HI ALL.

i went up last week to collect a 97 e320 i was buying. when i got there after 10 hour drive i was told that the car had the batt. replaced that day as it was dead.
i noticed the key would not open the doors (with or without remote) the lights on the mirror and trunk do flash.
checked under seat. no sound that the vacuum pump was activating.
the car had also been washed that day after batt. was replaced.

drove the car and all felt good except that the a/c was working but the interioir fan would only run at very slow speed. (possible vacuum related).
the trunk wont open and gas cap was closed.
the central locking switch on the dash light was flickering faintly.

i disconnected the batt. --no luck.
went to local shop and he could only look at car next week.
checked all fuses (engine bay/side of dash/under seat and inside computor housing)

went to fiil car with gas and NOW the car would not shift gears even if moved gearshift. stopped at gas staion...NOW NO GEARS.
shut the car of. restarted...now it was selecting gears(drive and reverse). tried disconnect batt. again. car drives but will not change gears....
stopped and disconnected trans. module and put it back...car would only shift once now.

wow what is going on here.

are these things all related? i am more confused with trans. acting up?

PLEASE HELP!!!!!!