hi all after some help on this i have got a merc A Class, A140, T reg,WDB1680312J178959, with F displayed on the dash i have used the launch to retrieve the codes in the acs system and get p0700-001 general system error poss cause position controller error, and p1784-000 poss cause clutch defective, can anyone supply me with any testing info please, the gear selector reads all gears correctly except 1st which it comes up with ---, the customer was driving along fine pulled up at traffic lights went to move on and f appeared so had to push it out the way and had it recoverd back to us.