A job I have recently done myself and yes, it's doable on the driveway and yes, drivers side is tricky.
My symptoms since purchasing the car were a big 'jump' (how to describe it better???) when going on/off accelerator heavily...the linked video better illustrates the problem, especially towards the end.
https://drive.google.com/file/d/0B_ptcn1DGkUwaElGQlpGWXFzWU0/view?usp=sharing
I also had the fault code present for the passenger side electro mount but could see no evidence of fluid (in hindsight, I'm guessing not having an undertray fitted had washed it all away).
Not wanting to pay over the odds (+£200) for genuine audi mounts, i did some searching around and found these...
Febi 21240 Engne Mount
Now, these are for the 2.4 litre petrol engine but at the low price I thought they'd be worth a punt. I also thought that as I have a Blacksmoke remap that they would better cope with the "extra power".
When coming to the fitting, I read the various guides and ended up putting the front on ramps then used a jack on the sump to lift the engine (use a block of wood to spread the load) once I'd removed the front snub mount and undone the engine mount securing nuts (TIP don't fully remove the nuts on both sides...slacken all the way off but only remove one side at a time so your engine remains roughly in the right place) . As you VERY SLOWLY jack the engine it has a tendency to tilt towards the drivers side thus making passenger one easier and the drivers that much trickier combined with the restricted access. In an attempt to overcome this problem, I lifted the engine too much and caught a coolant hose at the back of the engine...luckily it was only enough to 'break the seal' on the unions causing minor coolant loss and no damage. In the end, my solution to get the extra clearance for the drivers side was to use a breakers bar to lever the engine back over to the passenger side (a helper to do this would've been great but thankfully, I have long arms!). In hindsight, the suggestion of cutting the threads down would have made it all a lot simpler!
View attachment 64859
Obviously, old one on top.
I've been running the mounts for two months now and my engine no longer rocks about all over the place however, the car feels slightly rough when idling but I feel its a small price to pay (mounts are not matched to the engine yada, yada, yada). Unusually, my slipping clutch has progressively improved to the point where I can no longer make it slip??? If anyone can theorise as to why this could be the case, I'm all ears!