Main service

Determined by solely by mileage (double the interval of intermediate services). The main service includes additional work that is carried out less often than oil changes.

Both main service and intermediate service are indicated simultaneously if they coincide.

The car's first service is an intermediate service. Ideally, the next service is a combined intermediate and main service followed by an intermediate service and so on. The pattern is interrupted if the remaining engine oil life or days to next intermediate service expire early. This occurs if the oil is subjected to tougher conditions than usual (many cold starts, high temperature, high engine load or high engine speed) or if the car has low annual mileage. If this is the case, there will be two intermediate services in a row and then, if necessary, a main service alone. Note that the oil is not changed in a main service. It is only changed during an intermediate service or a combined main and intermediate service.

The SID menu "System settings" shows the day counter and the remaining oil life in %. If an intermediate service is indicated before the day counter reaches 0 and despite the oil life having a relatively high value, it indicates that the mileage has been exceeded.

If a control module, such as the engine control module, has been replaced always "Remove" the control module via Tech2 before disconnecting it. Once the new module has been installed and SPS programmed, "Add" the control module using Tech2. This procedure reads the service data out of the old control module and loads it into the new one.

Tech2 can also be used to do the following: 

• Change service program
• Read and modify service data
• Reset intermediate service in advance