Porsche 996 TT, Repair Manual

Page: 232 / 2099

5 Work sequence for determining scope of damaged
vehicles involved in an accident
Note
Note
A body is constructed so that it has deformable zones in the front and rear area. These deformable
zones enable absorption of impact energy due to their special construction. The bearing structure in
these areas is adapted by a specific cross section reduction to provide optimum energy reduction in
the event of an impact. •
Due to the vehicle dimensions in the side area of the body, deformable zones can not be provided for
absorbing energy. The impact energy can only be absorbed to a small extent here through the
deformation of doors and columns. This is also the case for the roof area where only the roof seal can
absorb impact energy to a very small extent. In these areas, passenger protection is guaranteed by a
rigid construction of the passenger compartment. •
The aim of this design is to absorb the impact energy in defined areas to keep the passenger
compartment as free of damage as possible in the event of an accident. If the passenger compartment
has been deformed in the event of an accident, extremely large reshaping forces can be expected.
Repair work is often only possible in this case by replacing the body parts.
•
In general, an impact occurs diagonally or offset to the vehicle axle so that mixed forms are usually
the result of a front and side impact or a rear and side impact. The deformation is not always in the
impact area. Due to bearing forces of loads such as running gear, drive line, occupants of the vehicle
and load or the body itself, deformation can also occur in the opposite areas.
•
The following work sequence should provide assistance to correctly determine the scope of damage of
vehicles damaged in an accident.
•
Work sequence for determining scope of damaged vehicles involved in an accident
Identify impact points on the outer shell or the wheels
“
Remove accessories which limit view of the impact area
“
Check unit holders, running gear parts and steering parts for deformation and cracks
“
Determine scope of damage on the body
’
−Identifiable deformations on the body structure− −No identifiable deformations on the
body structure−
Visual inspection of the structural parts for creasing
and bending from the impact starting from the central
point of vehicle
“
Check seam joining line on the
accessories’ 5 Diagram − Body gap
dimensions
“
5 Work sequence for determining scope of damaged vehicles involved in an accident 169