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Caring for your vehicleRear window cleaningWhile the roadster's rear window has
the advantage of being extremely flex-
ible, there is the disadvantage that it
has a relatively soft surface. For this
reason, clean the rear window only with
a soft, antistatic cloth or with BMW
Convertible Rear Window Cleaner.
If you wash the vehicle frequently in
brush car washes, and in particular in
those with hard brushes, faint scratches
in the rear window may result. With the
window replacement system you can
replace a heavily scratched window at a
relatively low price. Please contact your
BMW center for additional information.
Do not use spot removers, paint
thinners, solvents, gasoline or
similar substances for removing spots
from the convertible top or from the
rear window. These materials destroy
the rubber seals, which will lead to
leaks. Use only BMW-approved
cleaners.<
Exterior finishTo provide effective corrosion protec-
tion, multilayer paintwork is applied at
the factory. Cataphoretic immersion
priming techniques are supplemented
using special body-cavity protectants,
with the application of specially-devel-
oped and extensively tested materials.
A layer of flexible PVC is first applied
to the undercarriage. Following this, a
comprehensive undercoating treat-
ment with a wax-based protectant is
applied.
Regular care makes an important
contribution to maintaining the safety
and value of your vehicle.
Increasing awareness of the effects of
harmful environmental factors on
vehicle finishes have led paint and
vehicle manufacturers to initiate
programs designed to further improve
the durability of their finishes. Despite
this, environmental factors which occur
locally or regionally can have negative
effects on the finish of your vehicle.
These should guide you in determining
the frequency and extent of your efforts
to maintain the vehicle finish.
Depending upon material and type
of impact (perforation of paint layer),
physical stresses from sand, road salt, gravel, etc., can cause corrosion to
start extending beneath the finish,
starting at the point of impact.
Road dirt, tar spots, dead insects,
animal droppings (strong alkali concen-
tration) and tree excretions (resins and
pollen) all contain substances capable
of causing damage when allowed to
remain on the finish of your vehicle for
any period of time (spots, etching,
flaking, separation in the top coat).
In industrial areas, deposits of flue dust,
lime, oily soot, precipitation containing
sulfur-dioxide (acid rain) and other envi-
ronmental pollutants will damage the
vehicle's finish unless adequate care is
provided – even though this is generally
limited to the outside horizontal
surfaces.
In coastal regions, high levels of atmo-
spheric salt and humidity promote
corrosion.
In the tropics, in addition to ultra-violet
radiation and high humidity, tempera-
tures over +105 7 (+40 6) in the
shade are common. Under those condi-
tions, light paints can reach tempera-
tures up to +175 7 (+80 6) and dark
paints up to +250 7 (+120 6).
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