The most strange problem with transmision 722.9
I use for daily basis a S500 2005 , to delivery stuff to my clients (yes, i use the s500 utility car)
More than one year, this car give me an excelent service, with razonable gas consumption.
But now, i experimented issues with the transmision, a really strange behaviour.
Sometimes, the tranny shiftpoints change from 1900-2000 rpm to 3200 rpm to engage next gear....... but when i "SMASH" the car with a high bump (in mexico call us TOPE) in high velocity, the car shifts correctly.... that's very weird.
So, the tranny is the 722.9, i change the fluid recently, reset many times "reset adaptations" the Oring in the tranny are only 5 pins and seems fine (no leaks)
To me only exists two sensors in the wheel when i "smash" the car is the ABS sensor and the level sensor.
So, this behavior is the same when downhill the car (considerer what this, is the normal operation) when this car align with the street, works fine.
Is like the car "Thinks" are still inclined in downhill, because are exact the same behaviour. but again the SMASH fix the issue (for a while cleary)
Some advice for this strange issue?
Regards from Mexico
Last edited by Osc Garcia; Feb 22, 2021 at 07:03 PM.


