Preparing New Parts

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

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

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Remove adhesive residue from bonding surfaces.
Seal the hole (1) by MAG weld.
Drill out holes (2) to dia. 6.8 mm.

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

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Prepare areas (1) to (4) for structural bonding of steel on steel and of steel on aluminum.
In the areas (1) and (2), drill out holes of diameter 6.8 mm and transfer to 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 of dia. 6.8 mm. Number and position of flow-drill screws as for series.

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

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Prepare areas (1) and (2) for structural bonding of steel on aluminum.
In the areas (1) and (2) transfer hole pattern of wheel well on the spring support. Drill out holes to dia. 6.8 mm.

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Prepare area (1) for structural bonding of steel on aluminum.
In the areas (1), transfer hole pattern of engine bulkhead on the spring support. Drill out holes to dia. 6.8 mm.

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Prepare the areas (1) for plug-welding.
Weld the areas (1). Avoid excessive application of heat to adhesive area (2).

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Prepare area (1) for structural bonding of steel on aluminum.
In the areas (1), set 12 bores with 0 6.8 mm on the new parts analogue to the standard production.
Prepare areas (2) for structure bonding steel on steel.
In the areas (2), set 2 bores with 0 6.8 mm on the new parts analogue to the standard production.
Prepare areas (3) and (4) for steel on steel structure bonding.
In the areas (3) and (4), set 4 bores 0 4.2 mm as shown.

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Prepare the new part in the areas (1) for joining with MAG weld. The MAG weld seams have a length of = 15 mm.

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Remove the adhesive residue in the areas (1).
NOTE: TECHNICAL INFORMATION
For additional information see: 41 00...
Spot-weld bonding steel components
Prepare spot-welded adhesive joints for the series for joining by welding in the areas (1).
Remove new parts and deburr bores.

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- Check ground pins and replace if necessary
NOTE: Schematic diagram is for example purposes. Some parts may differ in certain details.
Check the ground pins (1) for stability and renew if necessary.

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