BMW Z4 Roadster Owner's Handbook Manual page 320

MOBILITY
Dust and road dirt will otherwise become worked
into pores and folds, resulting in considerable
abrasion and causing the leather surface to be‐
come prematurely brittle.
In order to protect against discolouration, for ex‐
ample from clothing, clean and care for the
leather approximately every two months.
Clean light-coloured leather more frequently as it
has the tendency to soil faster.
Use leather cleaner, otherwise dirt and grease
will attack the protective coating of the leather.
Care of upholstery fabrics
General
Regularly clean the upholstery with a vacuum
cleaner.
In the event of heavy soiling, for example stains
caused by drinks, use a soft sponge or a lint-free
microfibre cloth with suitable interior cleaning
agents.
Clean the upholstery up to the seams using wide
wiping actions. Avoid rubbing vigorously.
Safety note
NOTE
Open Velcro fasteners on articles of clothing
can damage the seat covers. There is a danger
of damage to property. Make sure that any Vel‐
cro fasteners on your clothing are closed.
Care of special parts
Light alloy wheels
When cleaning the wheels while they are instal‐
led on the vehicle, only use neutral rim cleaner
with a pH value of between 5 and 9. Do not use
abrasive cleaners or steam cleaners above
60 ℃/140 ℉. Observe the manufacturer's in‐
structions.
320
General care
Corrosive, acidic or alkaline cleaners may destroy
the protective layer of adjacent parts, for example
brake discs.
After cleaning, briefly apply the brakes to dry
them. The heat generated by braking dries the
brake discs and brake pads and protects them
against corrosion.
Chrome surfaces
Chrome-like surfaces should be cleaned care‐
fully with plenty of water, particularly if affected
by road salt, if necessary with added car sham‐
poo.
Rubber parts
The surfaces of rubber parts can be contamina‐
ted or lose their shine due to environmental influ‐
ences. Only use water and suitable care prod‐
ucts for cleaning.
Rubber parts subjected to high wear and tear
should be treated regularly with rubber care
products. Do not use silicone-based care prod‐
ucts for treating rubber seals, otherwise these
could be damaged and become a source of
noise.
Fine wood parts
Clean fine wood trims and fine wood parts with a
damp cloth only. Then dry them with a soft cloth.
Plastic parts
Cleaning agents containing alcohol or solvents,
such as nitro thinners, cold cleaners, fuel or
similar can damage plastic parts. There is a
danger of damage to property. Clean with a mi‐
crofibre cloth. Lightly moisten the cloth with
water, if necessary.
Plastic parts include, for example:
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Online Edition for Part no. xxx - X/18
NOTE
Imitation leather surfaces.
Roof lining.