Firstly I was doing my driver's door window, which had stuck in the up position.
So, this meant it wasn't easy to reach the bolts for the window glass holders.
I undid the regulator mountings and lowered the whole thing enough to be able to get a 10mm spanner to them - bit of a blind reach.
It would be (just) possiible to get round and cut the up/down cables to allow the window to drop enough to get at these bolts.
I then started out attempting to measure the cable lengths and match them,but this is nigh on impossible with mangeled bits. I expect these measurements are given in the Fix kits on ebay.
So, I started with the glass holders/runners at their uppermost position.
Then wound the "raise" cable onto the spindle (as it works up from the bottom of the spindle) and fed the other end thru the spring on the holder/runner.
At this point I put a solderless nipple on the cable to hold it in place.
Then I returned to the spindle and ensured I had good tension around it and just enough "lead on" area for the "down cable"
Next I clamped the runner to the slide and pulled the cable tight thru the solderless nipple so I could push that down to partially compress the spring, thus the spring applies tension to the cable and provides a degree of shock absorbance to the system.
This must also allow a certain amount of stretch in the new cable.
Tightened up the solderless nipple.
Second task was to fit the "Down cable" in a similar fashion - this is easier as the cable attaches at the top of the spindle and has a half (180deg) turn around before it exits the spindle housing.
Having tensioned and tightened the nipples I then did a check run up and down to ensure all worked ok with no slack in the cables as the regulator travel direction reversed - which can be taken up by loosening the nipples and tensioning further.
When happy all working ok, bend the excess cable slightly as it exits the nipple and apply solder to ensure it holds and trim off the excess cable.
Lube everything up - best is Silicone Lubricant (NOT WD40 as this stays wet and attracts dirt - Silicone drys to a low friction coating)
Use the same stuff on the glass rubber runners
Fitted and all is working luvly.
Next weekend - Nearside Rear passenger window (5 door TD4)