[Tim420es]

I have a 2008 420es TE. The rear wheels are locked, as in they wont spin. It will not move at all. If you turn the key, it indicates gear 4. The electronic shifting buttons will not do anything. The shift motor doesn’t make a sound unless you bypass everything and put leads directly to the terminals, then it will spin but still not change gear. When operating the manual 8mm gear shift shaft, you can feel the gears change, but the dash indicates “-“ for everything other than 4th gear. It will not recognize any other gears. Neutral light or reverse will not illuminate. Ive taken apart the shift motor assembly and made sure none of the teeth on the gears were worn. All bearings were in great shape also. Ive checked continuity between all wiring and everything seems great. The quad will only start and run in “gear 4” and not in “-“. I’m trying to decide whether its an internal transmission, gear position switch, or pcm issue. Angle switch has already been replaced. I had the 24 code and ran through the troubleshooting. It leads to the pcm as a last resort. Any ideas?

 

[fishfiles]

Sounds typical to me , it is a ES and it is F'ed Up ---- sounds like you are well verses in the ES , you know it can be converted to foot shift , might be easier , less headaches and money now and you won't have to worry about the next time it fails in the future

 

[Tim420es]

The problem is that none of the other gears will register on the screen. I don’t know if its in any other gear that 4th. Including neutral. No green light for neutral

 

[fishfiles]

I don''t own a ES , but have read many threads and have friends that have had them , the common recommendations are cleaning every plug then dielectric grease them , removing the shift motor and cleaning the shaft and re-greasing it , replacing the angle sensors , multiple times , even if you just changed it , it can be bad ----- my buddy messed around with one he had for a couple of months , then bit the bullet and took it to the dealer , $800 later , it ran for about 3 trips and went back to do the same thing , he sold it for pretty much what he spent himself and the dealer cost --- they can be a money pit , I would convert it or sell it