A search of the forum seems to indicate no overwhelming reason to use the relatively expensive Volvo part when replacing the TPMS sensor. It seems that quite a folks have used the VDO aftermarket TPMS sensors with good results, but I did not see anything specific about the VDO unit relative to the XC90 generally.
So I'd like to ask a few questions: Is anyone familiar with the VDO TPMS sensor? It looks like the VDO has a replaceable battery (CR2) - is this truly the case? Finally, is part number VDO-SE10003 the unit I want for my 2008 XC90 V8 Sport?