W163 power seats wiring or connector pinout

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DexterML

Active Member
Joined
Feb 4, 2022
Messages
99
Location
Portsmouth
Car
W163 ML270
As per the title, I am checking for power on the connector under the seats, but I can't get anything. Also there is non standard electrical coloring so no black or red/yellow wires, so I don't know which one should be the live or ground wires.
It is not a minor thing, I need to adjust the seat for safe driving position.

Any pinout diagram or wiring diagram would help..

Thank you all

2001 ML270 93500 miles
coolant warning light (fixed it)
Coolant leak..
Radio not on (Now fixed)
Lamella sunroof not fully opening (opened twice, small gray plastic bit broke off, not it wont' fully open, erratic operation)
BAS ESP light on (resetting, removing K25 etc, doesn't do anything for it)
Massive water leak, entire floor is soaking wet, even the glove box (!!?).
Driver's lock doesn't turn
Seat controls don't work
Brake switch maybe on the way out
FOBs don't lock/unlock (new batteries) (fixed, one works now, the second starts the car, but won't synch)
Brake discs need replacing all around
Front calipers seized (not sure, is it possible for a caliper to get unstuck when it cools down?)
bonnet struts broken (ordered)
Boot struts broken (now fixed)
running board only on one side
broken front bumper (AMG style ?)
Rust around tailgate handle
Rust under the doors.
faded bonnet
rear bumper off its clips
 
Update:

I found that the seat relay and the rear window heater relay (both identical) are extremely corroded. The pins on the fuse box for these relays are also extremely corroded, no doubt because of the massive leak from the lamella sunroof.

Is there a way to remove the foot well fuse box to clean the connections
Where do I buy the relays from other than MB, halfords doesn't seem to have them.

2001 ML270 93500 miles
coolant warning light (fixed it)
Coolant leak..
Radio not on (Now fixed)
Lamella sunroof not fully opening (opened twice, small gray plastic bit broke off, not it wont' fully open, erratic operation)
BAS ESP light on (resetting, removing K25 etc, doesn't do anything for it)
Massive water leak, entire floor is soaking wet, even the glove box (!!?).
Driver's lock doesn't turn (fixed it)
Drivers's lock locks driver's door but none other.
Passenger left rear lock won't lock on key or switch
Accelerator pedal a bit wobbly
Seat controls don't work
Brake switch maybe on the way out
FOBs don't lock/unlock (new batteries) (fixed, one works now, the second starts the car, but won't synch)
Brake discs need replacing all around
Front calipers seized (not sure, is it possible for a caliper to get unstuck when it cools down?)
bonnet struts broken (ordered)
Boot struts broken (now fixed)
running board only on one side
broken front bumper (AMG style ?)
Rust around tailgate handle
Rust under the doors.
faded bonnet
rear bumper off its clips
 
As per the title, I am checking for power on the connector under the seats, but I can't get anything. Also there is non standard electrical coloring so no black or red/yellow wires, so I don't know which one should be the live or ground wires.
It is not a minor thing, I need to adjust the seat for safe driving position.

Any pinout diagram or wiring diagram would help..

Thank you all

2001 ML270 93500 miles
coolant warning light (fixed it)
Coolant leak..
Radio not on (Now fixed)
Lamella sunroof not fully opening (opened twice, small gray plastic bit broke off, not it wont' fully open, erratic operation)
BAS ESP light on (resetting, removing K25 etc, doesn't do anything for it)
Massive water leak, entire floor is soaking wet, even the glove box (!!?).
Driver's lock doesn't turn
Seat controls don't work
Brake switch maybe on the way out
FOBs don't lock/unlock (new batteries) (fixed, one works now, the second starts the car, but won't synch)
Brake discs need replacing all around
Front calipers seized (not sure, is it possible for a caliper to get unstuck when it cools down?)
bonnet struts broken (ordered)
Boot struts broken (now fixed)
running board only on one side
broken front bumper (AMG style ?)
Rust around tailgate handle
Rust under the doors.
faded bonnet
rear bumper off its clips
possibly because of water.. the door switch stopped working .. pushing it in reverse made the seat go forward..and now it wont reverse... can it be jumped or how do I get the seat to reverse and move back to allow entry and seating in it
 
Why are you copying the list of faults each time you post?

Keeping it concise makes it easier to read. 👍
 
possibly because of water.. the door switch stopped working .. pushing it in reverse made the seat go forward..and now it wont reverse... can it be jumped or how do I get the seat to reverse and move back to allow entry and seating in it
Hi Klerini

Are you responding to me or are you asking a question of your own?
 

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