I am still getting this code on my 2005 300C.
I thought maybe the last person that change my oil used 5W-30 oil (which I was getting p1521 code also then, but have since cleared the codes and that one isn't back yet)
What do I need to do to fix this?
Where is this sensor on the engine? Easy to change? Any part #'s for it?
Also, I found this one on Autozone's website. Is this the same part?
AutoZone.com | Shopping | Parts | Product Detail - Oil Pressure Switch
I gotta get this fixed since it won't pass inspections since it keeps throwing the MIL light.
Thanks!