Check the oil

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2006 Volvo S80, 2005 Volvo S80, 2004 Volvo S80, 2003 Volvo S80, and 2002 Volvo S80. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Oil grade: Only ATF-oil, Volvo part number 1161540-8 (1-liter container) may be used.

WARNING:

Avoid skin contact with the oil.

Check the oil. Take a sample with the dipstick.

Is the oil discolored or does it smell burnt?

Check if diagnostic trouble code TCM-0042, TCM-0046 is stored.
Also troubleshoot the transmission according to code TCM-0046.
When changing the oil. See Transmission fluid, replacing .

Is there coolant in the oil (oil grey-colored)?

Check the oil for coolant, see Checking for coolant in the oil
Determine the cause why there is coolant in the oil.
Replace the gearbox.
For petrol engines see Gearbox, removing and Transmission, installing

NOTE:

Always replace the cooler and the additional oil cooler (where applicable) if there are signs of water in the transmission oil.

Flush the oil cooler, pipes and oil hoses

Use only ATF-oil, Volvo part no. 1161540-8 (1-liter container).

WARNING:

Avoid skin contact with the oil.