Still rough downshift from 2nd to 1st
Thread Starter
Newbie
Joined: May 2006
Posts: 2
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Still rough downshift from 2nd to 1st
We have the updated transmission parts, but have nonetheless noticed a rough downshift from 2nd to 1st, around 10 mph, almost always when the vehicle is cold. It rarely does it when the vehicle is warmed up.
I talked with the service rep and he said that I was probably thinking of a rough shift from 3rd to 2nd, because the vehicle is"is not supposed to shift into first until it is stopped or almost stopped." That got me thinking: Could the problem be the sensor (or whatever) telling the transmission to downshift before the vehicle has come to a complete stop.
Anyone else had this problem and potential fix?
I talked with the service rep and he said that I was probably thinking of a rough shift from 3rd to 2nd, because the vehicle is"is not supposed to shift into first until it is stopped or almost stopped." That got me thinking: Could the problem be the sensor (or whatever) telling the transmission to downshift before the vehicle has come to a complete stop.
Anyone else had this problem and potential fix?
Junior Member
Joined: Mar 2006
Posts: 20
Likes: 0
From: SoCal
2006 ML350
Mine does the same thing when it's cold. It also has a slip between 1st and 2nd when accelerating when cold. I've taken it in twice now and they seem to think it's normal. Normal my ***. I'm about ready to postal with em....
After a few miles it runs fine. To me it seems like it's just low on tranni fluid. I had a similar acting transmission and once I added a quart of fluid it was fine. Of course you can't even check the fluid yourself on these things.
I'm gonna try one more time when I take it for the 3000 mile service.
TFLG
After a few miles it runs fine. To me it seems like it's just low on tranni fluid. I had a similar acting transmission and once I added a quart of fluid it was fine. Of course you can't even check the fluid yourself on these things.
I'm gonna try one more time when I take it for the 3000 mile service.
TFLG
Newbie
Joined: Aug 2005
Posts: 9
Likes: 0
Hi,
This is exactly what I'm having as well. New valve body but still similar but not so bad rough downshift as before.
I think it is when the tranny shifts to 2nd gear. Also you can hear a not so loud loose "clunck" sound from the tranny direction when it makes the rough shift.
Before the valve body was replaced I think the rough downshift was harder and occured in lower speed than now.
My dealer also said "could dot reproduce, normal".
BR:Carl
This is exactly what I'm having as well. New valve body but still similar but not so bad rough downshift as before.
I think it is when the tranny shifts to 2nd gear. Also you can hear a not so loud loose "clunck" sound from the tranny direction when it makes the rough shift.
Before the valve body was replaced I think the rough downshift was harder and occured in lower speed than now.
My dealer also said "could dot reproduce, normal".
BR:Carl
Junior Member
Joined: Mar 2006
Posts: 20
Likes: 0
From: SoCal
2006 ML350
My dealer also said "normal, can't reproduce". I don't know how they can't reproduce it. Mine does it every start and every stop unless I brake very hard and then take off before coming to a complete stop. If I stop slowly, I get a clank and if I sit at a light for a miute I get that slip when I take off. It's just silly that they will not fix it.
Funny thing is that the dealer lost a sale over it. I car pool to work with 3 other engineers. One of them was also planning to buy a ML (He was planning on buying his before me but I got my tax refund first and beat him to the dealer). Once he drove for a week in my car and experienced the problem, he changed his mind and ended up with an X5. (I still the ML better than the X5).
TFLG
Funny thing is that the dealer lost a sale over it. I car pool to work with 3 other engineers. One of them was also planning to buy a ML (He was planning on buying his before me but I got my tax refund first and beat him to the dealer). Once he drove for a week in my car and experienced the problem, he changed his mind and ended up with an X5. (I still the ML better than the X5).
TFLG
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