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.
Removing Carbon Fiber Reinforced Plastic Components Rep-Alg-RAI0141-4105307 - V.4
Required Special Tools:
- 2 355 747
- General information: WARNING: Observe notes for work safety. Refer to SAFETY AT WORK REP-ALG-RAGRP41-4102100 - V.6 !
Draw off dust, vapor and gases!
Use personal protective clothing/equipment.
Separate workbay by means of mobile partition walls or protective curtains.
Electrostatic charge may occur when working with Carbon Fiber Reinforced Plastic components. It is for this reason that the Carbon Fiber Reinforced Plastic chassis must be connected to ground before starting repair work. Attach the ground cable 2 355 747 at a place on the Carbon Fiber Reinforced Plastic chassis not visible to the customer. Connect other end of grounding wire via connector to ground of building.
Regularly clean the working area with a vacuum cleaner and wipe the surfaces with a damp cloth.
- Grinding of Carbon Fiber Reinforced Plastic components
Exclusively use tools approved for use with explosion-proof vacuum cleaners to grind carbon-fiber parts.
Use the largest possible vacuum cleaner hose diameter for maximum suction force.
Carbon Fiber Reinforced Plastic components are linked to each other by means of adhesive. This link can only be broken by grinding off the damaged Carbon Fiber Reinforced Plastic component in the area around the adhesive flange.
IMPORTANT: The use of INFRARED EMITTERS is not permitted!
Using infrared emitters, even inboard Carbon Fiber Reinforced Plastic components can be damaged due to the very high temperatures.Refer to the vehicle-specific repair instructions for the position of the adhesive areas.
- Application of the conical grinder:
The conical grinder is used for flat grinding applications.
Adjust grinding machine to grinding depth of approximately 1 mm. Grind off adhesive flange in several periods. The adhesive layer is reached when the color in the grinding area turns black. Finish grinding. It is crucial to avoid grinding through the adhesive.
- Application of the pencil sharpener:
The pencil sharpener is used for punctual grinding or for making up separation cuts.
Adjust grinding machine at the front side to the desired dimension a. Dimension a depends on the thickness of the Carbon Fiber Reinforced Plastic component to be separated.
Remove component residuals after grinding off all adhered areas.
- Application of the conical grinder:
- Surging of Carbon Fiber Reinforced Plastic components
Carbon Fiber Reinforced Plastic components can be separated by means of surging.
IMPORTANT: Surging may easily lead to damages of components in an area not visible.
These damages cannot be repaired!
Use saw only if the saw blade is completely visible during surging (e.g. when cutting a new part).
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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.