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13 Glass repairs
13.1 Repairing windscreens
As a cost-saving alternative to renewing windscreens which are
bonded on, it may be possible in some cases to repair wind‐
screens damaged by stone chipping.
Tinted windows and windows with a coloured sun strip, insulated
glass and/or a heating function can also be repaired, as the tinting
and heating is provided by a PVB layer in the window glass.
The windscreen should be repaired rather than renewed if the
requirements specified below are met.
13.1.1 Requirements
• Damaged area must not be within direct field of long-distance
vision -1-. This field corresponds to a roughly 29 cm wide strip
(A4 landscape format) centrally positioned in the driver's direct
line of vision in the direction of travel and extending to the top
and bottom of the wiping area.
• The cracks radiating from the damaged area -2- must not be
longer than 50 mm and must not run outwards to the edge.
• Diameter of impact point -1- must not exceed 5 mm.
• Coloured film -2- or inner glass -3- must not be damaged.
• There must be no dirt or moisture in lower area of cracks.
• Therefore the time elapsed since the damage occurred must
not be too long.
The following types of damage can be repaired, however the
damaged area must NOT be not located in the field of long-range
vision or at the edge of the windscreen:
General InformationBody Repairs, General Body Repairs - Edition 04.2018
66 13. Glass repairs