Our ancient (2000) tow-car is a Korando with the Mercedes 2.3 4 cylinder and automatic (4 speed) box. Recently the box has become "hesitant" : put it into drive, give it revs and after a second or two it leaps forward. It can also creep backwards down a hill when in Drive. The car is used only to tow a horse trailer and hasn't even done that for a few months, so I don't want to spend a lot on it but equally don't want to scrap it. The handbook says that the auto transmission and filter should never need its fluid changed. It needs Castrol TQ95 which isn't available as far as I can tell. My questions are as follows:
1 Is there any point in being optimistic about trans fluid being the problem?
2 If so then what is teh equivalent oil? Remember it won't be harshly treated and will never do more than about 30 miles (at 19mpg!) at a time.
HELP!!!
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