its hard not to worry... but it must be to do with the work the garage had done
the annoying thing is this:
when he rang to say the van was ready he said , oh your van does not start to well when its hot,
i said no, but i was reffering to the possible two turns of the engine it takes if you do not let the glow plug light go out and wait 5 seconds, there is no way on earth it was anything like it is now when i took it in.
Things are going from bad to worse with my van.
got it from a highly recommended dealer (recommended by this site) ..... it uses 1 litre of oil every 1000miles

brakes are shot exhaust fell off, drop links gone....i could go on
dealer said try some slick 50...
