Check engine light on 2008 volvo s80 - 2002 BMW 5 Series

the trunk light fuse will be the same fuse as the glove box and interior lights

2000 Volvo s80 won't start - YouTube

? 1:39
www.youtube.com/watch?v=SNvrQYmBIVw
Jul 29, 2013 - Uploaded by Christopher Johnson
Change the wires and I am sure the car will start up fine. ... VolvoS60 S80 V70 Corroded Starter Wire Engine Will Not Crank or Turn Over ...

Definitely use diesel engine oil I

See if this helps -
Say it's kind of a pain.
Volvo S80 ACC Cabin Air Filter

most likely the dealer. unless you have a vag com (for VW n Audi) system or similar system to what the volvo dealers use to check for engine codes

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yes it made of tough plastic

ebay for comp unit
were thyt volvo o2 sensors

Not likely a computer glitch. I would not ignore this warning. Have it looked at by a professional.

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