Emission Control Maintenance
Schedule
The maintenance schedule as shown is required
for the proper functioning of the emission con-
trol systems for optimum vehicle performance
and fuel economy.
Basic Engine
Engine oil As specified by CBS
Engine oil filter As specified by CBS
Fuel System
Air filter As specified by CBS
Ignition System
Spark plugs 528i, 528xi, 550i: 100,000 miles 535i, 535xi, 535xi Sports Wagon: 45,000 miles
Emission Control
Components
Oxygen sensor 120,000 miles
Battery Care
If your car is driven only for short distances of
less than 10 miles over a prolonged period of
time, without an occasional drive at highway
speeds, the engines charging system will not
maintain the battery. Insufficient use of the vehi-
cle could result in short term starting problems
and in the long term could damage the battery.
In case the car is not operated for several weeks
it is advisable to:
a. consider using a proper trickle charger, fol- lowing the charger manufacturers instruc-
tions, to maintain the batterys state of
charge; or
b. consult your BMW center regarding battery removal. Once removed, the battery must be
charged and stored in a cool, dry place
where it can be protected from freezing. If
the battery will be stored for over 3 months,
it must be recharged every 3 months, or else
it will become damaged and useless.
Please consult with your BMW center for further
guidance and information.
Corrosion Protection
Extensive corrosion protection measures imple-
mented by BMW now make it possible to offer a
twelve-year unlimited mileage anti-corrosion
warranty against rust perforation on your vehicle
provided that the vehicle is maintained in accor-
dance with the provisions of the New Vehicle
Limited Warranty as outlined in the Warranty
Section of this Booklet (page 31).
The major degree of corrosion protection is due
to the electrophoretic dip painting process
which cathodically deposits paint particles on all
body parts, attracting paint particles into the
minutest cavities or seams. Body parts are
designed to provide optimum corrosion
protection.
During manufacture, exterior body parts receive
an additional corrosion protection coat. Hood,
trunk, doors and other body parts are coated
with PVC and sealed from the outside.
All floor panels receive a resilient coating of PVC
for maximum protection against damage due to
stones, etc.
Corrosion protection materials tested over many
years are applied to the surfaces of cavities and
to the entire underside of the vehicle during and
after assembly.
Requirements for maintaining the 12-year unlim-
ited mileage anti-corrosion warranty are outlined
in the Warranty Section of this Booklet
(page 33).
Restoring corrosion protection
Please take care that anti-corrosion material is
replaced when your car is repaired after body or
chassis damage.
BMW will not accept any liability for any
parts and accessories not approved by
BMW.
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Underbody maintenance
The underbody has to be cleaned at least once
a year, in spring, with plain water in order to
remove mud, chemical sediments and other
deposits. If those materials are not removed,
corrosion (rust) will occur on metal components.
Your BMW center will do this anti-corrosion ser-
vice for you.
WARNING
Do not apply additional undercoating or
rust-proofing on or near the exhaust manifold,
exhaust pipes, catalytic converter or heat shields.
During driving, the substance used for
undercoating could overheat and cause a fire.
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