I guess this is a TD not a TDi, yes they can be a bit difficult, longest it has taken me is about an hour cos the top bolt was tight all the way, however a combination spanner (ring one end slightly cranked & open ended the other) sorts the bottom bolt and very often will crack the top bolt then a quarter drive socket with extensions to get the ratchet to a workable place, usually around 6 to 8 inches long, I usually modify the dipstick tube a little to get better alignment, bit of brute force here only needs 10mm or so, then yes a bit of fiddling and it comes out the top, best to remove a couple of the cable anchor points to the manifold, makes it easier to move the stiff cables, some have come out into the wheel arch but depends on the brake pipe configuration as there are differences, some I have reformed the pipes a little others there is no way without possibly doing damage, Rick