BMW Z4 sDrive30i Technical Information download pdf (Page 6)

䉯 Altered or unreadable Vehicle Identification

Number (VIN) or odometer irregularities or

vehicles where the true mileage cannot be

determined

䉯 Maintenance or repair after the vehicle is

deemed a total loss

䉯 Maintenance or repairs performed by other

than an authorized BMW center within the

United States or Puerto Rico

䉯 Vehicles used in competitive events

䉯 Oil changes performed outside the

recommended maintenance intervals as

indicated by the Service Interval Indicator

Maintenance Upgrade Option

Please contact your authorized BMW center for

information and availability on the optional

Maintenance Program Upgrade for coverage up

to 6 years and 100,000 miles.

Intervals

Time intervals should be followed using the

maintenance interval as indicated by the BMW

Service Indicator lights on the check control

panel in the dashboard.

Maintenance intervals on motor vehicles have

conventionally been specified based upon

accumulated mileage. However, the type of

driving conditions has a major influence on

routine maintenance requirements; distance

traveled is only one of the significant factors. A

vehicle driven for 50,000 miles of short trips in

the city with numerous cold starts, prolonged

periods of idling, stop-and-go driving, and high

engine speeds during acceleration requires more

frequent maintenance intervals than a vehicle

driven for 50,000 miles for long distances at low

engine speeds primarily at operating

temperature.

The advanced technologies at BMW have led to

the development of the unique BMW service

interval indicator which computes the actual

optimum maintenance requirements based not

only upon the accumulated mileage, but taking

into account important factors such as engine

coolant temperatures, high or low engine speeds,

short or long trip driving, and number of vehicle

starts. The maintenance interval may therefore

be maximized with considerable savings to

owners of vehicles subjected to light duty.

This BMW Service and Warranty Information

Booklet should be presented to your BMW

center when maintenance is required. Your BMW

center will stamp this book documenting the

services or maintenance performed.

Condition Based Service (CBS)

CBS is a further development of the Service

Interval Indicator System. Sensors and

sophisticated algorithms take even more detailed

account of the various conditions of vehicle use.

The remaining times for selected maintenance

tasks as well as any legally prescribed dates are

displayed to you individually:

䉯 Engine oil

䉯 Brakes - front and rear separately

䉯 Brake fluid

䉯 Vehicle check

䉯 Required State Inspection(s)

CBS thus determines the current and future

maintenance requirements. This data can also be

read from the vehicle key by your BMW Service

Advisor and used to propose the optimum scope

of maintenance.

Disconnecting the battery during periods

of long-term storage will interrupt the

calculation of time-based services. Have all items

requiring time-based maintenance, such as

brake fluid and possibly also the engine oil and

microfilter, brought up to date by your BMW

center. Also see the section on battery care on

page 18 of this statement.

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