Hi,
I have a 1990 626 executive auto and have lately had the problem of the
overdrive not working, all the other gears ie 1,2 and 3 work fine but it
refuses to go into the o/d ratios.
It used to take a while for the o/d to work but I think there is some kind
of temperature related cut out, could this be the problem?

Thanks for any help

Jess