Prepare upper front longitudinal member - AR62.20-P-1286-02CW

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.

Fig 1: Identifying Upper/Lower Front Longitudinal Members Holes & Mating Surfaces

Courtesy of MERCEDES-BENZ USA

Punch ø 7 mm holes on lower front longitudinal member (2) (area A).
Crimp sheet metal flange (1.1) on upper front longitudinal member (1) 180° upward
Grind mating surfaces on upper front longitudinal member (1) and lower front longitudinal member (2) down to bare metal in crosshatched areas.
Grind spot weld flanges down to bare metal on both sides.
Coat insides of spot weld flanges with zinc dust paint.
To prevent adhesion problems, do not coat bonding surfaces with zinc dust paint (areas B, C, D E and F).

Observe pre-treatment of bonding surfaces.