Door Open Vehicle Not in Park
"Door Open Vehicle Not In Park"
"Drive To Workshop Without Shifting Gears"
I have a new battery and new auxiliary battery (OEM).
Fault code P179D85 - The redundancy system for DIRECT SELECT was activated. There is a signal above the permissible limit value
The car starts fine but now I cannot shift it into gears, i.e., drive, reverse, or neutral.
Any suggestions?
2011 ML350
Thanks in advance




Last edited by BlackML550; Jan 4, 2025 at 07:07 AM.
china module is ok but may not always work. you will need computer to do adaptations once ISM is replaced
something like this
https://www.ebay.com/itm/18683418728...3ABFBM9omx2IZl
basically what happens car has electronic module that shifts ur transmission when it fails lever on steering wheal does nothing and car can not shift to drive or park or whatever, so now ur car things say u r in drive and u opend ur door so u geting that message (you can be actualy parked) based on code you posted varistor values are outside range so transmission module does not know where motor turned it to so it stops module form working (shifting) module can not re re learned so it may even be operable but once something does wrong its a brick (unless you have physical damage and it felt off transmissions ... which nearly impossible )
or whatever u find cheaper just be ready to have something to do programing and adaptation when u install it
Last edited by alexus; Jan 5, 2025 at 03:48 AM.
https://mbworld.org/forums/m-class-w...tuck-park.html
yea similar thread
did u fix car?
ISM can be replaced by jacking car, you need to remove 1 shield and probably damage original ISM but new one can be positioned in. also if u remove old u can put neuteral manually (under car) and push it somewhere if needed
once new ISM installed need to program it, i used Autel at that time as my start got stolen
( it wpked ok,,, i had to order part twice as 1st one off ebat had problems programming, 2nd one was ok
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