Bodyshell
Bodywork
89
Introduction of the New A-Class, Model Series 176
b
Bodyshell structure
Each individual bodyshell element has been devel-
oped to suit the loads it will encounter in terms of
its geometry, material thickness, joining technology
and material quality. The proportion of increased-
strength and ultrahigh-strength sheet steel now lies
at approx. 66%.
As well as spot welds and clinching, high-strength
adhesives are increasingly used to form strong
connections between the panels. This also
increases the rigidity of the body and forms part of
a package of NVH measures (Noise, Vibration and
Harshness) intended to improve acoustic and vibra-
tion-related characteristics.
The flanges at the connecting points of the panels
have been designed so as to create a tolerance
balance which allows the parts to be joined with
very little stress. All of the panels used are galva-
nized. No MAG welds have been used.
A distinction is made between the following assem-
blies:
• Front module
• Integral carrier, front end with firewall
• Substructure including rear end structure
• Left/right side wall
• Roof
In terms of material quality, design and joining
technology the individual components in these
modules correspond to those of the B-Class, model
series 246.
– This printout will not be recorded by the update service. Status: 06 / 2012 –
