BMW 7 Owners & Service Manuals
BMW 7 Series (F01/F02) 2008-2015 Service Manual / Body / Releasing Bonded Folded Seam Connections

BMW 7 Series: Releasing Bonded Folded Seam Connections

Body
Fig. 51: Releasing Bonded Folded Seam Connections

  • Remove area (1) of bead edge on wheel arch bend with a one-hand angle grinder and rough grinding wheel.
  • Heat area (2) with hot air blower.

CAUTION: Extract vapors and gases.

  • Release connection flange with chisel.
  • Grind adhesive residue (4) off wheel arch connection flange.

CAUTION: Wear a grinding dust mask.

  • Remove remnants of sealing material in area (3).

REPAIR SOLUTION FOR STRAIGHT SHANK/HEXAGON RIVET NUT

Protection measures!

  • Wear safety goggles
  • Wear protective gloves

IMPORTANT: To prevent the material from tapering, do not drill out the rivet head.

1. Carefully spot-drill rivet head with a larger drill bit/countersink

Body
Fig. 52: Drilling Rivet Head Using Larger Drill Bit/Countersink

IMPORTANT: Avoid paintwork damage

2. Knock rivet head away with a chisel

Body
Fig. 53: Knocking Rivet Head

3. Drive through rivet shank into cavity, remove if necessary

Body
Fig. 54: Identifying Rivet Shank

4. Clean component, eliminate paintwork damage if necessary

Body
Fig. 55: Identifying Component

If the rivet shank can be removed:

IMPORTANT: To avoid corrosion, stop chips/debris by means of cavity sealing.

Follow INSTRUCTIONS ON CORROSION PROTECTION.

5. Preserving cavity

Body
Fig. 56: Preserving Cavity

If the rivet shank cannot be removed:

WARNING: Risk of injury! Observe NOTES ON CAVITY FOAM.

IMPORTANT: To avoid corrosion and rattling noises, stop chips/debris and rivet nut shank with cavity foam.

Remove foam remnants with isohexane (benzine).

Body
Fig. 57: Preserving Cavity

  • Stop rivet shank by means of specific foaming
  • Set rivet nut with hand rivet gun

NOTE: Fit rivet nut as quickly as possibly, ideally before the cavity foam hardens.

Hexagon/straight shank rivet nut (up to thread M8) with hand rivet gun ZS308

IMPORTANT: Follow manufacturer's operating instructions.

Make sure rivet nut correctly contacts component.

Body
Fig. 58: Setting Rivet Nut With Hand Rivet Gun

Hexagon/straight shank rivet nut (up to thread M12) with hand rivet gun MB512

IMPORTANT: Follow manufacturer's operating instructions.

Make sure rivet nut correctly contacts component.

Body
Fig. 59: Setting Rivet Nut With Hand Rivet Gun

REPAIR TECHNIQUES, REPAIR STAGE 1

All work which provides only for replacement of screwed/bolted components and planishing operations.

Repair techniques

  • Straightening outer skin
  • Straightening aluminium parts
  • Straightening steel parts
  • Information on metal filler
  • Grinding
  • Grinding steel parts
  • Steel thread repairs

REPAIR TECHNIQUES, REPAIR STAGE 2

Repairs that are carried out by bonding and riveting without the use of a straightening bench.

Repair techniques

  • Removing used part
  • OPENING WELDED CONNECTIONS
  • OPENING BRAZED CONNECTIONS
  • OPENING RIVETED CONNECTION
  • OPENING ADHESIVE BONDS
  • GRINDING ALUMINIUM COMPONENTS
  • GRINDING STEEL COMPONENTS
  • REINFORCEMENT PLATE (BONDED)
  • METAL FILLER
  • OVERVIEW OF CONSUMABLES
  • Notes on adhesive: NOTES ON ADHESIVE K1; NOTES ON ADHESIVE K2; NOTES ON ADHESIVE K3; NOTES ON ADHESIVE K4 and NOTES ON ADHESIVE K5
  • BONDING ON PAINTED SURFACES
  • BLIND RIVETS
  • PUNCH RIVETS
  • INSTALLING A CAVITY SEALING WITH 2-COMPONENT PU CAVITY FOAM
  • EMC SCREWS
  • REPAIRING PLASTIC PARTS
  • BONDING GLASS PANES
  • BLIND RIVET NUTS AND BOLTS

REPAIR TECHNIQUES, REPAIR STAGE 3

Repairs that are carried out by bonding and riveting with the use of a straightening bench or welding.

Repair techniques

  • STRAIGHTENING ALUMINIUM COMPONENTS ON THE STRUCTURE
  • STRAIGHTENING STEEL COMPONENTS ON THE STRUCTURE
  • OPENING WELD JOINTS
  • OPENING BRAZED CONNECTIONS
  • OPENING RIVETED CONNECTIONS
  • OPENING BONDED CONNECTIONS
  • GRINDING ALUMINIUM COMPONENTS
  • GRINDING STEEL COMPONENTS
  • WELDING IN REINFORCEMENT PLATE (STEEL PLATE)
  • WELDING STEEL COMPONENTS
  • SPOT-WELD BONDING STEEL COMPONENTS
  • SOLDERING STEEL COMPONENTS
  • OVERVIEW OF CONSUMABLES
  • NOTES ON ADHESIVE
  • BONDING ALUMINIUM ON STEEL
  • BONDING STEEL ON STEEL
  • BLIND RIVETS
  • PUNCH RIVETS
  • INSTALLING A CAVITY SEALING WITH 2-COMPONENT PU CAVITY FOAM
  • EMC SCREWS

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