Preparing New Part

NOTE: TECHNICAL INFORMATION
Structural adhesive bonding .
Observe preparation of bonding surfaces.
For additional information see: 41 00... BMW bonding instructions

Release the bonded rivet connections in the areas (1) and remove the connecting plate (2).

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Remove adhesive residue on the bonding surface (1) of the shock tower. Do not damage the shock tower!
Prepare areas (1) for a structural adhesive bonding of aluminum to aluminum.
Remove adhesive residue from all other bonding surfaces.

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Seal the hole (1) by MAG weld.
Drill out holes (2) to dia. 6.8 mm.

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Adjust new parts with an alignment bracket or a universal fixture and secure.
Prepare the reinforcement (1) in area (2) for joining by welding.

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Prepare areas (1) to (4) for a structural adhesive bonding of steel on steel and steel on aluminum.
In areas (1) and (2), drill out holes of 0 6.8 mm and transfer them onto the new part.
In the area (3), transfer holes to both the new parts. Drill out holes to dia. 6.8 mm.
In the area (4), drill holes to 0 6.8 mm. Select the number and position according to the self-tapping screws of the series.

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Prepare areas (1) for the structural adhesive bonding of steel to aluminum.
In areas (1), drill out holes of 0 6.8 mm and transfer to the new part.

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Prepare areas (1) and (2) for a structural adhesive bonding of aluminum to aluminum.
In areas (1) and (2), drill out holes of 0 6.8 mm and transfer them onto the new part.

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Prepare area (1) for a structural adhesive bonding of steel to aluminum.
In areas (1), drill out holes of 0 6.8 mm and transfer to the new part.

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Prepare bonding surfaces.
- Welding the ground pin and the coarse thread bolt onto the reinforcement of the engine mount
NOTE: Schematic diagram is for example purposes. Some parts may differ in certain details.
Take the quantity and position from the component to be replaced.
Weld the ground pin (1) and coarse thread bolt (2) onto the new part.

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Preparing the aluminum surface (used part) for bonding
Remove coarse contamination from the bonding surfaces using solvent cleaner R2.
CONSUMABLE SPECIFICATION

Cleaning agent R2 500 ml 83190417324
Clean the bonding surfaces using solvent cleaner R1.
CONSUMABLE SPECIFICATION

Cleaning agent R1 100 ml, Bottle 83192211217
Clear bonding surfaces from oxide layers and/or paint using an stainless-steel wire brush or sandpaper with 120 grain.
The surface must be metallically bright.
Clean the bonding surfaces using solvent cleaner R1.
CONSUMABLE SPECIFICATION

Cleaning agent R1 100 ml, Bottle 83192211217
Allow cleaned surfaces to dry for approximately 5 min.
Bonding surfaces must be completely dry.
- Preparing the aluminum surface (new part) for bonding
Do not sand the bonding surfaces.
Remove coarse contamination from the bonding surfaces using cleaning agent R2.
CONSUMABLE SPECIFICATION

Cleaning agent R2 500 ml 83190417324
Clean bonding surface (1) with the cleaning agent R1. Adhere to the air drying time of 2 min!
CONSUMABLE SPECIFICATION

Cleaning agent R1 100 ml, Bottle 83192211217
- Prepare the steel surface (used part and new part) for structural adhesive bonding
Remove coarse contamination from the bonding surfaces using solvent cleaner R2.
CONSUMABLE SPECIFICATION

Cleaning agent R2 500 ml 83190417324
Clean the bonding surfaces using solvent cleaner R1.
CONSUMABLE SPECIFICATION

Cleaning agent R1 100 ml, Bottle 83192211217
Grind the bonding surface down to the bare metal.
Clean the bonding surface with cleaning agent R1.
CONSUMABLE SPECIFICATION

Cleaning agent R1 100 ml, Bottle 83192211217