Hi all. Im new and sorry to say hallo with a problem but here goes. I have a 1999 SL55.
My auto gearbox occasionally changes down to 3rd, on its own without kicking down at speed (giving me 4.5k rpm at 60mph) and will not change back up till ive stopped the car, turned off for 2 mins and drive off again. Its then fine for several days!!!!...Help please