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!
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7.3 Engine peripherals/drivetrain
7 Modifications to the basic vehicle
7.3
Engine peripherals/drivetrain
7.3.1
Fuel system
Modifications to the fuel system may only be carried
out with the approval of the department responsible
(see chapter 1.6 “Contact” (
The clearance of the fuel filler neck, fuel tank and fuel
lines must be maintained.
The attachment of heat-conducting components or
components which restrict installation space is not
permitted.
!
Note
Non-approved modifications to the fuel system (fuel
tank, lines, etc.) may be out of FMVSS/CMVSS
Safety Compliance and may also lead to impaired
performance and engine limp-home mode.
For connections supplying fuel to an auxiliary heater,
the procedure for type approval must be followed.
H
Environmental note
Modifications carried out incorrectly to the fuel
system may have a detrimental effect on the envi-
ronment.
7.3.2
Exhaust system
On no account may any modifications be made to the
exhaust system.
The following minimum clearances from plastic lines,
electrical cables and spare wheels must be maintained
with all modifications:
•
200 mm for exhaust systems without shielding
•
80 mm with sheet metal shielding
•
40 mm with sheet metal shielding and additional
insulation
All components must be adequately protected from
sources of heat (e.g. exhaust system). It is important
to not only consider the radiant heat emitted by the
exhaust system, but also the jet of exhaust emitted
behind the outlet under all operating conditions.
Additional shielding is required
•
Near control panels
•
Near major assemblies, attachments and equip-
ment, unless they are made of heat-resistant
material.
