Partially prepare upper front longitudinal member - AR62.20-P-1287-02EW

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.

Scribe separation point on upper front longitudinal member (1) (area A).
Transfer dimension from vehicle (area A).
Cut upper front longitudinal member (1) at separation point (area A).
Grind mating surfaces on upper front longitudinal member (1) down to bare metal in crosshatched areas.
Grind spot weld flanges down to bare metal on both sides.

Do not coat bonding surfaces with zinc dust paint to prevent adhesion problems (areas B₁ and C₁ ).

Observe pretreatment of bonding surfaces.

Fig 1: Identifying Upper Front Longitudinal Member Separation Point & Mating Surfaces
Courtesy of MERCEDES-BENZ USA