Power Seat Broken
Thread Starter
Junior Member
Joined: Oct 2002
Posts: 66
Likes: 0
From: San Francisco
01 CLK430
Power Seat Broken
My passenger power seat suddenly stopped working. All seat functions do not move the seat nor does the lever to gain access to rear seats.
I'm thinking this is something electrical. Anyone know where to start or where the fuse is for the passenger side seat motors?
Thanks in advance.
I'm thinking this is something electrical. Anyone know where to start or where the fuse is for the passenger side seat motors?
Thanks in advance.
Member
Joined: Jun 2010
Posts: 195
Likes: 0
From: San Diego
02 CLK430
So the seat itself does not move fore/aft? Does the backrest move with the switch (not to gain access to the rear)? If just the fore/aft does not work for the actual seat, check the rear fuse box (by battery in the rear, under the spare tire cover). More than likely one of the 25A fuses are blown. If the fuse is blown, it means the fore/aft motor is starting to go (pulls too many amps due to worn windings), and will need to be replaced. Luckily the motor is available seperately, you use to be able to only get it with the whole seat frame.
Thread Starter
Junior Member
Joined: Oct 2002
Posts: 66
Likes: 0
From: San Francisco
01 CLK430
So the seat itself does not move fore/aft? Does the backrest move with the switch (not to gain access to the rear)? If just the fore/aft does not work for the actual seat, check the rear fuse box (by battery in the rear, under the spare tire cover). More than likely one of the 25A fuses are blown. If the fuse is blown, it means the fore/aft motor is starting to go (pulls too many amps due to worn windings), and will need to be replaced. Luckily the motor is available seperately, you use to be able to only get it with the whole seat frame.
Member
Joined: Jun 2010
Posts: 195
Likes: 0
From: San Diego
02 CLK430
Is the plug for the seat motors plugged in? Sometimes stuff gets under the seat and can cause the plugs for the motors to come undone/broken. There should be a seperate fuse for fore/aft, backrest. Do you have memory buttons for the RF seat? If you do, does the seat adjust when holding down any of the memory buttons? As fo motor life, mileage doesnt really come into play for them....more so the amount of adjusting them and or rear seat entry.
Thread Starter
Junior Member
Joined: Oct 2002
Posts: 66
Likes: 0
From: San Francisco
01 CLK430
Is the plug for the seat motors plugged in? Sometimes stuff gets under the seat and can cause the plugs for the motors to come undone/broken. There should be a seperate fuse for fore/aft, backrest. Do you have memory buttons for the RF seat? If you do, does the seat adjust when holding down any of the memory buttons? As fo motor life, mileage doesnt really come into play for them....more so the amount of adjusting them and or rear seat entry.
Thread Starter
Junior Member
Joined: Oct 2002
Posts: 66
Likes: 0
From: San Francisco
01 CLK430
Not the Fuses
Is the plug for the seat motors plugged in? Sometimes stuff gets under the seat and can cause the plugs for the motors to come undone/broken. There should be a seperate fuse for fore/aft, backrest. Do you have memory buttons for the RF seat? If you do, does the seat adjust when holding down any of the memory buttons? As fo motor life, mileage doesnt really come into play for them....more so the amount of adjusting them and or rear seat entry.
Any other thoughts before taking it in for diagnostics?
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MBWorld Fanatic!
Joined: May 2007
Posts: 1,435
Likes: 0
From: Nebraska
99CLK320,
you may have to remove the seat to get to it but, you could hook a direct 12v power source to the motor to see if it even runs. also, if you do, smell the motor for a whiff of burnt electric.
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