I have car with automatic gearbox, gears on changing up whilst building up speed , seem to be "snatching" up.

Question

its like smooth going ut then snatch into yhird, then "chunk" in to top then OK. What it does do if its going uphill or under slightest medium pressure from exh, it changes up and down . Been to "garages" suggestiong,, its needing filter changed in gear-box, another torque con has gone, another too much ATF fluid in box. Have tried latter remedy to no avail, anybody help. It!s an Old classic Merc 190, other than the gear box its magic. Only recently this has started to happen, well the last 9months .Prop shaft been checked rubbers ect, just passed MOT two months ago. Its not a dump shot !cause its a cracker AMG. dont want to lose it. ..

Answer 1

Do the obvious first. Make sure the fluid level is correct, have the filter changed, if that doesn't fix it bite the bullet and have it checked out by a REPUTABLE transmission specialist. Don't spoil a fine car with a cheap job!. Good luck.

Answer 2

Probably worth trying new filter & fluid change, but chances are it's needing major work. By the way, don't take it to a 'garage' because most garages haven't got a clue about autoboxes. Look in Yellow Pages for a specialist repairer. Your car certainly sounds like it's worth spending the dough on, Merc 190s are getting rare & if you can afford it, the work's worth doing.

Answer 3

with out actually looking at it I could only suggest since you say it changes up and down fast meaning it goes thru the gears when it shouldn't. I would suggest a vacuum leak check or the apparatus o the transmission that controls the shifting (other end of the vacuum line)

Answer 4

i would suggest changing the filter in the gearbox, as its the cheapest and easiest thing to do, but if that doesnt (and i suspect it wont) fix it, i would say its new/recon gearbox time. sounds like a wet clutch pack is getting a little worn, and as engages, it slips then grabs, thus giving you your "snatching" effect.