M-Class (W163) Produced 1998-2005: ML 230, ML 320, ML 350, ML 400 CDI, ML 430, ML 500, ML 270 CDI

my shufter is stuck on the plus side of the tronics

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Old 01-28-2012, 04:43 PM
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my shufter is stuck on the plus side of the tronics

i know when my shifter is in drive its suppose to stay in between the + and - but it doesnt shifter is stuck on the + side of the shifter and when i shift it to - it automaticaly, rapidly goes from 1 to d on the cluster. do i need to replace the whole mudual or can it be fixed?
Old 01-29-2012, 07:30 AM
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Have you or anyone accidentally spilled liquid from the cup holder onto the shifter?
Old 01-29-2012, 05:06 PM
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i bought it that way and didnt notice it till lata so im not sure.
Old 01-29-2012, 06:13 PM
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Take off the shifter cover and look inside and see if there are any signs of sticky liquid.

Remove the arm rest lid.
Remove stowage box.
Pry off shifter trim.
Remove window switch module.
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Old 01-30-2012, 02:14 PM
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ive done that and dont see anything the shifter moved back and forth but when u release it it stays on the + side
Old 01-30-2012, 03:58 PM
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When you tap the shifter to the negative side and hold it there, does the instrument cluster show the lower gear, but when you release it it returns to the "D" position?

If that is the case you have a problem with the electronic shifter circuit. I you want, you can remove the shifter, disassemble it and clean the board with electronic contact cleaner. I still say there was some spillage before you bought the truck which is preventing proper contact inside the shifter.
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Shifter One Touch.pdf (162.0 KB, 197 views)
Old 01-31-2012, 06:50 PM
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yes thats exactly what happens. but also when u release the shifter it doesnt stay in the middle it stays on the + side. will cleaning the circut board fix it? thanx for the pages with the diagram

Last edited by HEEMS; 02-01-2012 at 10:40 AM.

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