When I turn the key all the way to crank, my passenger seat begins to move back. It will do this as long as I hold down the key....how are these related??? I can usually figure out some logic to these problems but this one stumps me.

Thanks in advance for any help!

__________________
Dan
2005 E320 CDI - 246k
1987 300SDL TD05-16g, Herlevi pump, Elbe manifold, 2.47 LSD - 213k
Past: 1987 300D - 264k

Its possible that the seat is intimidated by the mighty OM603 and is backing away....


I imagine that would be a grounding problem or a shorted wire somewhere....the power seats have relays in the fuse box.

Tracking that down could be fun...

Can always just unplug the power cable under the seat from the motors if you don't need to move the seat often.

__________________
-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

I don't know what the power seat diodes do but things go crazy when the diodes go bad.

Sixto
MB-less

Are they memory seats or non-memory?

__________________
-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

They are memory. I was thinking that maybe on of the settings was stuck or something? I don't really use the settings so maybe I can try to unplug the battery and see if resetting it changes anything.

__________________
Dan
2005 E320 CDI - 246k
1987 300SDL TD05-16g, Herlevi pump, Elbe manifold, 2.47 LSD - 213k
Past: 1987 300D - 264k

Was there any solution to this problem found?

Inexplicably my driver's seat started doing this yesterday, moves backbwhile cranking the key snd anlso my seat memory no longer works.

Is this in the switch, motor, diodes etc? No idea how yhe seats are tied into the ignition system to create a cross bet5them.

TIA

__________________
Stable Mates:
1987 300TD 310K mi (Hans)
2008 Jeep Grand Cherokee OM642 165k mi (Benzrokee)

check your grounds

Thanks Chris,

Will do. Do you know where the seat motor pack harness grounds typically are?

__________________
Stable Mates:
1987 300TD 310K mi (Hans)
2008 Jeep Grand Cherokee OM642 165k mi (Benzrokee)