Self Study Program 421 – Body Basics

VAG SSP 421. This self-study programme will explain the basic associations of material science, steel production and the treatment processes leading up to painting. It will lay the foundations for better understanding of the procedures should body repairs be necessary.

What springs to mind when you think about a vehicle? Normally the drive, the engine, the performance and the image come first.

But what would a car be without its body? It is the central component of a vehicle that connects all other vehicle components and, at the same time, manages to accommodate the passengers.

It meets high technical requirements as well as the comfort expectations of passengers.

Furthermore the body in particular bears the characteristic face of a vehicle and thus also of the car brand.

A modern body needs to retain a good condition, if possible, for the whole “life” of the car so that no unnecessary costs arise. This prevents a fast moral decline of a vehicle model and the brand will be held in high esteem.

It is also important that damage to a body that occurs in any future accidents can be repaired and this high-quality vehicle component can thus retain its properties and appearance.


  • Introduction
    • Historical background
    • Bodies
  • Basics – Materials
    • Basics – General information on materials
    • Basics – Steel
    • Basics – Treatment of steel
    • Basics – Aluminium
  • Steels for Body Construction
    • Classification of steels for body construction
    • Increasing the strength of steel
    • Body structure
  • Basics – Process Engineering
    • Manufacture of semi-finished products
    • Tailored blanks
    • Joining processes
    • Coating processes
  • Corrosion Protection
    • Pre-treatment
    • Seam sealing
    • Stone chip protection
    • Protection against galvanic corrosion
    • Painting
  • Repair
    • Basics
    • Repair methods
  • Glossary

The self-study programme portrays the design and function of new developments.
The contents will not be updated.

For current testing, adjustment and repair instructions, refer to the relevant service literature.

Language: English
Format: PDF
Pages: 76

Self Study Program 421 – Body Basics PDF free online