BMW M3 2001 Bedienungshandbuch PDF herunterladen (Seite 133)

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Index Data Technology Repairs Car care Controls Overview

Caring for your vehicle

Exterior finish

To provide effective corrosion protec-

tion, multilayer paintwork is applied at

the factory. Cataphoretic immersion

priming techniques are supplemented

with special body-cavity protectants

and application of specially developed

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 maintenance 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

ongoing programs designed to further

improve the durability of their finishes.

Despite this, regional environmental

factors can have negative effects on

your vehicle's finish. Consider these

factors 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), phys-

ical 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 effect)

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. This includes spots,

etching, flaking, and separations 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 tropical zones, high humidity and

heavy ultraviolet radiation prevail, in

addition to temperatures of over 105 7

(+40 6) in the shade. Under these

conditions, light paints can reach

temperatures up to 175 7 (+80 6) and

dark ones up to 250 7 (+120 6).

Caring for the vehicle finish

Regular washing is a preventive

measure against long-term effects from

substances that are harmful to the

vehicle's finish, especially if you drive

your vehicle in areas with high levels of

air pollution or aggressive natural

substances (tree resins, pollen).

Nevertheless, you should immediately

remove especially aggressive

substances. Failure to do so can lead to

changes in the paint's chemical struc-

ture or to discoloration. Gasoline spilled

during refueling, oil, grease and brake

fluid should always be cleaned away

immediately, as should bird droppings.

Any contamination remaining on the

surface of the vehicle will be especially

conspicuous after washing. Use

cleaning fluid or alcohol with a clean

cloth or cotton pad to remove these

stains. Remove tar spots with tar

remover. After cleaning, the affected

areas should be waxed to ensure

continued protection.

Use the cleaning and car-care

products available at your BMW

center.<

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