1999 BMW abs module replacement unit used

[davidjmg88@gmai]

Can anyone help
I have just had to replace my abs module for a used one I have managed to find a unit that has the same part number as my old one (Bosch) etc it's not arrived yet, but there so many post that says it needs recoding and does not recoding I'm getting confused. unfortunately I'm not in position to buy new as I'm a full time carer for disabled wife and I don't work for that reason so I've had no choice but buy used parts I'm located in near Bristol Gloucestershire UK and could do with some help with this
So hear are details
Mine is a 1999 BMW e39 5 series 523i automatic using a bosh abs module
Does it need recoding and if it does can anyone help pls

[effduration]

I believe you have to code it... But there is no harm installing and seeing if your lights go out.

If you do have to code it, find someone with NCS expert or ISTA installed on a laptop...and who knows how to use it.

You have an M52tu-engined car, so you have the large round connector under the hood. You will need the special cables to connect to that connector or you can bridge 3 pins inside the connector cap to get full functionality from the OBD2 port inside the car. You won't be able to code unless you do this. Search on this issue.

[jicaino]

The coding you'll need is minimal and if the donor car is a RHD 523i or 528i auto, it will run OK with no coding.

[davidjmg88@gmai]

Good news
All good the car is back to good health again
Part arrived today and with talking with alot of BMW people I found out if you have a faulty abs module on a BMW pre 2002 it will not need recoding and that's what happened when I attach it to mine
So anything after 2002 will need to be recoded

[jicaino]

That isn't correct. No dashlights doesn't mean correct coding. The ASC module needs to be coded for parameters such as rear end ratio, engine, chassis and so on. It will operate in passive mode otherwise which isn't reported with a fault light.

[davidjmg88@gmai]

That isn't correct. No dashlights doesn't mean correct coding. The ASC module needs to be coded for parameters such as rear end ratio, engine, chassis and so on. It will operate in passive mode otherwise which isn't reported with a fault light.
Have to disagree with you
I went to BMW in Cheltenham UK and they confirmed that as long as block and the abs module attached to the block are the same in part numbers and pre 2002 they do not need recoding on the e39 as BMW started to code abs module to the car in that year and to the chassis number and that was confirmed by other garage that was going to program it for me until I told him what car it was etc and it has since been on a diagnostic system to check everything was ok and it is showing no codes or errors

[jicaino]

They told you that because they don't have the equipment to code such old cars.

[davidjmg88@gmai]

Yes ok, funny it's working properly now 😂🤔

[jicaino]

As stated above, if the donor car was anywhere near the equipment and engine of yours the coding will suffice to get it working with no outstanding errors that doesn't mean it's properly coded. If you would have installed a new unit, it wouldn't have worked "properly". But don't worry, I'll make a note not to answer your almost rethorical questions.
BTW I own period correct dealership tools, formally trained to use it. If anybody older than 40 years old told you these modules don't need coding, don't follow advise on other subjects.