Install and weld in B-pillar - AR63.20-P-1350-06CW

WARNING: This page is about a different car, the 2011 Mercedes-Benz C300, 2010 Mercedes-Benz C300, 2009 Mercedes-Benz C300, and 2008 Mercedes-Benz C300. However, it is still accessible from the selected car via links, so may be relevant.

Dimensions:

Fig 1: Identifying Dimensions For Rivet Holes On B-Pillar

Courtesy of MERCEDES-BENZ USA

The following operation steps are shown on model 204.0.

Set up side portal frame.
Observe setup plans.
Install B-pillar (2) and side longitudinal member (3), fit and fix in place with welding device.
Use spacer panel of check and welding device on B-pillar (2). See setup plans.
Scribe rivet holes on B-pillar (2) (area A₁ ).
Center punch rivet holes on B-pillar (2) (area A₁ ).
Dimensions:

Fig 2: Identifying Dimensions For Punching Rivet Holes On B-Pillar
Courtesy of MERCEDES-BENZ USA
Scribe rivet holes on B-pillar (2) (area B₁ ).
Center punch rivet holes on B-pillar (2) (area B₁ ).

Fig 3: Identifying Drill Areas On B-Pillar
Courtesy of MERCEDES-BENZ USA
Drill rivet holes on B-pillar (2) and side longitudinal member (3) with BTR Usibor drill bit, Ø 6.7 mm (areas A, B, C and D).
Countersink rivet holes on B-pillar (2) (areas B and D).
Remove welding device, B-pillar (2) and side longitudinal member (3).
When installing B-pillar (2) without side longitudinal member (3) only remove B-pillar (2).
Deburr rivet holes on both sides

Fig 4: Identifying Side Longitudinal Member Spot Weld Areas
Courtesy of MERCEDES-BENZ USA
Apply 2-component adhesive material in crosshatched areas.
Refer to manufacturer specifications for adhesive curing and application times.
Install side longitudinal member (3), fit and fix in place.
In order to ensure the required minimum strength for the weld, position new resistance spot welds exactly in the position as the resistance spot weld made at the factory, because this area was glued previously (area F).
Side longitudinal member (3) (areas E and F).
Side longitudinal member (3) (areas G and H).
Grind inert gas welds down flat on contact surface and coat with zinc dust paint.
Apply 2-component adhesive material in crosshatched areas.
Refer to manufacturer specifications for adhesive curing and application times.

Fig 5: Identifying B-Pillar Adhesive Application Areas
Courtesy of MERCEDES-BENZ USA

Fig 6: Identifying Rivet Areas On B-Pillar
Courtesy of MERCEDES-BENZ USA
Install B-pillar, fix and fix in place with welding device.
Observe setup plans.

Use spacer panel of check and welding device on B-pillar (2).

See setup plans.
Rivet B-pillar (2) with Ø 6.5 x12.5 steel/steel blind rivet (areas I and L).
Rivet B-pillar (2) with Polygrip countersunk head rivet, Ø 6.4 x14 (areas J and K).
Remove welding device.
Install outer B-pillar (1) and side longitudinal member sections (4.1 and 4.2), fit and fix in place with welding device.
Observe setup plans.

When installing outer B-pillar (1) without side longitudinal member (3), sections of outer side longitudinal member (4.1 and 4.2) are not required.
Drill rivet holes on outer B-pillar (1) and sections of outer side longitudinal member (4.1 and 4.2) with BTR Usibor drill bit, Ø 6.7 mm (areas M, N and O).

Fig 7: Identifying Outer B-Pillar And Outer Side Longitudinal Member Drill Areas
Courtesy of MERCEDES-BENZ USA

When installing outer B-pillar (1) without side longitudinal member (3), areas (M and O) are not required.
Remove welding device, outer B-pillar (1) and outer side longitudinal member sections (4.1 and 4.2).
Deburr rivet holes on both sides.

Fig 8: Identifying Outer B-Pillar And Outer Side Longitudinal Member Rivet & Weld Areas
Courtesy of MERCEDES-BENZ USA
Apply 2-component adhesive material in crosshatched areas.
Refer to manufacturer specifications for adhesive curing and application times.
Install outer B-pillar (1) and outer side longitudinal member sections (4.1 and 4.2), fit and fix in place with welding device.
Outer B-pillar (1) and sections of outer side longitudinal member (4.1 and 4.2) (areas S, T, U, V, W, X, Y and Z).
When installing outer B-pillar (1) without side longitudinal member (3), areas S and Z are no longer required.
Rivet outer B-pillar (1) and outer side longitudinal member sections (4.1 and 4.2) with Polygrip Ø 6.4 x14 flat/round head rivet (areas P, Q and R).
When installing outer B-pillar (1) without side longitudinal member (3), areas P and R are no longer required.
Remove welding device
Outer B-pillar (1) and sections of outer side longitudinal member (4.1 and 4.2) (areas AA, AB, AC, AD and AE).
When installing outer B-pillar (1) without side longitudinal member, areas AB and AE are no longer required.

Weld in intervals, allow too cool down in between; minimum heat distortion.
Finish surface on outer B-pillar (1) and smooth.

Fig 9: Identifying Weld Areas On Outer B-Pillar
Courtesy of MERCEDES-BENZ USA