BMW 325Ci Convertible Technical Information download pdf (Page 19)

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 engine’s charging system will not

maintain the battery. Insufficient use of the

vehicle could result in short term starting

problems and in the long term could damage

the battery.

In case the car is not operated for more than

four weeks it is advisable to:

a)consider using a proper trickle charger,

following the charger manufacturer’s

instructions, to maintain the battery’s 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

implemented by BMW now make it possible to

offer a twelve-year limited mileage anti-

corrosion warranty against rust perforation on

your vehicle provided that the vehicle is

maintained in accordance with the provisions

of the New Vehicle Limited Warranty as

outlined in the Warranty Section of this

Statement (page 30).

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 with

metal folds 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 twelve-year

unlimited mileage anti-corrosion warranty are

outlined in the Warranty Section of this

Statement (page 32).

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.

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.

Your BMW center will do this anti-corrosion

service 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.

Battery Care

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