Notes On Damage Analysis - SMART Fortwo 451 Series Introduction Into Service Manual

Chassis
If damage to the chassis has occurred or is
suspected, a wheel alignment check is recom-
mended for quick diagnosis of the damage. The
wheel alignment data for the series production
vehicle with combustion engine apply.
In order to prevent false measurement results,
undamaged wheels must be mounted on the vehicle
before the wheel alignment check. In particular,
the four bolting points (front axle carrier/frame-
type integral support) to the body must be
checked for displacement.
If there is any type of deformation on the front or
rear axle, it must be replaced. For this reason,
these components must be visually inspected with
care for cracks and deformation.
In order to check for frame damage, electronic
body measurement systems can be used for diag-
nostic purposes e.g.
• "Contact" (CAR BENCH)
• "NAJA" (Celette)
• "Shark" (Blackhawk)
Introduction of smart fortwo electric drive (3rd Generation) • Model Series 451

Notes on damage analysis

High-voltage system
If the vehicle suffers significant damage due to
external force, the high-voltage system must be
checked to determine whether it is deenergised.
Work on the vehicle may only be carried out by an
"Electrical specialist for HV systems in motor
vehicles (series production vehicles)".
If it is not possible to definitively determine that
the high-voltage system is deenergized, e.g. due
to mechanical damage, no further work may be
performed on the high-voltage system.
Once the power has been disconnected, the high-
voltage system must be checked for external
damage and defects. Damaged or defective high-
voltage components, cooling systems or lines
must be replaced.
Repairing the high-voltage components is not
permissible.
When inspecting high-voltage components,
personal protective equipment must always be
worn (safety glasses, electrical gloves etc.).
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