I’m no expert on this topic and my hands are neither small nor huge.
I renewed the door handle which included swapping the lock barrel.
I struggled to achieve all that whilst others on here renewed the electronicall part of the system in a fraction of the time I spent doing it.
i tried fitting the electronic parts and then the barrel and failed miserably.
To resolve that I removed the electronic parts (again) to give space. Then I fitted the lock barrel and it’s retaining clip.
Re fitting the electronic bit afterwards was easy if a set sequence was adopted.
i would have to search my records to see if I can find that sequence if necessary.
yes the window was down I think although I think I also raised it at one point.

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