Hi i just changed the motor oil and filter every thing back where it come from engine running smooth but now won;t engage any gears any ideas?

You sure you drained the motor and not the transmission, this is not the first time this would have happened

Yea you may have 9L of engine oil in your car and zero transmission fluid :P

Haha, he is aspiring to be a porn star, not a mechanic though :D

just need a bit more info about your ride

welcome the the club,

first thing first as mentioned above, did you drain the correct fluid?