Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Separating Cut Determination With A Template (M3 Base, M3 Competition, M3 Competition M xDrive, M3 CS)
In the case of a partial replacement piece, a body part is cut at a point described in the repair instructions
A template may be used for the exact position determination for the separating cut
The template is made from the reinforcement plate and can be reused
Carry over schematic diagram at the separation cut C-pillar to the relevant vehicle type
Remove stud bolts (1)
Set 4 mm dia. bores at the positions of the removed stud bolts
If applicable, place additional bores in the edge area
Insert the template (1) into the new part (in arrow direction) until it is flush (without gap)
Carry over the positions of the holes (2) to the new part
Remove reinforcement plate again
Connect marks (positions of holes) to the separating cut line (1)
Carry out the separating cut
Tear and separate the separating cut on the vehicle according to the new part
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.