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Mercedes-Benz Body & Equipment Guideline for Metris - BM 447, Version November 27, 2015.
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Please observe the revision notes compared to 09/18/2015 ! Only print out complete sections of the current version!
70
7.2 Bodyshell/body
7 Modifications to the basic vehicle
Roof cutouts
Roof cutouts must comply with the maximum values
listed below.
Dimensions for roof cutouts
Roof cutouts based on example of vehicle length
A2
1 Roof bows
2 Possible positions for roof cutout
3 Max. roof cutout diameter 120 mm
4 Min. clearance of 100 mm from roof bows required
Roof height increase
The height of the roof may only be increased in con-
junction with integrated bows and reinforcement
frames.
Roof loads are not permissible when roof height exten-
sions are fixed to the body.
Refer to 9.7.2 “Crosswind Assist” (
modifications to the projected lateral face.
Retrofitting a pop-up roof/roof hatch
!
Note
Retrofitting of a pop-up roof or roof hatch is only
permissible with an upfitter impact study (UIS) from
the department responsible, see chapter 1.6 “Con-
tact” (
Plastic roofs are suitable for the installation of roof
hatches only to a limited extent.
The roof load-bearing capacity is limited
(
Page 52). In the event of deviations, approval is
required from the department responsible (see chapter
1.6 “Contact” (
If a pop-up roof is fitted, at least two-thirds of the orig-
inal roof area must be retained. Struts or load-bearing
parts may not be removed.
Modifications to cab roof
a
WARNING
Modifications to the cab must not impair the func-
tion of any components relevant to safety (e.g.
airbag units, sensors, pedals, gearshift lever, lines or
others). This may lead to the failure of components
or parts relevant to safety.
On no account should subsequent modifications be
made to the headliner or roof panel if the vehicle
is equipped with window airbags. Otherwise, the
window airbag may no longer work correctly (e.g.
window airbag deployment is delayed or incomplete).