Morning all,
Started having an issue lately, with the transmission getting stuck in a gear. Got codes "P2784-INPUT SPEED SENSOR 1/2
CORRELATION" the first 2 times this happened, each a week apart, last being sunday night, then this morning the issue happened again but p2784 grayed out and i got "P0717-INPUT SPEED SENSOR 1 CIRCUIT NO SIGNAL" active instead. With p0717 im guessing this is the conductor plate or the sensor. First time this happened was down shifting after a wot pull and it stuck in 2nd. The next time this past sunday it stuck in 3rd while i was on the highway. This morning it stuck in 4th. putting it into neutral and restarting the car even while coasting seems to reset it. Seems to be when downshifting as far as i can tell, i only autostick so its just really apparent when it does this, as the shifter stops responding. Pushing it into neutral and back into gear leaves it in D in what ever gear its stuck in.
Rockauto has a Dorman brand plate for $135, I know dorman is usually pretty good for everything else and the pics on the rockauto listing have the mercedes logo and name molded into the plastic. However it doesn't seem to include the sensors unless they are built into the plate, but i cant find any information in the manual about them.
If they are a part of the plate im assuming they are the 2 things that are next to what appears to be a float and above the main connector in the curved part of the plate that looks like it would get really close to the rotating assemblies.
More Information for DORMAN 917679
The car still drives really nice, and shifts nice and firm with my tranzformer and diablo tune so i doubt its anything mechanical, it doesnt slip either, torque converter feels a bit loose some times but nothing major. I just dont want to drop the pan to check without having something else to shove in there , because it is my daily i don't want to have to replace that fluid and gasket twice (on a tight budget).
Thanks.
Started having an issue lately, with the transmission getting stuck in a gear. Got codes "P2784-INPUT SPEED SENSOR 1/2
CORRELATION" the first 2 times this happened, each a week apart, last being sunday night, then this morning the issue happened again but p2784 grayed out and i got "P0717-INPUT SPEED SENSOR 1 CIRCUIT NO SIGNAL" active instead. With p0717 im guessing this is the conductor plate or the sensor. First time this happened was down shifting after a wot pull and it stuck in 2nd. The next time this past sunday it stuck in 3rd while i was on the highway. This morning it stuck in 4th. putting it into neutral and restarting the car even while coasting seems to reset it. Seems to be when downshifting as far as i can tell, i only autostick so its just really apparent when it does this, as the shifter stops responding. Pushing it into neutral and back into gear leaves it in D in what ever gear its stuck in.
Rockauto has a Dorman brand plate for $135, I know dorman is usually pretty good for everything else and the pics on the rockauto listing have the mercedes logo and name molded into the plastic. However it doesn't seem to include the sensors unless they are built into the plate, but i cant find any information in the manual about them.
If they are a part of the plate im assuming they are the 2 things that are next to what appears to be a float and above the main connector in the curved part of the plate that looks like it would get really close to the rotating assemblies.
More Information for DORMAN 917679
The car still drives really nice, and shifts nice and firm with my tranzformer and diablo tune so i doubt its anything mechanical, it doesnt slip either, torque converter feels a bit loose some times but nothing major. I just dont want to drop the pan to check without having something else to shove in there , because it is my daily i don't want to have to replace that fluid and gasket twice (on a tight budget).
Thanks.