themotts

2010 S550, just picked up and went to adjust steering wheel. Power Up works but power down and in and out does not function. Was going to check fuses first but my understanding is that up & down is the same fuse and in & out is same.. Their is no noise from motors at all unless up is pressed so figuring fuses any additional wisdom would be great. don't want to articulate steering wheel any higher.

themotts

this was not about how to ...but misfunction, thanks guys!

Palmeroj

Mine is a 2011 and the steering column does not go in/out. Up/down works fine.

konigstiger

Could be motor (25 in diagram) or shaft (45) see attachments to get an idea of what is involved to inspect/repair/replace.

themotts

thank you for the diagram i will dig into this issue and give a follow up

themotts

checked fuses both good 47 & 48, have power up but no other function, kinda leaning towards switch since the motor runs on wheel up and doesn't on any other direction, opinions? thanks,

konigstiger

Revisit diagram there are two motors, 25 is the one of interest. Could be motor or associated shaft.

themotts

So i saw a post on reset procedures (i wish i could find the link) any ways commentor mentioned holding switch fully in the up position for ten seconds. at the time my wheel would only go up so i figured if it got "stuck" in the up position i would just drive a different car till i could get it to the shop. well i lift the switch up and nothing moved counted to 10 and magically the wheel would go down.. but still acts does not function normally. but i was able to get it into the correct height that i wanted. now terrified to move it again. so i guess if you have a similar issue hold switch in one direction for ten seconds might work. side note did not seem to help in out function by holding switch forward or back.

KOOKIEMUNCER

I have the same problem, I can hear the lifter is engaging for a sec when I pull the lever up, I think there's a spiral gear that drives the column up and down that might be worn out. Please let me know if you solve this, I will do the same here

KOOKIEMUNCER

Try extending the wheel all the way forward, then push up with your knee at the same time push the lever up, I heard that helped in some.cases

BOTUS

there's a distance calibration set up..... after its been played with (front or rear SAM update I think does it) you must go through max movement till it re-establishes limits...

KOOKIEMUNCER

How is that done excatly ?

BOTUS

just move the switch.... the guy did it with STAR but the car wanted it done by the user.... as that guy posted.... fully up down, in and out then it was all normal again and the memory worked

KOOKIEMUNCER

In my case I can hear the motor kicking in when I pull the lever up or down, I think it might be that spiral plastic gear that moves it up and down.
how hard is it to open the steering column?
I have tried holding it like you guys said but nothing happened
at this pothis dint want to mess with that because last thing I need to be stuck fully extended lol
its already in position for my tiny wife. Literally on my knees

BOTUS

Germans must be an odd shape

I have mine fully extended and turned off the move unnecessarily and break it feature the day I got the car... I'm 6'3" and 240lbs never once thought there wasn't room to get in or out... not much leg room to the pedals though !

u get far more on most cars

The Thomas J

Just so you know, that's a $3500 repair/

The Thomas J

I'll tell you what breaks these plastic bits. It's excessive weight and pressure, like using the steering wheel to assist in getting out of the car. I had ti break myself of this habit when I bought my first Mercedes. It's possible to replace the worm gear in the C-Class, and the E-Class. I don't know if it can be done in the S class. Mercedes just replaced the entire steering coloum.

Arrie

I have this problem and normal or any calibration does not work. Reason is the wheel up-down mechanism is jammed in the lowest position. In normal case for calibration you move it all the way up and all the way down and hold the switch at each end for a couple of seconds and the system finds it’s limits but this procedure is no help when the wheel is stuck in the lowest position and won’t move up at all.

BOTUS

that's not good ! yep, mine pre calibration (once it had lost the plot) only went up or more up till it was silly..... but once you hit the limit of up, the others come back in to play. Can you get it out of the stuck down, by trying a seat memory preset?

Arrie

It will not move. The motor tries when you first try to go down and then up. It just won’t move. It is stuck in place and this is quite common issue amongst these cars by what I have read in the forums.

I took the little motor out to check on it and it works and is strong.

slcbbrown

Mine goes in, out, and down but no up. A bit snug getting in and out. Think the "hold it up" fix might do something?