BMW 750i Sedan Technical Information PDF herunterladen (Seite 19)

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:

䉯 slide battery switch to Off position. Refer to

Battery Switch in vehicle owners manual.

䉯 consider using a proper trickle charger, fol-

lowing the charger manufacturers instruc-

tions, to maintain the batterys state of charge;

or

䉯 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 bat-

tery 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 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 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

unlimited mileage anti-corrosion warranty are

outlined in the Warranty Section of this Booklet

(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 NA 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 on metal components.

Your BMW center will do this anti-corrosion ser-

vice for you.

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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