Barry, I have the same pretensioners as on picture. It is norm on later models which came with recaros. As you can see, the anchoring shaft is in front, and on earlier models it is on back.
Since you are handy with welder, I would suggest you weld on extension with new shaft that would hold the pretensioner in place in case of firing. You can't just change the pretensioners as it will throw the error code and the fault indicator will start flashing. It has to be the original pretensioners and you have to modify the seats mechanically to accomodate for the ones you have already
Not the best of news, I am affraid, but that is what needs to be done
Since you are handy with welder, I would suggest you weld on extension with new shaft that would hold the pretensioner in place in case of firing. You can't just change the pretensioners as it will throw the error code and the fault indicator will start flashing. It has to be the original pretensioners and you have to modify the seats mechanically to accomodate for the ones you have already
Not the best of news, I am affraid, but that is what needs to be done