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Service message, diesel cars

Service message, diesel cars


General

The SID control module shows service messages on the main instrument display when servicing is due. Any of the following messages may be displayed:


• Time for intermediate service

• Time for main service

• Time for intermediate and main service


Intermediate service

The determination of an appropriate time for an intermediate service depends on the distance travelled since the last service and on the oil quality. The oil quality is calculated according to an algorithm stored in the diesel engine control module. The algorithm takes into consideration time, number of cold-starts, the number of crankshaft revolutions and the distance travelled.

Main service

The determination of an appropriate time for this service depends on the distance travelled.

Main and intermediate service

This combination of intermediate and main service occurs when the scheduled times for both service types are close together and the criteria for one of them are satisfied.

The service interval is programmable and is programmed during production according to the various markets. If necessary, the interval can be changed using the diagnostic tool.

Activation of the service message

Depending upon which occurs first, the service message is displayed either when the day counter reaches the maximum number of days or when 1000 km or 600 miles remain to the next service. The algorithm used to determine the service point also takes into account cold-starts and crankshaft revolutions.

The message is displayed when the ignition is switched on in conjunction with “CHECKING”.

Manual reset

The service message is reset by holding both the CLR button and the brake pedal depressed for at least 8 seconds. An acoustic signal is sounded when the deletion is complete. The message can only be deleted when it is displayed on the SID. The reset initiates a new service interval and zeroes the day counter.

Reset with diagnostic tool

It is possible to reset the service message using the diagnostic tool even if the message has not been activated. The brake pedal must be depressed when the reset is carried out with Tech 2.

A reset can be appropriate if for example a service is carried out before a long journey. The interval to the next service is then calculated using the current odometer reading as the starting point. With a reset the day counter is also zeroed.