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Pelican Technical Article:

Seats Replacment

Steve Vernon

Time:

2 hours2 hrs

Tab:

$0

Talent:

**

Tools:

Trim removal tool, E12 socket, T45 Torx driver

Applicable Models:

Mercedes-Benz C250 (2012-14)
Mercedes-Benz C300 (2008-14)
Mercedes-Benz C350 (2008-14)

Hot Tip:

Have a vacuum ready for the carpet under the seats

Performance Gain:

Access to seat switches and components beneath seats

Complementary Modification:

Clean carpet and interior beneath seats

If you have to remove the seats from your Mercedes W204 to replace them or service components beneath them, this tech article I will show you how. I will break this article down into front and rear seats. Though there are a lot of options for different seats and configurations in the Mercedes C-Class the procedures are basically the same. Our project car had the flat rear bench seat with no split fold or pass through.

Front Seats- Start by moving your seat as far forward as it will go.
Figure 1

Front Seats: Start by moving your seat as far forward as it will go. Then, remove the two E12 Torx mounting fasteners at the seat rails (red arrows).

Front Seats- Next, you will have to remove the seat belt from the front seat.
Figure 2

Front Seats: Next, you will have to remove the seat belt from the front seat. Lever off the trim panel on the front seat to expose the seat belt fastener (red arrow).

Front Seats- Use a T45 Torx and remove the lower mounting point of the belt from the seat (red arrow).
Figure 3

Front Seats: Use a T45 Torx and remove the lower mounting point of the belt from the seat (red arrow).

Front Seats- The end of the belt has a nub or locater that needs to sit correctly into the mount in the seat (red arrow).
Figure 4

Front Seats: The end of the belt has a nub or locater that needs to sit correctly into the mount in the seat (red arrow). Make sure to locate this correctly when installing.

Front Seats- Once the seat belt, fasteners and trim are removed from your seat, move the seat all the way rearward to expose the seat module electrical connector and front mounting bolts.
Figure 5

Front Seats: Once the seat belt, fasteners and trim are removed from your seat, move the seat all the way rearward to expose the seat module electrical connector and front mounting bolts. Remove the two E12 Torx bolts from the front rails (red arrows).

Front Seats- Tilt the seat back and remove the three electrical connectors from the seat module (red arrows).
Figure 6

Front Seats: Tilt the seat back and remove the three electrical connectors from the seat module (red arrows). You can now carefully remove the seat from the car. Installation is the reverse of removal.

Rear Seat- Begin by removing the rear seat cushion.
Figure 7

Rear Seat: Begin by removing the rear seat cushion. There are two friction clips (red arrow) on each side of the bench; simply grab the bench at the front by the clips and pull straight up.

Rear Seat- With the bench lifted you can see the metal hoop attached to the bench that sits in a friction clip in the chassis (red arrow).
Figure 8

Rear Seat: With the bench lifted you can see the metal hoop attached to the bench that sits in a friction clip in the chassis (red arrow).

Rear Seat- There is a metal hook on the bottom of the bench that you cannot see but is approximately where the red arrow is on each side.
Figure 9

Rear Seat: There is a metal hook on the bottom of the bench that you cannot see but is approximately where the red arrow is on each side. Slide the bench back and lift up and then pull forward and remove the bench.

Rear Seat- On the rear seat back section use a T25 Torx and remove the Torx screw that holds the side of the seat back (red arrow, one on each side), and then remove the two 16mm nuts (yellow arrow, one shown).
Figure 10

Rear Seat: On the rear seat back section use a T25 Torx and remove the Torx screw that holds the side of the seat back (red arrow, one on each side), and then remove the two 16mm nuts (yellow arrow, one shown).

Rear Seat- Open the trunk and climb in.
Figure 11

Rear Seat: Open the trunk and climb in. You are going to use a flathead screwdriver to release the two latches. Insert the screwdriver into the two holes under the rear chassis cross member (red arrows), and slide the screwdriver to the left (yellow arrows). This will release the upper latches that hold the seat backs in place.

Rear Seat- You can now remove the seat back from the vehicle.
Figure 12

Rear Seat: You can now remove the seat back from the vehicle. This photo illustrates one of the two latches that hold the upper section of the seat back to the seats (red arrow). Installation is the reverse of removal.

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Comments and Suggestions:
spidermice Comments: sorry under the left seat
November 29, 2016
  Followup from the Pelican Staff: OK, got it. - Nick at Pelican Parts  
spidermice Comments: hi , how many rail cover are fitted under the right seat ?
I have none mounted .
rgds
November 29, 2016
  Followup from the Pelican Staff: Should be two trim pieces at the front covering the rails. - Nick at Pelican Parts  
Kay Comments: My seat has seat belt coming off Door not seat.
November 21, 2016
  Followup from the Pelican Staff: Thanks for the info. - Nick at Pelican Parts  
alan Comments: Just a heads up got the problem sorted changed the seat occupancy mat cleared the faults on OBD and hey presto no faults
hope this helps some one
October 31, 2016
  Followup from the Pelican Staff: Thanks for the follow up. We appreciate it.
- Nick at Pelican Parts
 
alan Comments: i have changed my seats in a 2008 w204 i had the airbag lights reset but and the passenger seat keeps showing an open circuit on open circuit on belt buckle and squib for side air bag,seat occupied recognition
fault codes:B275113,B005213,B1C1F13 can someone help me
October 24, 2016
  Followup from the Pelican Staff: Either the buckle or the wiring is faulty. - Nick at Pelican Parts  
Gr8estpapa Comments: How much. 2008 s550 leather
October 2, 2016
  Followup from the Pelican Staff: Give The Pelican Parts parts specialists a call at 1-888-280-7799. They can figure out what part or repair kit you need.
- Nick at Pelican Parts
 
Omar S. Comments: With regards to step # 6 and disconnecting the plugs that are located under the seat. A WORD OF CAUTION to NOT turn the ignition on while the seat is unplugged otherwise that particular seat will fail the SRS integrity check upon turning the key in the ignition, which would then require a trip to the dealer and and expensive bill to reset the light. In the meantime, and for the entire time that while the SRS light has not been reset/remains on, that particular seat if it is the passenger's seat, for example would have had all air bags that are associated with it turned off, which could present a dangerous situation if the SRS light is ignored or if it takes a while before resetting it.
March 20, 2016
  Followup from the Pelican Staff: Thanks for the additional info and feedback. We appreciate it.
The battery being disconnected before disconnecting would also. help. - Nick at Pelican Parts
 

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Page last updated: Wed 12/7/2016 02:58:22 AM