New part preparation

Operation is partially described on the left side. Right side identical.

NOTE: On vehicles with a sensor for lane change warning See 51 12 825 REMOVING AND INSTALLING/REPLACING GUIDE FOR REAR CENTRE BUMPER or 66 32 020 REMOVING AND INSTALLING/REPLACING SENSOR FOR LANE CHANGE WARNING , also check the bumper guide for correct seating.

IMPORTANT: Version with automatic tailgate activation:
Risk of damage to spindle drive: only move rear lid slowly by hand.
Mark severance cut (1) at edge and remove sheet metal flange (2).
Open weld joints in area (3) and remove component (4).

NOTE: Rear trim panel is only bonded in area (3).
Riveting is not necessary.

Fig 1: Identifying Severance Cut, Sheet Metal Flange, Weld Joints In Area And Component

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Adjust new parts to fit and secure.

In areas (1) and (2) set 4.2 mm dia. holes for blind rivets :

Area (1): 9 bore holes

Area (2): 1 hole on each side

Fig 2: Identifying Blind Rivet Bore Hole Area

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Make sheet metal angle in accordance with specified dimensions.

Dimension a = approx. 20 - 25 mm

Dimension b = approx. 20 - 25 mm

Dimension c = approx. 30 mm

NOTE: Adapt sheet metal angle to respective shape of installation location.

Fig 3: Identifying Sheet Metal Angle Specified Dimensions

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Adapt sheet metal angle (1).

In areas (1) to (3), set 4.2 mm dia. holes for blind rivets:

Area (1): 2 bore holes

Area (2): 1 bore hole

Area (3): 4 bore holes

Fig 4: Identifying Blind Rivets Bore Hole Areas

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In areas (1) to (4) set 4.2 mm dia. bore holes for blind rivets:

Area	Number
1	9 (total)
2	2
3	3
4	10

Remove rear trim panel outer skin .

Fig 5: Identifying Blind Rivets Bore Hole Areas

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Fig 6: Identifying Sheet Metal Angle

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Adapt sheet metal angle (1).

For each sheet metal angle set two 4.2 mm dia. holes for blind rivets.

Remove inner rear trim panel. Deburr all bore holes.

IMPORTANT: Do not grind new parts and body in area of bonding surfaces.

Installing rear trim panel

Operation is partially described on the left side. Right side identical.

Clean all bonding surfaces on new part and on vehicle with cleaning agent R1.

Apply adhesive to bonding surfaces (1).

When inserting rear trim panel, make sure there is sufficient adhesive on bonding surfaces.

Fig 7: Identifying Sheet Metal Angle

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Fit inner rear trim panel and rivet with sheet metal angle (1).

Fit outer rear trim panel and secure.

Rivet new part in areas (1) and (2).

Fig 8: Identifying Blind Rivet Bore Hole Area

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Fit sheet metal angle (1).

Rivet new parts in areas (1) to (3).

Fig 9: Identifying Sheet Metal Angle And Blind Rivets Area

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Rivet new parts in areas (1) to (4).

Fig 10: Identifying Blind Rivets Bore Hole Areas

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Fig 11: Identifying N4 Rivets Area

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Use punch rivets N4 in areas (1) and (2):

Area	Number
1	7
2	17

IMPORTANT: No blind rivets may be used in areas (4)! Areas (4) = 10 cm

Press rear trim panel in areas (1) and remove emerging adhesive.

Then install carrier for bumper trim to secure rear trim panel carrier.

IMPORTANT: Prevent emerging adhesive from coming into contact with crossmember!
Do not use any cleaning agents containing solvents.

Fig 12: Identifying Rear Trim Panel In Areas

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Fig 13: Identifying EMC Screws

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After hardening of the adhesive install 10 EMC SCREWS in the areas (1).

After hardening of the adhesive, install 4 EMC screws in the areas (1).

Fig 14: Identifying EMC Screws In Areas

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