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The mkiv Supra Owners Club

Drivers seat removal - How to


DannyW

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Part way through removing my drivers seat to try and fix the electric adjustment that doesn't currently work properly and ive undone the 4 main bolts holding the seat down.

 

How do i get the last bolt out? (the one the goes in horizontally into the centre tunnel) the position of it is stopping me getting a spanner or socket on the bolt, how do you guys do it? :blink:

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Yes the seat is blocking access, i can get a ring spanner on it but then there is no room at all to turn it.

 

Is there a way to manually adjust the seat forwards? as the seat is currently as far back as it will go and the electric adjuster is boogered.

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How do you move the seat forward though if the electric adjuster is knackered?

 

There are two nuts behind the plastic guard at the front of the seat that you can turn using a socket set to move the seat back and forward but doing this with the motor still in place will probably strip the plastic cog that it turns. This doesn't really matter if your motor is knackered anyway but bear in mind a new one is about £250 from Toyota :blink:

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Doh! sorry i didn't read it properly....im not sure to be honest, but there is a way im sure....will try and find out!

 

Thanks mate, ive had a good look round underneath the seat but can't see a way to do it myself.

 

The reason im trying to get it out is to fix the electric adjuster, if there is a way to adjust it manually then i'll just do that and sod the electrics :)

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There are two nuts behind the plastic guard at the front of the seat that you can turn using a socket set to move the seat back and forward but doing this with the motor still in place will probably strip the plastic cog that it turns. This doesn't really matter if your motor is knackered anyway but bear in mind a new one is about £250 from Toyota :blink:

 

Well when i push the switch to move the seat forward i can hear the motor click and sort-of 'buzz' like it's trying to work. Oh well once its in the right position (only a couple of inches from the furthest back position) i guess i'll be happy and won't need to move it again.

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Well when i push the switch to move the seat forward i can hear the motor click and sort-of 'buzz' like it's trying to work. Oh well once its in the right position (only a couple of inches from the furthest back position) i guess i'll be happy and won't need to move it again.

 

Thats a bit like what mine did. I discovered that the seat had seized up a bit and someone had probably been trying to use the motor anyway which had eroded a groove in the jammed plastic cog. This meant that the corkscrew type bit didn't have anything to turn anymore so even when I got the runners moving freely the electric mechanism still didn't work. Try moving it with a socket set and see how much resistance there is.:)

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Right, managed to get the seat out by manually adjusting the seat forward to allow access to the last bolt. only thing now is that the backrest adjuster doesn't work now either! ive checked all connections and they are all still done up. Maybe the boltts holding the seat in earth the connections in some way?

 

 

Is there any way to adjust the backrest manually?

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  • 1 month later...

I've just pulled the driver's side seat after it was stuck to the rear. Getting the near side rear bolt out was a rear b*tch with the seat stuck to the rear. I used a 14mm open-ended wrench with my left hand to feel for the bolt. The top of my hand really started to hurt/cramp because I had my hand cocked upwards/inwards as far as it would go while trying to manupulate the wrench. It took me a good 20 minutes to get that last bolt out. I found that the seat motor wasn't the issue, but that as written above, the cog on the tunnel side runner appears to be stripped. Anybody had to replace one of these? While I was taking the seat out, I found that by taking out the front two bolts first, then doing the tunnel side rear, I was able to get the seat to move forward a few inches to allow access to the last two bolts and then unplug the two cables to remove the whole seat. Does anybody know the part number for the cog?

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Actually, it's neither mate. The motor and switches work fine once the tunnel side runner is unbolted. It's the plastic cog on the tunnel side runner that appears to be stripped. Once all bolts are removed freeing the seat from the floor, the door side runner moves freely. Here's another question for you guys: If the cog is what's stripped, will it matter if I adjust the tunnel side runner manually so that its alignment mirrors the door side runner for re-installation? I just don't want to destroy the motor.

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Here are some pictures of the driver's seat out. This first pic of the underside shows the locations of the four 14mm bolts on the frame mounts, which the sliders sit on. The upper right corner shows the 5th bolt vertical and to the left of the tunnel side rear bolt. Lower left side of the picture (the front when mounted) is the motor in silver. You can see the two plugs you have to undo in black and white, middle of the seat. The second and third pictures are what I think is the plastic cog that has worn out. It's actually a big block of plastic that incases the long screw that turns via the motor/cog normally.

seat removal 003 (Large).jpg

seat removal 004 (Large).jpg

seat removal 005 (Large).jpg

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