I thought I'd share the method I used to successfully remove the front pinch bolt as many people seem to have a nightmare getting them out, some come out easy and some are very corroded in like mine was. Tools and bits needed: 1. https://www.ebay.co.uk/itm/VW-Audi-...900901&hash=item288d9c6454:g:f~8AAOSweEFeMaQz 2. https://www.ebay.co.uk/itm/Makita-D...632653?hash=item3624342b0d:g:ZDkAAOSw25VePV-X 3. https://www.machinemart.co.uk/p/clarke-cat139-professional-150mm-air-hammer/ 4. https://www.ebay.co.uk/itm/PB-BLAST...615690&hash=item3fd97e98b7:g:RdAAAOSwMNxXXA09 5.https://www.ebay.co.uk/itm/Rothenbe...153862&hash=item281a6e6b8b:g:tiUAAOSwkXdav7Z7 6. 16mm 1/2 inch short socket 1. Give the area a really good clean around the bolt and upper arms and back the 16mm nut off about 3mm, drive with the nut like this for approx 4 weeks and apply a liberal dose of PB Blaster (best one I found after a lot of research, ebay approx £13) every 3-5 days or so. If your paranoid about the nut coming off and the bolt falling out just put another nut on the end to lock it in place but tbh you've more chance of winning euro millions than that that happening. 2. Heat the knuckle underneath where the upper control arms drop into it, nice and gentle heat not a roaring flamethrower (the amount of heat applied will not do no damage etc if your nice and gently), do this for about 5 minutes and keep the flame moving about, remove the flame and apply PB Blaster all over, get the heat on it again and keep doing this until you see the PB Blaster bubbling out the end of the thread. Gentle heat, the rubbers on the upper control arms don't get hot if you do it right. 3. while it's nice and hot get the air hammer with the special tool attached on the thread end and give it the full beans and at the same time get the impact wrench on full beans on TIGHTEN (only if its the one in the link above, more powerful ones may snap the head off), keep at this and the bolt will start to push out. 4. Once its started moving get the heat on it again and get the PB Blaster on it again. 5. repeat the above and eventually the impact wrench will start to spin the bolt, let it spin itself nice and free and then the bolt will just push out. Jobs a good one then, just take your time. Mine was 10 years old, 100K miles and had never been touched it was really corroded in but came out well, no need for new knuckles, drilling, grinding or anything like that. If you want anymore info just drop a message on here or a private message, i'm more than willing to help and share my experience to help others.