Seat Cover Removal
If you need to swap base frames, change the upholstery or gain access to the seat airbag, you are going to need to remove the seat covers and foam.
The headrest is held in place with four clips that clip into the seat frame.
The top two clips are white and are very robust, the lower clips are black and seem
very fragile and will snap easily. You may want to get some replacements from smart.
Pull all four clips out, this can be made easier with a flat head screwdriver or upholstery tool.
This shows you the position of the holes in which the clips pass through.
As you can see, the white clips survive but the black clips don't.
Refitting is a case of reclipping the four clips back into the holes.
Seat Back Rest Removal
The back rest is mostly held in place with white clips, as before, these are very robust.
Just lever the clips out one by one using a screwdriver or upholstery tool. Do both sides.
If you have a side airbag you need to clip the plastic channel by pulling it free.
Take a look at the top of the seat that was hidden behind the headrest. You will see
six clips, three per side that pass around a thin metal bar passing through the fabric.
Lever the metal clips open slightly and unhook all six sections to free the top section.
At the bottom of the headrest is another clip the same as above.
Lever it open so the bar can come free of it, the back rest will now be loose.
Take a look at the back of the seat, right at the bottom. Again you will see a collection of
metal clips with a bar passing over the top. Lever the clips open (I used a wooden wedge).
Unclip the entire length of the bar from these clips.
The upholstery and foam will now be free to be removed from the seat.
Refitting is the reverse of the above information.
Seat Squab Removal
Look behind the base of the seat, you will see the upholstery is clipped in place.
Push the long continuous clip down and backwards to unclip from the metal base.
Along the two sides and the front is another continuous clip like before except this one is
sewn in behind the upholstery so you cannot see it. You can feel it under the upholstery
though so push it down all the way around the base and pull away from the base to unclip it.
This shows the metal lip that the clip holds on to all the way around the base.
Tucked in each corner where the backrest meets the lower section there are two smaller clips.
Again, these need pushing down to unclip and moving sideways and lifting to clear the frame.
The foam base is now clear to remove from the metal frame of the chair.
You will see that the frame has metal holes to allow any fluids out and allow the foam to breathe.
Again, refitting is the reverse of above.
The upholstery is glued directly to the foam, this allows the cloth to keep its shape.
Do not be tempted to pull the cloth off of the foam to wash it in a washing machine.
It is better to use proper upholstery cleaner and allow to dry in an airing cupboard.
If you fancy a change of upholstery colour, you can just change
the foam and cloth, you don't need to swap both of the seats over.
The seat metal shells are the same between the fortwo 450 and the Roadster, the Roadster,
however, has different shapped foam and upholstery. If you want the extra comfort and side
support that the Roadster seats have to offer, just change the foam and upholstery over.
Smart may even sell you new upholstery including the foam. Worth a try.