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10 Performing straightening work on
body structure
10.1 Straightening
In series production, the vehicle body and floor sections are pri‐
marily manufactured from cold-formed deep-drawn sheet metal
panels. For this reason, the straightening of areas damaged in an
accident should be carried out in the same manner.
If the extent of the damage makes it impossible to straighten the
part in this manner, the damaged part should not be cut out until
the adjacent surfaces have been straightened.
10.2 Separating cuts
Separating cuts affecting the fatigue strength of the body and
therefore also vehicle reliability and roadworthiness must be
made as instructed in the relevant Body Repairs workshop man‐
ual.
10.3 Body sub-parts and part sections
A sub-part is a section of a complete part (e.g. end section at front
and rear), which is already cut to size when it is supplied by the
spare parts warehouse.
♦ Part sections, on the other hand, must be cut to size from re‐
placement parts by the workshop itself. The methods to apply
in each case are described and illustrated in the Body Repairs
workshop manual.
♦ As the use of “sub-parts”/“part sections” and special tools and
equipment has an influence on the time required, special tools
and equipment are listed separately in the description of repair
operations.
General InformationBody Repairs, General Body Repairs - Edition 04.2018
10. Performing straightening work on body structure 55