2026-08-10

C-Pillar Lower Extension

Correction code: 10100126502 10100126602 NOTE: Unless explicitly stated in the procedure, the above correction code includes all Collision Repair and Service repair work required to perform this procedure, including the linked Collision Repair procedures and linked Service procedures. Do not stack Collision Repair correction codes unless explicitly told to do so. Depending on the damage to the vehicle, additional repairs may be required.

Repair Information

Review all collision repair general practices and safety documentation and wear the appropriate PPE (Personal Protective Equipment) before beginning this procedure.
This procedure can be completed without using a frame bench.

Parts List


Quantity	Description	Image / Notes
1	ASY - PNL C-PLR LWR EXTN (C-Pillar Lower Extension)
11	Countersunk Rivet, 4.8 mm Short
1	Flow Form Rivet S38
21	SPR, 5x4
1	SPR, 5x4.5
6	SPR, 5x5
14	SPR, 5x6 H4

When ordering parts, refer to the Parts Catalog and enter the VIN of the vehicle being repaired to find the correct parts (and the part numbers) for the vehicle. Alternatively, use the search function in the Parts Catalog to find a specific part for the vehicle.

Repair Procedure

Remove the Glass - Rear Quarter Window - LH (Remove and Install).
Remove the Racetrack Trim - Lower - LH (Remove and Replace).
Remove the Racetrack Trim - Rear - LH (Remove and Replace).
Remove the Wheel Arch Liner - Rear - LH (Remove and Replace).
Remove the Garnish - Fender - Rear - LH (Remove and Replace).
Remove the Seal - Primary - Rear Door - LH (Remove and Replace).
Remove the Carrier - Rocker Panel - LH (Remove and Replace).
Remove the original component.
or Factory Spot Welds
or Drill through factory spot welds
Note
When drilling out spot welds, use a drill bit that creates a hole correctly sized for the fastener that will replace the spot weld.

or Factory laser welds
Prepare for installation.

Note
A red X indicates a location where a factory-installed fastener is not being replaced. Secure this location using structural adhesive only.

or Countersunk Rivets, 4.8 mm Short
Note
Install the countersunk rivets on the joint between the new component and the Rear Quarter Outer panel in the center of the area where the new component and the underlying panel overlap (as shown in the reference image). Measure the amount of overlap between the new component and the underlying portion of the Rear Quarter Outer, then mark the countersunk rivet locations based on the amount of panel overlap.

or Flow Form Rivets, S38

or SPRs, 5x4
Note
The following Tesla SPR die is required to install this SPR: KA 075 2113.

or SPRs, 5x4.5
Note
The following Tesla SPR die is required to install this SPR: KA 075 2113.

or SPRs, 5x5
Note
The following Tesla SPR die is required to install this SPR: KA 075 2113.

or SPRs, 5x6 H4
Note
The following Tesla SPR die is required to install this SPR: SM 085 0125.
Apply structural adhesive to the mating surfaces on the vehicle and the new component or components.
Install the new component or components.
Perform any necessary post-repair operations.
Install the Carrier - Rocker Panel - LH (Remove and Replace).
Install the Seal - Primary - Rear Door - LH (Remove and Replace).
Install the Garnish - Fender - Rear - LH (Remove and Replace).
Install the Wheel Arch Liner - Rear - LH (Remove and Replace).
Install the Racetrack Trim - Rear - LH (Remove and Replace).
Install the Racetrack Trim - Lower - LH (Remove and Replace).
Install the Glass - Rear Quarter Window - LH (Remove and Install).