject as to swapping with in-correct part numbers as i have had no such luck on the audi a4 b8 platform.
mohunter has had positive results with abs swaps on a earlier 2003 a4 so no idea if the 2008> can be done or not but this was probably a rare case as mine was accident damaged from a n/s corner smash not a normal a4 failing part issue,thanks again to mohunter & gupsterg for there input on this thread......my advise would be to get replacement parts with exact same part numbers to avoid any hassle messing with codes....i just got ripped for £125 for wrong abs supplied but will just re-sell as just releived i have botched my old unit to work cheers people :beerchug:

[gupsterg]

Cheers for update :) , sorry for my delayed response :( , hope all is still well :) ?

[dazbo1972]

thanks for your interest gupsterg,yes all is ok and everything working now so all good accept one new niggle.......rear wheel bearing droning noise :( this car is testing me all the time lol,looks like another audi common problem shared by others on the forum.....thanks again for all your help,cheers daz.

[Brian1987]

Hi their I am new to the fourm and look to code in a audi a1 2011 abs used pump which has lost its coding I bought the car like this and have no way of finding out old coding or seeing old pump I am using vcds any help would be much appreciated thanks