It is possible that it may want bleeding but get them to put another one in if this doesnt make it better. I had this problem on my TD4 October 2003 at 58000 miles and it was still under Land Rover guarantee so it was done for nothing. I was told the same by the LR agent I bought it from that it would get better it didn't and took it to a different Land Rover agent who changed it straight away. The first L R dealer did not want to be bothered with it.There is no adjustment and to do the job the whole clutch bell housing has to come off as the slave cylinder is inside it.