[l322roger]

manual on all gears work and reverse works.
accelerating from standstill is fine then after that, I hear a whine, feel a loss of drive then BAM! I don't know if its 4th or 5th but transfail shows on the message centre. Its in French so it took me a google translate to understand.

manual on to 3 then auto works fine after that. Ill try 1 on manual then auto and the 2 on manual then auto.

could it be a valve body problem?

 

[l322roger]

It turned out to be a loose connection to the trans oil cooler. Oil was leaking out and the pump can’t produce enough pressure. It works in d and sport mode now after I tightened the loose nut and topped up the oil.