2021 BMW M2 Automatic DCT TransFACTORY OEM SERVICE PROCEDURE

Completely Replacing Left Carrier Support

When replacing the right carrier support, follow the special procedure concerning the vehicle identification number, (order new body part with vehicle identification number if necessary)

Read contents of BODY, GENERALΒ .

Follow procedure for REPAIR STAGE 2Β .

STRIP DOWNΒ  vehicle.

Following new body parts are required (see Electronic Parts Catalogue):

  • (1) Carrier support, outer wheel arch section
  • (2) Wheel arch inner section support member
  • (3) Carrier support end plate

Following CONSUMABLESΒ  are required:

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Material Quantity
Adhesive K1 1
Blind rivet N1 4
Blind rivet N7 5
Punch rivets N5 56
Sealant D1 1
Cleaning agent R1 1

Removal:Β 

Open welded connections in areas (1).

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Open weld joint in area (1).

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Mark severance cut (1) as pictured and cut off carrier support.

Open weld connections in area (2) and remove outer part of carrier support.

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NOTE: Concealed welding spots!
In areas (1), undo welded connections for both external panels.
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Release welded connections in area (1) and remove sheet section (2).

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Preparation of new part:Β 

Release welded connections and take off components (1) and (2) that are not required.

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Adjust new parts with add-on parts to fit and secure.

Areas (1) and (2): join using bond-and-rivet method.

In area (1), drill a 6.8 mm dia. bore hole for blind rivet N1.

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Areas (1) and (2): join using bond-and-rivet method.

In areas (1) and (2), set 8 6.8 mm diameter bore holes for blind rivets.

Prepare areas (3) for joints by welding.

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Areas (1) to (3): join using bond-and-rivet method, (punch rivets)

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In area (1), prepare new part/engine support for plug-welding.

Area (2): join using bond-and-rivet method.

Remove new parts.

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Attention!Β 

Structure bonding!

OBSERVEΒ  preparation of bonding surfaces.

Installation:Β 

Clean all bonding surfaces with cleaning agent R1.

Apply adhesive to bonding surfaces.

Install and secure inside part of carrier support (new part) with add-on parts.

In area (1), rivet new part with blind rivet N1.

In area (2) rivet new part with 4 punch rivets N5.

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In areas (1) weld new para.

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Install and secure outside part of carrier support (new part).

In areas (1) and (2), rivet new part with blind rivets.

Area Remarks
1 N1
2 N7
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In areas (3) weld new part.

Attention!Β 

Risk of damage!

Avoid excessive application of heat to adjacent adhesive areas.

In areas (1) to (3), rivet new part with punch rivets N5.

Area Number
1 22
2 15
3 3
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NOTE: Do not seal new parts in adhesive rivet areas (1) and (2). (Field of view)

Install and secure carrier support end plate.

In areas (2), rivet new part with 12 punch rivets N5.

Weld new part in area (1).

Attention!Β 

Risk of damage to adhesive area!

Avoid applying excessive heat to the neighboring adhesive areas!

NOTE: Do not seal new parts in the area of the adhesive riveting. (Field of view)
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Remove excess adhesive.

Do not use any cleaning agents containing solvents.

Factory Service Tools

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:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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