A few months ago it started to get hard to select 4th gear when going up the box but if you were very slow or had two or three goes at it it would go in. If you were coming down the box it was no problem..

Now i cant get 4th at all going up or down

If i let the car tick over i can get 4th no problem when at a stand still

What do you think by the way the box is only 39000 miles from new

cheers lee