W203 C270 CDI Automatic gearbox problem+Power loss
05-12-2016, 03:15 AM
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Mercedes-Benz W203 C270
W203 C270 CDI Automatic gearbox problem+Power loss
Hello, first of all i am very sorry for my bad english.
So the problem is with my automatic gearbox (722.6)
1. When driving, after some kind of small punch in transsminsion its getting stuck in 3 gear and after car resetting (turning engine on and off) car goes to limp mode where there is only 1,2 gear, max speed 30km/h
i did Star diagnosis to that limp mode and the fault code is - P2203 "The internal electrical check of component Y3/6n3 (Speed sensor 3) has failed.
2. If i put gas pedal all the way down, sometimes it goes straight up to limp mode (gearbox doesnt change to 3 gear)
3. Sometimes if i put gas pedal all the way down gearbox goes to neutral (Revs is ok but the car doesnt accept those revs so there is no acceleration) Turning car on and off can solve this problem.
4. In winter when gearbox is cold if i stand in D gear after 1 min standing it need lots of revs to start moving, in same situation if i stand i N gear everything is ok.
So i talked to transmission specialist he said that the problem is in my gearbox conductor plate which is in gearbox. Changing that plate could solve the problem.
What do you guys think?
NEXT PROBLEM.
Sometimes i have power loss, it looks like that turbo whistles louder when there is power loss and there is no kick down, no fault codes detected.
So there is my problems..
There is 400000 km on clock
So the problem is with my automatic gearbox (722.6)
1. When driving, after some kind of small punch in transsminsion its getting stuck in 3 gear and after car resetting (turning engine on and off) car goes to limp mode where there is only 1,2 gear, max speed 30km/h
i did Star diagnosis to that limp mode and the fault code is - P2203 "The internal electrical check of component Y3/6n3 (Speed sensor 3) has failed.
2. If i put gas pedal all the way down, sometimes it goes straight up to limp mode (gearbox doesnt change to 3 gear)
3. Sometimes if i put gas pedal all the way down gearbox goes to neutral (Revs is ok but the car doesnt accept those revs so there is no acceleration) Turning car on and off can solve this problem.
4. In winter when gearbox is cold if i stand in D gear after 1 min standing it need lots of revs to start moving, in same situation if i stand i N gear everything is ok.
So i talked to transmission specialist he said that the problem is in my gearbox conductor plate which is in gearbox. Changing that plate could solve the problem.
What do you guys think?
NEXT PROBLEM.
Sometimes i have power loss, it looks like that turbo whistles louder when there is power loss and there is no kick down, no fault codes detected.
So there is my problems..
There is 400000 km on clock
05-12-2016, 11:43 AM
#2
Out Of Control!!
Your mechanic is correct the speed sensors are built into the conductor plate---change the plate and solve the problem----additionally have him remove and clean all the solenoids before he puts them in the new plate
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