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.
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HOMESERVICE MANUALSBMW2013128I 2D CONVERTIBLE, ENG CD N52, STANDARD TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 2432 (COLLISION - BODY PANEL REPAIR (F12) CONVERTIBLE)BODY REPAIR GENERAL INFORMATION41 00... BONDING STEEL ON STEEL
2013 BMW 128i 2D Convertible, Eng CD N52, Standard Trans
41 00... Bonding Steel On Steel
2013 BMW 128i 2D Convertible, Eng CD N52, Standard TransSECTION 41 00... Bonding Steel On Steel
WARNING: This page does not describe the selected car, but rather 33 other vehicles, including the 2018 BMW M6, 2018 BMW 650i xDrive, 2018 BMW 650i, 2018 BMW 640i xDrive, and 2018 BMW 640i. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
These repair instructions apply to structural components.
Such components include engine supports, A-pillars, B-pillars, etc.
Follow the vehicle-specific repair instructions.
Only use the repair procedures described there.
Conform with safety regulations! See 41 00... SAFETY AT WORK and 41 00... INFORMATION ON HAZARDS .
Such components include engine supports, A-pillars, B-pillars, etc.
Follow the vehicle-specific repair instructions.
Only use the repair procedures described there.
Conform with safety regulations! See 41 00... SAFETY AT WORK and 41 00... INFORMATION ON HAZARDS .
Overview of topics:
- Equipment
- Preparing the surface
- Bonding coat
- Hardening times
- Subsequent treatment
- 1.0 Equipment
- Sandpaper
- Cleaning agent R1. See 41 00... OVERVIEW OF CONSUMABLES (Cleaning agent).
- Adhesive K1. See 41 00... OVERVIEW OF CONSUMABLES (1.0 Adhesives).
- Cartridge gun. See 41 00... OVERVIEW OF ADHESIVE CARTRIDGE GUNS .
- 2.0 Preparing the surface:
- For better adhesion, remove oxide film and paint from the adhesive areas with a stainless steel wire brush or special sandpaper.
- Clean bonding surfaces with cleaning agent R1.
- Allow cleaned surfaces to dry for approx. 5 minutes.
Bonding surfaces must be completely dry.
- 3.0 Adhesive application:
- Processing temperature of glue cartridge 18°C - 30°C.
- Object temperature, vehicle and new parts, min. 15°C.
- After applying the adhesive, check whether an adhesive component has emerged at the back of the glue cartridge. If yes, break off the bonding procedure. Clean new part. Use new glue cartridge. Contact national hotline.
- Join components and secure in position.
- Remove excess adhesive. Do not use solvent cleaning agents.
40 Hardening times:
- Refer to 41 00... NOTES ON ADHESIVE K1 .
- 5.0 Subsequent treatment of bonding surfaces:
- Protect the repair area with cavity sealant.
RENDER: 1.0x
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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.