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Pelican Technical Article:

Power Seat Removal

Kerry Jonsson

Talent:

***

Tools:

T40 Torx bit with ratchet and extensions, Large Phillips head screwdriver

Applicable Models:

Mercedes-Benz R129 (1990-02)

Parts Required:

Seat cushion, seat frame

Hot Tip:

Have a battery charger on the car so you can leave on the ignition to move the seat

Performance Gain:

Repair broken seat, upholstery or non-functioning seat

Mercedes Benz developed a top of the line super car in 1990. This unique vehicle had such safety features as driver side airbag, passenger side airbag, seat belt retractors, automatic roll bar, etc. The seats are in integral part of the safety system. They are made of a Magnesium alloy and are strong enough to mount the seat belt to.

In this tech article we will go over all the steps to remove your seats from your vehicle either for replacement or repair.

This photo illustrates the front of the right side seat.
Figure 1

This photo illustrates the front of the right side seat. The seat removal procedure is the same for both the left and right side seats. Remove the two #3 Phillips head screws (green arrows) that hold the lower cushion onto the seat.

Lift up the front of the lower seat cushion and remove the seat cushion from the car.
Figure 2

Lift up the front of the lower seat cushion and remove the seat cushion from the car.

Turn the ignition key on and slide the seat all the way back.
Figure 3

Turn the ignition key on and slide the seat all the way back. This picture illustrates the outside edge of the seat out by the rocker panel. Remove the T40 Torx fastener that mounts the frame rail to the seat.

This picture illustrates the inner seat frame rail by the transmission tunnel.
Figure 4

This picture illustrates the inner seat frame rail by the transmission tunnel. Remove the T40 Torx fastener that holds the front inner rail to the body of the car.

Turn the ignition key on and move the seat all the way forward and tilt the seat back forward as well.
Figure 5

Turn the ignition key on and move the seat all the way forward and tilt the seat back forward as well. This picture illustrates behind the seat the inner frame rail up against the transmission tunnel. Remove the two T40 Torx fasteners (green arrows) that hold the back of the inner seat frame rail to the body of the car.

This picture illustrates the outer seat frame rail in the rear behind the seat.
Figure 6

This picture illustrates the outer seat frame rail in the rear behind the seat. Remove the two T40 Torx fasteners (green arrows) that mount the outer seat frame rail to the body of the car. You can now tilt the seat out and remove it from the car. The seat is heavy so get someone to help you to avoid scratching the interior. Installation is the reverse of the removal steps. Position the seat in the car with a helper and move the seat all the way forward. Install the 4 fasteners in the rear. Then slide the seat all the way backwards and install the two fasteners in the front on both the inner and outer frame rails. Install the back of the bottom seat cushion first and push down on the front of the cushion until it pops into place. Install the two holding pins and verify the seat moves back and forth without hitting anything under the seat.

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Comments and Suggestions:
Ray169 Comments: Must be different in 1998
Thanks anyway,
Ray169
March 29, 2017
  Followup from the Pelican Staff: Thanks for the follow up and the photo. - Nick at Pelican Parts  
Ray Comments: How to remove lower seat cushion on 1998 Mercedes sl 500
March 28, 2017
  Followup from the Pelican Staff: Our apologies but we do not have access to that vehicle to perform a tech write up. - Casey at Pelican Parts  
carnut3055 Comments: Thanks for this great set of instructions. They made a hard job much easier. I would have eventually found all of the mounting screws but knowing where to start made it so much easier.
March 25, 2015
  Followup from the Pelican Staff: Thanks for the feedback. Glad we could help.
- Nick at Pelican Parts
 

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Page last updated: Sat 4/29/2017 02:30:24 AM