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Weld work at the vehicle frame should remain limited to absolutely necessary exceptions.
Before performing weld works at the vehicle, it is required to disconnect the car battery. If cables are damaged which are
routed not openly with the battery being disconnected, short-circuits may lead to severe damages.
When performing electric welding works, the earth terminal of the welding set must be directly connected to the vehicle
part to be welded. Otherwise, the high current and the occurring high voltage peaks may damage the mechanical and
electronic vehicle parts.
Only inert gas should be used for welding.
In exceptional cases, also well drained stick electrodes - 2.5 mm - with lime-basic coating may be used.
If additional brackets, etc. are welded, it is only permitted to weld in the so-called neutral zone. Plug welding is always the
preferred method. Avoid weld joints running diagonally to the frame.
Note: The corrosion-inhibiting coating on the side rails is damaged in the welding area as a result of the thermal stress
developing during welding. For this reason, this coating has to be suitably repaired.
Example of a plug weld
Brackets for attachments according to the series requirements.
Note: Subject to errors and technical amendments. The electronic version of the body guidelines is the decisive source of up-to-date data on body guidelines (online body
guidelines). Data status August 2007
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