BMW 5 E39 owners manual page 172

text version of content this owner's manual page from owners manual to the vehicle BMW 5 E39, year of production 1996 - 2003:

172nCaring for your car Exterior finish Depending upon material and type of In coastal regions, high levels of To provide effective corrosion protec- impact (perforation of paint layer), phys-atmospheric salt and humidity promote tion, multilayer paintwork is applied at ical stresses from sand, road salt, corrosion. the factory. Cataphoretic immersion gravel, etc., can cause corrosion to In tropical zones, temperatures of over priming techniques are supplemented start extending beneath the finish, start-1057 (406) in the shade prevail, in using special body-cavity protectants, ing at the point of impact. addition to heavy ultraviolet radiation with the application of specially-devel-Road dirt, tar spots, dead insects, ani-and high humidity. Under those circum- oped and extensively tested materials. mal droppings (strong alkali effect) and stances, light exterior finishes reach A layer of flexible PVC is first applied to tree excretions (resins and pollen) all temperatures of up to 1757 (806) the undercarriage. Following this, a contain substances capable of causing and dark finishes up to 2507 (1206). comprehensive undercoating treat- damage when allowed to remain on the ment with a wax-based protectant is finish of your vehicle for any period of applied. time (spots, etching, flaking, separation Regular maintenance makes an impor- in the top coat). tant contribution to maintaining the In industrial areas, deposits from fly safety and value of your vehicle. ash, lime, oil deposits, sulfur-dioxide in Increasing awareness of the effects of precipitation (acid rain) and other envi- harmful environmental factors on vehi- ronmental pollutants will all damage the cle finishes have led paint and vehicle surface of the vehicle unless adequate manufacturers to initiate ongoing pro- protection is provided. grams designed to further improve the durability of their finishes. Despite this, environmental factors that occur locally or regionally can have negative effects on the finish of your vehicle. These should guide you in determining the fre- quency and extent of your efforts to maintain the vehicle finish. Online Edition for Part No. 01 41 0 155 420 - © 01/01 BMW Group

owners manual BMW 5 E39

owners manual BMW 5 E39 - year of production: 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 - BMW 5 E39 owners manual EN