Hi i have a volvo s80 which i have had recently serviced but now i am getting two messages form the onboard computer saying ,on call service required and engine system servic required .what should i do

This message could have been brought up for any number of reasons and the fact that they are fully computerised makes them very complicated (eg. Sensor failure elecronic failure, misfiring mechanical failure) without the right tools, you will need a volvo vida code reader (check ebay). Otherwise you will have to go to a volvo repairer to get the car scanned for error codes. Note; a independent volvo workshop is generally cheaper for the same thing.

Hi RS, You'll need to have the service reset carried out with someone with a scanner. That will solve the problem! Regards Johngee10

Do you know someone who can take you there?

You will have to get the code scanned to know fore sure , but the most likely problem is an Oxygen sensor. Not a big or expensive job.

position bulbs are tail lights and marker lights.emmisions service is the same as check engine light. take it back to the shop. something left unpugged jarred loose etc.

Hello. I recommend that you take your vehicle to an autozone, or other autoparts store, or a volvo dealership and get it scanned. That is the only way to pinpoint the issues that are generating the engine system service required message. I would do this ASAP so that you do not find yourself stranded somewhere. good luck with it. regards, Joe

The fuel pump which is located in the fuel tank beneath the back seat has gotten bad. Consider replacing it.

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have the code read at a partsource or if you have a reader check the trouble code. could be low on transmission oil or its the computer with the factory set parameters on when your next transmission service was due

disconnect the battery for 5 minutes or use a scan tool, the scan tool is prefered method.

There are three ecu settings? gearbox / main ecu / and center control, they all will need to be updated then a process called learning cycle which has to be reset by the technicians, then the car needs to be driven to adapt the new transmission.